- What are Kosher Mobile Phones?
- Buying Considerations and Guidelines
- Kosher Phone Choices
- Kosher Filtering Software Providers
- Additional Options for Reducing Digital Distractions
- Resources
Retailers, manufacturers, and other kosher phone product providers are welcome to contact us if they would like to be included in this article.
What are Kosher Mobile Phones?
This article suggests kosher mobile phone choices in regard to Telebroad's UNI-Mobile global cellular service.
Kosher mobile phones are limited in "smart" functionality and mobile data connectivity in order to avoid digital distractions and exposure. They purposely block or lack web browsing, social media, and other content consumption capabilities, and have restricted or no app installation options.
Kosher mobile phones tend to prioritize voice and texting communication over all-puprpose use. They either have simplified hardware and software or come with a modified operating system or a filtration layer that removes distracting features and allows only approved or customized apps usage to abide by kosher standards.
Users should generally expect less frequent software or firmware updates since manufacturers have to verify these don't interfere with the kosher modifications and functionality.
Types of Kosher Phones
Kosher phones can be generally classified by four types of devices based on tiers of hardware and operating system. These classifications may overlap or be used interchangeably by vendors, manufacturers, or even users' own expectations.
Furthermore, these classifications also have to do with a phone's available features. Even more advanced phones may be modified, run filtering software, or can be bought in a talk-only or talk-and-text configurations that practically make them work like basic or feature phones.
Dumb/Basic phones: These are the simplest devices, based on the legacy cellular technology that was in use before the advent of smartphones. Their hardware only allows calling and texting since they do not have a cellular modem, meaning they are completely incapable of any mobile data connectivity and internet browsing. This makes them a no-fuss choice for more stringent kosher users, but users should still consider that these phones may have an FM radio feature.
Since more advanced cellular phones are very affordable, pure basic phones are less common, and it is easier to find modified feature phones with talk-only functionality.
Feature phones: These phones do have mobile data connectivity. However, their form factor and small screens make internet browsing impractical or inconvenient. They include only an essential set of pre-installed apps and no option to install additional apps or perform software updates. They usually have a physical keypad and a user interface that supports it, but some models do have touch screens.
Smart feature phones: This hybrid category gives users more smart features, but with a form factor and hardware that is still very similar to regular feature phones. The difference is usually a more advanced operating system (like KaiOS or a trimmed-down version of Android) and a user interface that takes advantage of a touch screen. They also offer better software upgradability, allowing manufacturers to introduce new approved apps and general improvements.
Modified smartphones: These are normal smartphones but with a modified OS/user interface or a filtering layer that allows only selective data connectivity and installation of approved apps or kosher software bundles.
Communication Configuration Choices
While the main focus of kosher phones is avoiding web browsing and undesirable content, access to other communication services may also be limited or blocked.
Many phone models can be bought with different communication configurations. For example, users can buy the same model as talk-and-text, talk-only, or other configurations that suits their kosher requirements.
With basic, feature, and smart feature phones, it is usually not possible to change the initial configuration to access additional communication features. A user would typically need to purchase a new phone with the communication services they need, rather than reconfigure their existing phone.
Smartphones are much more flexible in this regard, but it is still advisable to consider future needs and ask vendors for upgrade and reconfiguration choices.
Talk only: The phone can only make and receive voice calls.
Talk and text (no MMS!): In addition to voice calls, the phone can send and receive text messages, but multimedia messages (images, video, audio, and files) are disabled.
Talk and MMS: Voice calls and full multi-media texting are enabled. The phone can send and receive text messages, images, audio, and file attachments.
Calls and media only: The phone can make and receive voice calls and include selected media apps such as camera, music player, and voice recorder. The music player supports sideloaded files only (no streaming). Pictures or audio captured with the camera or voice recorder cannot be shared with any messaging apps, unless transferred to other devices.
Talk, SMS, and Internet: Voice calls and full multi-media texting are enabled, and the phone also has email, WhatsApp, or other messaging apps. Web browsing is blocked on these phones. WhatsApp or other messaging apps are modified versions optimized for reducing distractions by blocking social-like features such as channels, groups, status updates, or even media sharing.
Web Browsing Filtration
For smartphones and smart feature phones, additional user choices involve the level of web browsing filtering methods.
Filtering software may already be included with the phone or may require a monthly subscription.
The strictest method is to simply block all website browsing and searching (while still allowing internet connectivity for approved apps).
For users who do require web browsing, whitelist or category filtering allows access only to specific websites or to websites from specific categories. An even more flexible method is content filtering that examines and blocks inappropriate text, images, and videos in real time and can be combined with safe search filtering that hides undesirable search results.
Kosher filtering software providers are listed below.
Buying Considerations and Guidelines
- The phone must be unlocked. That means it's not tied down to a specific carrier and can accept any service provider SIM cards.
- While your phone should not be tied down to any specific carrier, in North America the Uni-Mobile service runs on the AT&T network, and your phone needs to be compatible with its cellular frequencies.
While the phones listed in this article are compatible with the cellular frequencies of the AT&T network, hardware and firmware keep changing and we cannot guarantee they will work with our UNI-Mobile service in all situations. Please consider the return/exchange policy of the manufacturer/vendor before purchasing a phone. - Even if you only intend to use your phone for voice calls and texting, it should to be 4G/LTE compatible to be able to use UNI-Mobile SIMs and service.
If you intend to use your phone in other countries, you can find a list of international carriers here, but ideally you should look for a phone with worldwide network compatibility. - For texting and email, keep in mind that phones with a physical keypad use a technology called T9 Predictive for text input that compares key presses to a built-in dictionary. This may take a bit getting used to and a bit slower compared to a touch keyboard. You should, however, avoid phones that use the older and much slower multi-tap method that requires repeated key presses to cycle through letters.
- Besides looking specifically for "Kosher phones", you can also consider "digital-detox phones", "talk and text only phones", or "elderly/senior phones". These are not likely to have an official kosher certification, but can offer the sought-after limited or blocked internet experience that technically satisfies kosher requirements.
UNI-Mobile Installation and Activation Tips
Consider the following tips when installing and activating a UNI-Mobile plan on a kosher phone:
- It is preferable, especially for non smartphones, to use a physical UNI-Mobile SIM over an eSIM. This will make installation easier and likely save the need to configure settings.
- Kosher phones are unlocked devices designed to work with multiple carriers. However, if you can't get your phone to regiseter with the carrier's network (AT&T in North America), you can try activating the SIM in a different device recognized by the carrier, and then putting it back in the kosher phone.
- If the phone settings allow it, you can manually input the network's APN settings, which you can find here.
- Additional suggestions for troubleshooting your UNI-Mobile connection can be found here.
Kosher Phone Choices
Phones are listed alphabetically within each category.
Note that to provide a bigger selection, we have listed some phones that do not have a formal kosher certification, but that do fully block or lack web browsing and app installation capabilities.
Basic and Feature Phones
Pom Classic/Pom Kosher
Find it at www.pomkosher.com/ Manufacturer/vendor kosher attestment: yes Jewish life apps/tools included: Only Zmanim Pom Classic WiFi/Bluetooth: Yes/Yes Processor: Mediatek Helio 20 Memory: 3 GB Internal storage: 32GB Battery capacity: 1450 MAH Display size: 2.83" Touch Screen Camera: 8 MP back, 2MP front Weight: 4.78 oz (134 g) |  |  |
Pom Kosher WiFi/Bluetooth: Yes/Yes Processor: Helio P22 MT6762 Memory: 4GB RAMInternal storage: 64GB Memory. Display size: 3.54" Touch main, 1.44" sub-screen Battery capacity: 1800 MAH Camera: 13 MP back, 8MP front Weight: 5.17 oz (162g) |  |  |
The Pom Classic is a dual-SIM Vaad HaKehillos certified kosher phone with good Yiddish support. It is available in talk-only or talk-and-text configurations, and there is also a model that supports European cellular frequencies.
While the user interface is based on Android 11 and it has a touch screen, it focuses on basic functionality and offers the simplicity of a feature phone with apps like calendar, daily Zmanim list, notepad, and a calculator. The talk-and-text model also has media apps – a camera, an audio recorder, and a music player. Voice-to-text and conference calling is also supported.
The Pom Kosher has the same functionality but better hardware – a13MP camera, a faster processor, more storage, a bigger battery, and a bigger screen.
Punkt. MP02 Minimalist Phone
Find it at www.punkt.ch Manufacturer/vendor kosher attestment: No Jewish life apps/tools included: No WiFi/Bluetooth: Yes/Yes GPS: Yes Processor: Qualcomm® Snapdragon™ 210 RAM: 2 GB LPDDR3, 533 MHz Internal Storage: 16 GB eMMC 5.1 Battery capacity: 1.280 mAh Li-ion Display size: 2.0″ (aspect ratio: 4:3) Weight: 3.6 oz (100 g) Water Resistance: splash-proof to IP52 |  |  |
The Punkt. MP02 is a browser-free digital-detox featue phone designed in Switzerland. It offers an interesting choice for users seeking enhanced privacy by utilizing the Signal protocol for worldwide encrypted calls and texts via Wi-Fi or mobile data.
The handful of apps include only a calendar, calculator, notes, timer, alarm, and contacts. Hebrew is a supported language for both the user interface and text input. The keypad is backlit. SMS and MMS messaging are both supported with T9 input. There is no 3.5 mm audio jack, but a USB-C adaptor is provided.
Sunbeam F1 Horizon/F1 Pro
Find them at www.sunbeamwireless.com Manufacturer/vendor kosher attestment: Yes Jewish life apps/tools included: No WiFi/Bluetooth: Yes/Yes Processor: MediaTek 6739 Memory: 2GB Internal Storage 16 GB MicroSD card slot: up to 32 GB Camera: 2 MP Battery capacity: 1,750 mAh Display size: 2.8″ Display resolution: 240 x 320 Weight 5.4 oz (152 g) Headphone Jack: 3.5 mm Stereo |  |  |
The F1 Horizon feature phone can be ordered in 12 different software and hardware configurations with apps for navigation, weather, a text-only email, and a choice of touch input screen on select models. Some features require a separate Sunbeam subscription.
The Pro version has the same technology, hardware, and configuration choices but is more durable, has a larger battery, and is water-resistant. It is also an ounce heavier.
The manufacturer lists good international roaming and coverage for the phone in the US, Canada, Argentina, Europe, Israel, and Australia.
Smart Feature Phones
Fig Flip II Pro – Android Auto Edition
| Find it at: www.figkosher.com/ Manufacturer/vendor kosher attestment: Yes Jewish life apps/tools included: Only Zmanim WiFi/Bluetooth: Yes/Yes GPS: Yes Processor: MTK6761 Memory: 4GB or 6GB Internal Storage 64 GB or 128GB Camera: 20 MP Camera & 8MP front Camera Battery capacity: 1800 mAh Display size: 3.54" Touch Screen Display resolution: 640x960 |  |  |
Fig produces several customized kosher mobile devices for maximizing user efficiency without compromising religious standards. The Flip II pro is currently their most premium model that comes with impressive cameras, a touch screen, two SIM card slots, and on-screen and T9 keyboards.
Its smart apps include weather information and Waze navigation. The Android Auto edition allows mirroring of the display on a car's dashboard.
It can be bought with either 4GB RAM and 64GB of internal storage or 6GB RAM and 128GB internal storage, and there is also a European version with additional frequencies.
MegaLife F1
| Find it at: www.megalifephones.com Manufacturer/vendor kosher attestment: Yes Jewish life apps/tools included: Yes WiFi/Bluetooth: Yes/Yes GPS: Yes, but depending on configuration Display: 2.8" touchscreen + 1.44" external Cameras: 5MP Rear, 2MP Front Battery capacity: 2000mAh Memory: 4GB RAM Storage: 64GB internal Storage SD card slot: up to 256GB |  |  |
The MegaLife F1 is a single-SIM water and dustproof smart-feature Android phone that is compatible with cellular networks worldwide. It has a manufacturer-guaranteed non-customizable list of rabbinic supervises apps and proactive blocking of unwanted content.
When ordering the phone, you can select between a talk-only or talk-and-text version and a Core and Zen filtering editions, each enhancing its basic features with navigation, media, email, banking, and finance apps. Additional software also includes medical apps, Uber, Lyft, Google Voice, and a filtered WhatsApp messenger.
Software and configurations can only be changed by a seller to configurations of the same fiiltering edition. So users should consider their possible future software needs.
Mind Phone
| Find it at www.greentouchstore.com Manufacturer/vendor kosher attestment: Yes Jewish life apps/tools included: Yes WiFi/Bluetooth: Yes/Yes RAM: 3 GB Internal Storage: 32 GB Micro SD Slot: 128GB Battery capacity: 2400 mAh. Display: 4.0" glass IPS touch display Main camera: 5MP Selfie camera: 2MP 3.5mm headphone jack |  |  |
The Mind Phone is a smart feature phone running a modified Android build called MindOS. It would appeal to users preferring a candy-bar form factor phone and a larger screen, while still carrying a compact device. The physical keypad and touch screen allow for both T9 or on-screen input, with both methods supporting Hebrew characters.
The phone has a dual SIM slot and it comes in talk-and-text or talk-only models, both available in a variety of colors.
Besides basic apps like calendar, weather, notes, a voice recorder, and reminders, a budgeting app is also included, and Google Maps and Waze navigation are soon to be supported, but presently other Google apps are not!
Mudita Kompakt
| Manufacturer/vendor kosher attestment: No Find it at www.store.mudita.com/store Jewish life apps/tools included: No Dual SIM + eSIM (can use either microSD or 2nd SIM) WiFi/Bluetooth: Yes/Yes + NFC GPS: Yes Display: 4.3” E-Ink®, 800x480 resolution Battery capacity: 3300 mAh Li-Polymer Processor: MediaTek MT6761V/WBA Memory: 3GB Internal storage: 32GB MicroSD card slot: up to 2TB. 3.5mm headphone jack Camera: 8MP with dual-color flash Water Resistance: IP54 dust/splash resistance |  |
The Mudita Kompakt is a Polish-made smart feature phone that sets itself apart from the crowd thanks to an E-Ink screen. Commonly found in eBook readers, E-Ink displays are ideal for reading and are considered healthier since they reduce eye strain and radiate no blue light. They also remain clear and readable even in bright sunlight and increase battery life. The tradeoff is low screen refresh rate, but that by itself makes them less appealing for media consumption and web browsing.
Another unique feature is a dedicated offline mode that can be toggled with a physical button and disables cellular reception, the microphone, the camera, Bluetooth, and Wi-Fi to give the user complete privacy and distraction-free usability.
Out of the box, the Mudita Kompakt has no web browsing capabilities or an app store and does not support Google services. It has SMS/MMS messaging but has no other messaging apps. It includes a calulator, weather, calendar, camera, voice notes, meditation, and Chess apps. It also has an eReader app for comfortable reading of books and documents and a map app with offline mode.
Do note that additional apps can be sideloaded to the device by connecting it to a computer. This, however, requires an intentional effort by the user and some degree of technical knowledge. Sideloaded apps may not function properly as they would not be optimized for E-Ink or require Google services.
It is also important to mention that Hebrew is not included for either the user interface or input. Mudita told us that sideloading additional fonts may be possible, but they cannot confirm how the device will function with these. If you regularly use Hebrew or Yiddish in texting, you may want to consider other devices.
The Mudita Kompakt is compatible with cellular networks worldwide on its Global version. However, US users should choose the North America Optimized version as it supports more US and Canadian frequencies and has been succesfuly tested in several American cities. For the North American version, you need to select "United States" as the shipping country on the Mudita store page.
TAK S7
| Find it at: www.takphones.com Manufacturer/vendor kosher attestment: Yes Jewish life apps/tools included: only Zmanin WiFi/Bluetooth: Yes/Yes Display: 2.8-inch Touchscreen Screen resolution: 480*640 Memory: 4GB Internal storage: 64GB Camera: 5MP rear camera+2MP front-facing Battery capacity: 2150mAh |  |  |
Unmistakably kosher with Hebrew letters on its keypad and a Vaad HaKehillos kosher certification on its directional pad, the Tak S7 is a good choice for travelers thanks to global 4G networks compatibility and a dual SIM card slot.
It has a full dictionary for English, Hebrew, and Yiddish, and text can be entered with both on-screen and T9 keyboards.
The phone runs a modified Android 13 operating system, with a kosher-encrypted layer to block internet access, video playback, and app installations. It receives regular software updates to improve functionality and user experience.
The phone can be ordered in three Kashrus configurations: talk & text, talk only with media apps (camera, music player, recorder), or talk only. Compared to other smart-feature phones, currently the list of apps is a bit limited and is more on par with a feature phone, but it does have the Zmanim app for daily halachic times, and the music app has a tag editor.
Wonder Phone
| Find it at www.wondersimple.com/ Manufacturer/vendor kosher attestment: Yes Jewish life apps/tools included: Yes WiFi/Bluetooth: Yes/Yes GPS: Yes Display: 3.5" touch Screen Camera: 21MP rear+5MP front cameras Battery capacity: 2850 mAh Internal storage: 16GB MicroSD card slot: up to 2TB 3.5mm headphone jack |  |  |
The Wonder phone is billed as having been built kosher from the ground up, offering simplicity and practicality without compromise. A built-in feedback option lets users request system refinements, and a wireless update app allows easy downloading of software updates.
The phone can be ordered in a talk and text, talk and media, or talk only configurations.
An on-screen keyboard and T9 predictive text of the keypad can be used for input. The touch screen has an anti-glare coating for use even in bright sunlight. The battery is removable for easy replacement or backup power, and the phone has a 14W fast charging
Users who need good media capabilities would appreciate its 21MP camera that supports HDR mode for better shots in any environment and an extansion slot that takes cards up to 2TB. It also has a voice recorder, a music player app, and supports text-to-speech.
Waze Navigation is available and the phone is Android Auto Compatible to mirror it on a car's dashboard.
Smart Phones
KosherOS Smart Phones
Manufacturer/vendor kosher attestment: Yes
https://kosheros.com/collections/current-phones
Jewish life apps/tools included: Yes (depending on the seleced app package)
Smart phones are inherntly designed for internet use and media consumption, and app installation. The availability of kosher smart phones therefore requires a software solution that blocks internet access, features, and app installation on the operating system level .
One such solution is KosherOS from SafeTelecom for Android devices. It is an operating system that fully control the software running on phone they sell to exclude all the apps and features they do not approve. Their phones give you full access to Google services but do not include any direct or indirect web browsing access.
We have confirmed with SafeTelecom that KosherOS is not merely a user-interface or a launcher layer, but rather an actual custom operating system that is permanent the device. This gives users peace of mind knowing that even booting into safe mode or performing a factory reset, will not expose any unwanted Android features since KosherOS will remain as the only active and accesible operating system.
KosherOS phones can be ordered with a choice of various app packages and intiial functionality can be further extended with apps from the proprietary SafeTelecom app store. The growing list of apps in the store are meticulously inspected to ensure they do not allow web browsing access or bypass other restrictions.
SafeTelecom sells Google Pixel and Moto G KosherOS phones that come with 18 months of free software updates. Also, if you already own a Google Pixel device, you can have them install KosherOS on it for you.
Kosher Phones Vendors
The phones we have listed above can be bought directly from their companies.
For additional phone options, price comparision, or configuration choices you can visit the following vendors websites.
Note that many of the Kosher phones offered by these vendors have been modifies to block some features or outifitted with filtering software. Buying the same models in other online or physical stores ,that do not specilize in kosher products, may result in a device that lack kosher configuraion and standards.
www.koshercell.org: Sells all types of kosher phones and tablets. They offer various app bundles for their Kosher smart phones and users can request additional apps. Physical store is located in Lakewood, NJ.
www.koshersignal.com: A newcomer online retailer operating from Monsey, NY has a large selection of kosher phones and other digital devices. Their website has convenient navigation for choosing filtering and communication level configurations.
www.thesafecell.com : Have a wide selection of approved new and in like-new devices including basic, smart, and navigation phones. Phones on their site can be browsed and filtered by cellular carriers.
www.thewireless.us: Sells, repair, and rent kosher and filtered phones, specalizing in basic and feature phones. Physical stores in Brooklyn and Monroe, NY. Next day delivery in the Tri-State area. They also offer international shipping and sell MP3 players and GPS devices.
Kosher Filtering Software Providers
Kosher filtering software can be intalled on your existing smart mobile devices, as well as PCs, to create a kosher user experience.
The following companies are recommened by TAG.
GenTech www.gentechsolution.com
GenTech offers a filtering solution that uses artificial intelligence to continually keep computers and mobile devices safe and secure and removes unwanted content, including from ads.
Their software runs on Windows, Mac, iOS, Android, and Chromebook devices. It doesn't just block content but rebuilds a clean faster-loading pages.
Depending on the platform, plans are available for one time fees or subscriptions and can block web contect, apps, or both.
Meshimer www.meshimer.com
Meshimer offers a simpler filtering option for users that do not require ongoing adjustment of filteration levels or features.
Regardless, their screening technology optimize internet experience across all browsers for maximum ease and efficiency, while protecting from unwanted content.
The software is available on Android, iOS, and Windows as a subscription and there is also a per-device one-time setup fee. Also note that in-store installation is required, currently available in locations in New York, New Jersey, Quebec, and Montreal.
Geder www.geder.org
Geder filtering software comes with an assortment of features including image and video filtering, ad blocking, and safe searching.
The software can limit internet access to list of pre-approved web categories or whitelisted web pages, that users can expand with their owne choices. Alternatively users can access the the full internet with but avoid questionable content with AI backed smart filtering technology.
Users can limit app access to pre-selected choices and add email access if needed. For those wanting to keep things simple a Waze-only configurations is available.
Geder software runs on Windows, Mac, iOS, Android. Plans are only available as a subscription and there is also a per-device activation fee.
NetSpark www.netsparkmobile.com
Netspark is a subscirption filtering solution that works on Windows, Mac, iOS, Android, and Chromebook devices. It offers various filtrering level, real-time online filtering, blocking or allowing specific websites or categories, blocking inaproprite text messages, blocking specific apps, and screen time management.
Inividuals and familes can share subscription on up 9 devices and tailored plans for organizations with more devices are also available.
Additional Options for Reducing Digital Distractions
If you already own a smart phone and don't wish to modify its user interface or to buy another phone, it is possible to make your phone behave like a feature phone.
While the following methods are not strictly kosher and can be turned off at will, they do provide an on-the-go temporary option for a less distracting digital usage until users can apply a better kosher solution.
Simulating a Feature Phone with Ultra Power Saving
Most smart phones support a battery saving mode that can double or even triple the time the phone can function before it needs to be charged. On this mode, only several selected apps can be used, making for a distraction-free digital experience.
Activating the mode may vary by brand and OS. You can look for it by searching your phone's settings for "Power saving", "Battery saver", "Limit apps", or similar phrases.
Depending on the phone brand and model, notifications may still show for all apps and not just the apps you selected. You would need to disable notifications for any app you wish to not be distracted by.
The following steps are for Samsung phones running the One UI interface:
- Go to your phone setting by swipping from the top and tapping the Settings (
) button. - Scroll down and tap Battery.
- Tap Power saving and toggle on Limit apps and Home screen.
- To enable maximum power saving you can toggle on the main Power saving button on the same screen, however it is more convenient to swipe from the top to access Quick Settings and tap the Power saving button.
- When enabled, you can select only 8 apps to use on the Home Screen.
- To switch back to normal funcionality, tap the menu button and select Turn off Power Saving.
Note that in this mode, lock screen screen may be disabled on some devices while some other devices will not support fingerprint or password verification. Therefore, before enabling it, it is recommened you set up a PIN proetection for your phone.
Mininmalist Launchers and Other Feature Controls Apps
An assortment of feature control apps are avaiable for both Android and iOS to limit and block smart phones functions. These include app blockers, firewalls to limit internet access, parental control, and screen time managment software. Users can combine several apps for better phone control, for example access to a firewall app can be prevented by locking it with an apps blocker.
Mininmalist launchers are user interface aps that are designed to reduce screen time and digital distractions on smart phones. They offer a cleaner usage enviromnent that encourage productivity and focus with simpler home screen layout, showing just essential information, and replacing icons with a text-based interface.
Similar to filtering software and relevant to kosher needs, some launchers can also block or hide notifications and app access (before buying make sure the launcher support this feature).
Advantage of launchers over filtering software:
- Ease of installation. Launchers can be downloaded from app stores and installed in minutes.
- They offer more flexible customization, eapcially for display and aethetic choices.
- They are usually cheaper than filtering software with lower subscription fees and lifetime purchase also available.
Disadvantage of launchers of filtering software.
- Launchers need to be more specificalally configured for kosher requirement, while filtering software is kosher-ready out of the box.
- Launchers cannot block web access per-se, but instead the user will need to block access to all unwanted apps that provide web access.
- Launchers are much easier to disable and circumvent than filtering software.
You can find minimalist launchers by searching your app store for "Minimalist phone/launcher", "Detox launcher", or "Dumbphone" on both Android and iOS.
Resources
PuriFone.com makes kosher filtering and customized software for feature phones. They have vaious filtering grades to balance usability and restrictions. On their web site you will find a range of phones outfitted with their software and they can be contacted for advice on tailored kosher solutions for other feature phones.
TAG (Technology Awareness Group) is an international organization that provides the Jewish communicty with advisory services, support, and education on responsible and koher use of technology and internet filtering technology for computers, smartphones, laptops, tablets, and other devices. It has offices in multiple cities across the US, Canada, and Mexico as welll as aditional locations in Israel, Europe, Brazil, and Australia
Vaad HaKehillos an umbrella organization for several jewish communities which provides kosher certification for technological devices for use on the most stringent levels. Phones approved by the organization carry the Vaad Hakehillos symbol make users feel secure in the knowledge that it meets the standards set by the leadership of their chassidus.