Doomsday calculator memory 4+

Test your hability to dates

Joao Vianna

Designed for iPad

    • Free

Screenshots

Description

Great app to help you to memorize doomsday calendar

In 1970, British mathematician John Conway devised a way to quickly calculate the weekday of any given date without the help of calculators, computers, or calendars. This app helps you to practice and memorize.

App Privacy

The developer, Joao Vianna, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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