Kosher apps: a guide to clean apps for a frum phone

Ask around any shul and you will hear the same question: "Which apps are kosher?" Many frum families use a filtered smartphone, a flip phone, or a phone with only a handful of approved apps. They still need to get things done — find a minyan, send a simcha invitation, say Tehillim, watch a shiur, set a reminder — without opening the door to everything else. This guide explains what people usually mean by kosher apps, how they work with a filter, and which free Kall apps can help.

What makes an app "kosher"?

There is no single certification for apps the way there is a hechsher on food, and the final word on what is right for your phone belongs to your Rav and your filter provider. In practice, people usually mean an app that:

1. Has no open browsing. It does what it says and cannot be used to reach the wider internet.
2. Has no open feeds or recommendations. No endless scrolling of content chosen by an algorithm.
3. Has clean content. No inappropriate images, ads or comment sections.
4. Respects Shabbos and Yom Tov where relevant — for example, not sending notifications then.
5. Is useful. It solves a real need, so there is less reason to look elsewhere.

Filtered smartphones, flip phones and web apps

Filtered smartphones. Many families use a smartphone with a filter (TAG, Geder and others) that only allows approved apps and websites. On these phones, whether an app is available depends on the filter's list. Many filters can allow a single website even when the general browser is closed, which is why web apps — apps that open from a web address and can be added to the home screen — are often easier to approve than a full app with unknown links inside it.

Flip phones. Most kosher flip phones have no internet at all, or only very limited apps. Honestly, that means most apps — including Kall's — will not run on them. A flip phone is for calls and texts, and for many people that is the point.

"Kosher" phones with a short app list. Some phones come with a small, fixed set of approved apps. For these, check with the phone or filter provider.

Free Kall apps

Kall in 1 is a set of free, kosher, chassidish-friendly apps in one place. They run in any modern browser and can be added to the home screen so they open like an app. Because each one lives at its own address, a filter can allow exactly the ones you want:

• Kall Video — Jewish music, shiurim, podcasts and kids' videos from a hand-picked list. No comments, no outside recommendations, no links out.
• Kall Siddur — a full siddur in Nusach Sfard, Ashkenaz and Eidot HaMizrach with the day's additions filled in, Tehillim, zmanim, and offline use.
• Kall Local — shuls with minyan times, kosher restaurants, mikvaos, gemachs, jobs and rentals, nearest first.
• Kall Reminders — reminders by time or by place, which wait automatically until after Shabbos and Yom Tov.
• Kall Simcha — simcha invitations in Hebrew, Yiddish and English, with RSVP, headcount and table planning.
• Kall Tickets — tickets for Jewish concerts, dinners and events, with seat maps and QR tickets.
• Kall Forum — a moderated heimish forum.
• Kall Editor — a private video editor that runs on your phone, with nothing uploaded.
• Kall Music — make your own Jewish instrumental music in the browser.

One Kall account works across all of them.

How to add a Kall app to your phone

1. Open the app's address in your browser (for example siddur.kallin1.com).
2. iPhone: tap Share → Add to Home Screen. Android: tap the menu → Install app or Add to Home screen.
3. If your phone is filtered and the page does not open, ask your filter provider to allow that address. You can ask for just the apps you want, or kallin1.com and its apps.

Choosing apps wisely

• Fewer is better. Every app on the phone is something you will open. Keep the ones you need.
• Turn off notifications for anything that is not urgent.
• Watch for links out. An app that opens web pages inside itself can be a back door.
• Ask. Your Rav and your filter provider know your situation better than any list.

In short

A kosher app does one useful thing and nothing else. Kall in 1 gives you those useful things — video, siddur, minyanim, reminders, simchas — free, clean and in one place.