Number Boom Demo! vs Chess.clock
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Number Boom Demo!
Test your math skills by solving equations before time runs out. This game offers brain exercises and an endless mode to challenge your calculation speed and accuracy.
- Math skill training
- Timed equation solving
- Brain exercises
- Endless mode
- Single difficulty level
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"Number Boom" is the best way to train your math skill! Calculate a value of expression before bomb will blow up! Features in free version: - one difficulty level. - great exercises for brains. - endless mode.
Chess.clock
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Take your chess games to the next level with the chess clock app. Precision timing for beginners and grandmasters alike! Features: Easy to use: An intuitive design that gets you straight into the game. Customizable timers: Choose from classic modes (e.g., Fischer, Bronstein, or delay) or create your own. Elegant design: A minimalist interface with clear displays – perfect for blitz, rapid, or tournament games. Sound and vibration feedback: Stay on top of the clock with every second. Dark mode support: Perfect for long evening games. This chess clock app is built for chess enthusiasts – simple enough for beginners, yet flexible enough for professionals. Download the app now and elevate your game!
Screenshots
Verdict
The clearest difference is iOS requirement: Number Boom Demo! at 10.0 against Chess.clock's 26.2. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Number Boom Demo! ships an update every 6 months, Chess.clock every 3 months. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.
| Parameter | Number Boom Demo! | Chess.clock |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 14 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Kremliakov | Lukas Paul Hering |
In-app purchases
Number Boom Demo!
No in-app purchases
Chess.clock
No in-app purchases
Questions
Is Number Boom Demo! free?
Is Chess.clock free?
Do Number Boom Demo! or Chess.clock have ads?
Which is updated more often, Number Boom Demo! or Chess.clock?
Other comparisons
