Doomsday calculator memory
Joao Vianna Education iPhoneiPadiPod touch
Doomsday calculator memory is a free Education app for iPhone and iPad by Joao Vianna. Rated 5.0/5 from 1 ratings. Requires iOS 17.6. Updated March 9, 2025.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 4 MB
- Age 4+
- Updated
- Mar 9
- 2025 · v2.3
Screenshots
About Doomsday calculator memory
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.
What’s new
Version 2.3 · Updated March 9, 2025
Now you can control speech voices speed on English, Portuguese, German, Italy and Chinese.
App privacy
The developer, Joao Vianna, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Doomsday calculator memory
Looking for apps like Doomsday calculator memory? Here are 6 similar apps on the App Store. The highest rated is Psalter (5.0/5), and 4 of the 6 are free to download.
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Doomsday Method | Mental Game
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Day of Week Pro
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Psalter
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Doomsday Practice
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sankalp-kanstiya-player
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Math Solver Pro
| App | Rating | Price | Last updated |
|---|---|---|---|
| Doomsday calculator memory | 5.0 / 5 (1 rating) | Free | March 9, 2025 |
| Doomsday Method | Mental Game | 4.7 / 5 (3) | Free | Sep 30, 2026 |
| Day of Week Pro | 4.0 / 5 (3) | Free | Jul 17, 2026 |
| Psalter | 5.0 / 5 (3) | 0.99 USD | May 20, 2026 |
| Doomsday Practice | 5.0 / 5 (1) | Free | Apr 27, 2026 |
| sankalp-kanstiya-player | – | Free | Oct 1, 2024 |
| Math Solver Pro | – | 4.99 USD | Sep 3, 2026 |