Calendar-Trainer app for iPhone and iPad

4.2 ( 5472 ratings )

Entertainment Education
Developer: Martin Eisele

31.99 USD

Current version: 1.3, last update: 1 year ago
First release : 19 Oct 2017
App size: 8.65 Mb

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.