# Katecheo — Screen time into study time

> Screen time into study time (iPhone/iPad app by John Larson.)

- Source: https://appshunter.io/ios/app/katecheo/id6821070455 (this page in markdown: same URL + `.md`)
- Developer: [John Larson](https://appshunter.io/developer/1838381602)
- Category: Education, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 7 MB
- Languages: American English
- Released: 2026-10-11
- Data updated: 2026-10-13

## What is Katecheo?

Katecheo turns the phone you keep picking up into the thing that makes you study.

Choose how many minutes of phone use you get. When they run out, Katecheo covers your other apps and asks one question. Answer it and the apps come back. Miss it and you get another.

LOCKOUTS
• Set the interval, from 15 minutes of phone use upward.
• Choose the apps that always stay open, such as Maps, Messages and music.
• Phone and FaceTime are never covered.
• Set how many chances each lockout gives you.

STUDY SESSIONS
• Schedule study sessions on the days and times you choose, with an alarm that rings even in Silent mode.
• Start a Pomodoro session on the spot with work and rest blocks.
• Turn on quiet time to cover distracting apps for the length of a session.
• Follow the countdown on the Lock Screen.

BUILT-IN DECKS
• New Testament Greek vocabulary: 646 words in 43 units, typed answers.
• The Westminster Shorter Catechism: all 107 questions, graded on how much of the answer you recall.
• 500 key Bible passages in the ESV: read the verse and pick its reference.

STUDY MODE
• Study any range of a deck whenever you like, in order or shuffled.
• Drill the cards you miss most.

YOUR RECORD
• A weekly report of sessions kept, lockouts cleared and cards reviewed.
• Share the report as plain text.

PRIVATE BY DESIGN
• No account, no server, no analytics, no ads.
• Everything stays on your iPhone.

Katecheo is the Greek κατηχέω, to teach by word of mouth, the root of "catechize."

Scripture quotations are from the ESV® Bible (The Holy Bible, English Standard Version®), © 2001 by Crossway, a publishing ministry of Good News Publishers. Used by permission. All rights reserved. www.esv.org


## Version history (last 1 release)

### 1.0 — 2026-10-11

No release notes.

## More apps by John Larson

- [Secure Document Vault](https://appshunter.io/ios/app/secure-document-vault/id6752235497)
- [Hagiazomai: Being Made Holy](https://appshunter.io/ios/app/hagiazomai-being-made-holy/id6820892501)

All apps by John Larson: https://appshunter.io/developer/1838381602

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-13.*