KolBo Learn

Straight answers on kosher phones and kosher devices

104 guides written by the team that builds the complete operating layer for kosher devices — the market, the certifications, the prices, and the first honest look at what a kosher device can finally do.

Buying a kosher phone

Buying a kosher phone

The market, the certifications, the prices, and the questions to ask — before any money changes hands.

Pillar guide Kosher phones in 2026 — the complete guide Every path, every verified price, every certification — and the two things no phone on any list has ever shipped. Buying Guide A kosher phone for a yeshiva bochur What mesivtas and yeshivos expect, which devices fit, and the wake-up problem nobody budgets for. Buying Guide A kosher phone for work Email, banking, navigation — the parnassah exception done right, priced honestly. Buying Guide Can I make my current phone kosher? What's possible for an existing iPhone or Android — and what "kosher" can honestly mean for it. Buying Guide Dumb phone vs kosher phone Silicon Valley's minimalism and Brooklyn's architecture — what each can teach the other. Buying Guide How much does a kosher phone cost? Devices, plans, subscriptions, and the costs nobody prints — the full math, verified July 2026. Buying Guide Kosher phone certification, explained TAG, Letaher, VAADim, MindOS — who certifies what, and why communities differ. Buying Guide Kosher phone stores, city by city Lakewood, Monsey, Boro Park and beyond — the counters, verified, with two closures flagged. Buying Guide Kosher phones: Israel vs America A central committee vs competing certifiers — and what February 2026 taught everyone. Buying Guide Kosher smartphone vs flip phone A decision framework by life-stage — bochur, seminary, parent, parnassah — not a spec sheet. Buying Guide The first phone for a frum teen When, which device, what rules — the whole kitchen-table conversation, structured. Buying Guide The seminary phone guide School rules, Israeli kosher lines, program phones — and the one need no plan ever covered. Buying Guide The TAG approved phone list, explained What approval means, which models are on it, and why the community keeps dated mirrors. Buying Guide What is a kosher phone? The definition, the levels of practice, and the reasoning — explained from inside the fluency.
Family safety

Family safety

The first family safety platform built for the Jewish world — and every question around keeping a family close.

The kosher internet

The kosher internet

The first kosher Chrome — browsing with protection fused into the build itself.

Email

Email

The first kosher mail client built from scratch — spam defense and child-safe controls in the architecture.

Phone & text

Phone & text

Calling and messaging rebuilt clean — with the unified contact timeline nobody else ships.

WhatsApp & community

WhatsApp & community

Community groups without the account — connection without the exposure.

Torah library

Torah library

Every sefer, fully offline — a complete beis midrash in your pocket.

Kosher AI

Kosher AI

A real AI assistant with kosher guardrails engineered in.

Alarm & clock

Alarm & clock

The alarm with accountability — wake up for the daf because someone is counting on you.

The everyday suite

The everyday suite

Twenty-two apps that behave like one product — the everyday tools, app by app.

Pillar guide One platform, 22 apps A bundle is apps sitting next to each other. A platform is apps built for each other. The Platform KolBo Calculator — maaser built in A calculator that knows who's using it — every cheshbon of tzedakah, tracked where it's figured. The Platform KolBo Calendar — the executive calendar Weather and zmanim woven directly into the schedule — planning on the day's real shape. The Platform KolBo Camera — protected capture Sight protection in the capture pipeline itself, every photo syncing to the family's own cloud. The Platform KolBo Cloud — the backbone Sign in once and everything follows you — photos, notes, playlists, contacts — under one security layer. The Platform KolBo Contacts — every shul preloaded One list shared across the suite — tap any entry and Go is already navigating. The Platform KolBo Gallery — the protected album Our own gallery, not a stock viewer — synced to the family's cloud under one security layer. The Platform KolBo Keyboard — Hebrew-first A Hebrew-first keyboard built in-house, paired with kosher video calling — the input layer, owned. The Platform KolBo Notes — following, protected Synced through the family's cloud, dictation-ready via Voice, under the same one security layer. The Platform KolBo Player — music from your cloud Prepare any playlist on your account and the Player streams it to every device you own. The Platform KolBo Voice — dictation everywhere Voice flows into Notes, Mail, and Text — the input layer as a platform service, ours. The Platform KolBo Weather — no feed attached Clean forecasts, zero news feed — integrated into the Calendar so the schedule knows the storm. The Platform KolBo Zmanim — the engine The Calendar schedules around it, the Alarm wakes by it, the Library opens to the daf by it.
The security layer

The security layer

KolBo Secure — protection for any iPhone or Android that nobody can peel off.

For manufacturers

For manufacturers

The complete application layer, ready to license onto your hardware.

The security layer

Protection for the device already in your pocket

KolBo Secure protects any iPhone or Android — tamper-resistant enforcement, a self-service portal, and real human support. Starting at $14.99/month.

Secure a device

Enrollment, configuration, and billing in one portal — minutes, not appointments.