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Bonus offers are promotional and supplied by third-party partners. Eligibility, amounts and wagering rules are set on their pages. 18+ only. Play responsibly. The estimation game itself does not require any bonus.
Mechanics
Rules of the Arena: how a round is won or lost
No multiple choice. No safe guesses. You commit to a range, and the math judges your confidence.
Inside one round
- Each daily round holds 8 questions from mixed categories.
- Questions ask for magnitudes, such as the bytes in a two-hour film in high definition.
- You answer with a low bound and a high bound, not one lucky number.
- Everyone gets the same set on the same day, so scores are comparable.
- Finish and you get points plus a verdict on every single question.
What the scoreboard tracks
- Ranges caught: a result like 5/8 means five ranges contained the truth.
- Median width: the narrower your ranges, the sharper you are. 3.4 decades is the sample to beat.
- Hit rate: if your 70% ranges catch the truth 62% of the time, the app shows it plainly.
- Streak: consecutive days played, shown on the Today screen.
- Retry button: replay only the questions you missed, such as the 3 you blew.
Arsenal
Six weapons against overconfidence
Everything below is on screen inside the app today. Nothing here is a roadmap promise.
Range bets
Set a minimum and a maximum for each question. Wide ranges are safe but cost you width. Tight ranges pay off only if they hold the truth.
One daily set for everyone
The Today screen shows the date and the same 8 questions for every player. When the round is done it reads DONE, and you can still play it again.
Calibration meter
A ring shows your hit rate against the confidence you claimed. It tells you whether to widen, narrow or keep your ranges.
Factor calculator
Break a monster question into factors. Households in the city, times households with a piano, divided by pianos one tuner serves a year. The running product updates as you type.
Error autopsy
See where the miss came from, factor by factor. In the sample, two factors cost 9% each while one cost 81%. Tweak that one and watch the result move.
Round history
Last Rounds keeps your scores in cards on the home screen. A bar chart per round shows how far off each of the 8 questions landed.
Technical analysis
Under the laurels: how Wisdom of Athhena measures you
Distance is counted in decades, meaning powers of ten. If your estimate is 2 x 10^1 and the true answer is 1.2 x 10^2, the app reports 0.8 decades apart and labels it within one order of magnitude. On the round chart, a full bar means you were three orders of magnitude out, so shorter bars win.
The Build tab turns a hard question into a chain of factors. Each factor has a label, a value and an operation, either multiply or divide. 400000 x 0.05 / 1000 gives 20, shown as 2 x 10^1 with the plain-language note "Sitting on the 10^1 rung". Tap Submit my estimate to lock it in.
After a round you see points, ranges caught and median width in decades. The Today screen adds your hit rate for the confidence level you chose. That is the real test: an honest 70% range should catch the truth about 70% of the time, no more and no less.
Verified Specifications
| Platform | Android |
|---|---|
| Genre | Estimation and calibration game |
| Round format | 8 questions, mixed categories |
| Cadence | Daily, same set for everyone |
| Answer type | Low and high range |
| Distance unit | Decades (powers of 10) |
| Result metrics | Points, ranges caught, median width, hit rate |
| Build operations | Multiply and divide factors |
| Navigation | Today, Rounds, Build, Settings |
| Developer | Not shown in app screens |
| Version and size | Listed on the store page |
| Language | English |
| Page checked | 13.11.2026 |
Today's eight questions will not wait for you
Android. Price and file size are shown on the store page. Install, open, and the golden medallion loads your first round in moments. Set your ranges before the set rotates.
Download Wisdom of AthhenaRequires an Android device. Check the store listing for age rating, ads disclosure and in-app purchase details. Bonus offers above are third-party, 18+ only.