Crazing Math vs WHERE'S NUMBER!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Crazing Math
A fast-paced game that challenges your mental math abilities. Select three numbers that sum to a target value within a time limit. The challenge increases as the timer counts down, requiring quick thinking and rapid calculations.
- Time-based challenges
- Select three numbers to sum
- Increasing difficulty
- Random number generation
- High score tracking
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Test Your Speed and Math Skills! How To Play: • You have a limited time to select three numbers from below that add up to the number on the balloon above. • The clock is ticking! As time decreases, you’ll need to think and act faster. • The numbers appear randomly, keeping you on your toes! Are you ready for the challenge? Play now and aim for the highest score!
WHERE'S NUMBER!
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NEXT You can clear the game by tapping the number displayed in "NEXT" and erasing everything. It is a game that challenges how fast you can clear. LIMIT If you clear it within the time limit, you will advance to the next stage. GAME MODE NORMAL： The numbers are arranged in ascending order, so it is easy to find the numbers. HARD：The numbers are arranged randomly, so it is difficult to find the numbers. If you clear "NORMAL", you will be able to press the "HARD" button.
Screenshots
Verdict
The clearest difference is in-app purchases: WHERE'S NUMBER! at none against Crazing Math's 1. WHERE'S NUMBER! also leads on ads (none vs shown). Crazing Math's advantage is update cadence (every 4 months vs every 25 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Crazing Math sells 1 one-off in-app purchase. WHERE'S NUMBER! asks for nothing beyond the download.
Crazing Math ships an update every 4 months, WHERE'S NUMBER! every 25 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.
| Parameter | Crazing Math | WHERE'S NUMBER! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (8 ratings) — better | — |
| Positive reviews | 96.6% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 4 months — better | Every 25 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 18 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Cuong Du Duc | mieko kamiya |
In-app purchases
Crazing Math
- Remove Ads$4.99
WHERE'S NUMBER!
No in-app purchases
Questions
Is Crazing Math free?
Is WHERE'S NUMBER! free?
Do Crazing Math or WHERE'S NUMBER! have ads?
Which is updated more often, Crazing Math or WHERE'S NUMBER!?
Other comparisons
