Date Trainer
by Jubbly Pty Ltd more by this developer →
#429,038 of 719,896 by ratings on Apple · #39,148 of 72,290 in Education
First seen by this census 09/05/2026 — the store does not publish a creation date
Last updated 02/06/2022
Tracked since 09/05/2026
Compare with another extension
Category: Education
Description
Based on the Doomsday Algorithm developed by the great Professor John Conway, Date Trainer allows you to hone your skills as you wow your friends by successfully naming the day of the week for any date from 1800 to 2200.
Beat your best time.
Check your method against the calculated values the app presents.
Save your own mnemonic for special dates in the Doomsday List.
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Growth
Change in ratings, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | Not enough history yet | |||
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Tracking since 09/05/2026. History accumulates as changes are observed — check back soon.