What's New

Bug fixes
Improved UI

App Description

Supported Languages: German and English

With this app you can train your ability to calculate a weekday for any given date. It offers a great variety of training methods.

This app also gives you an overview of my method/simplification on how the algorithm works and how you can calculate it in your head.

iPhone Screenshots

(click to enlarge)

Calendar-Trainer screenshot 1 Calendar-Trainer screenshot 2

iPad Screenshots

(click to enlarge)

Calendar-Trainer screenshot 3

App Changes

  • October 19, 2017 Initial release
  • June 15, 2019 New version 1.1
  • September 28, 2019 Price increase: $15.99 -> $22.99
  • October 09, 2019 New version 1.2
  • July 15, 2020 Price increase: $22.99 -> $31.99
  • September 16, 2023 New version 1.3

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