Apps by Jonas Kellert
The mark experiment app icon

Education

The mark experiment

Jonas Kellert

Free download In-app purchases unconfirmed
Open on Apple

About this app

Have you ever tried to memorize a part of the Bible, e.g. a complete book? The gospel of Mark has a very intelligent structure that is very easy to memorize. It is the set of headlines like they are printed above a section in the Bible. This structure is basis for e.g. the Mark theatre, where 15 actors play the complete gospel in 90 minutes in a theatre-in-the-round without any stage props. This is very impressive. Anyway, memorizing the gospel is a very good idea for studying the Bible without the physical book. This app is meant to be a training to people who already learned the structure (partially) anyway, as a smartphone is much quicker in use than a non-interactive piece of paper. It is based on the book published by VTR Publications. The app can walk trough three different levels of the structure: The complete gospel, one of the six parts (or the introduction or conclusion) or a midsection. For every step, four possible answers are shown to select the correct one. Afterwards, an emoji rates the quality and quantity of your recitation. To get a good rating, you need be fast without thinking about all choices.

Latest release

What’s New

Version 1.1 Apr 16, 2022

Various UI improvements: • Support for the darkmode • Support for screen sizes from iPhone X on • Better listing of answered actions • Improved feedback on wrong answers

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Aug 19, 2026 · 0 ratings Aug 19, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 19, 2026 · Free Aug 19, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 19, 2026 · 12:04 PM Free

Screenshots

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