Crazy Hard Fast Math Reaction vs Fast MathB
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Crazy Hard Fast Math Reaction
Test your math skills with an infinite number of calculations. Choose your difficulty and race against the clock to achieve a high score. Compete with friends on multiple leaderboards to prove your math prowess.
- Infinite math calculations
- Two-button right/wrong input
- Timed challenges
- Difficulty options (easy, normal, hard)
- Multiple leaderboards
- Multiplayer competition
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Crazy Hard Math Challenge - You get it? An infinite number of math calculations await you, 2 buttons, right or wrong, and a very short amount of time. Race the clock to get a high score, take the easy, normal or hard option, it's your choice, but with 3 different leaderboards, why not prove to your friends who is the king of math? It really doesn't get much harder than this! Are you up for the challenge?
Fast MathB
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Improve your mental math skills with our fast-paced and addictive math game! Solve a variety of math problems as quickly as possible to earn points and level up. With increasing difficulty levels and a variety of game modes, our app will challenge you to become a math master in no time. Download now and start improving your math skills while having fun!
Screenshots
Verdict
The clearest difference is ads: Fast MathB at none against Crazy Hard Fast Math Reaction's shown. Fast MathB also leads on update cadence (every 6 days vs every 11 months). On price, in-app purchases, 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. Crazy Hard Fast Math Reaction sells 1 one-off in-app purchase and Fast MathB sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Crazy Hard Fast Math Reaction ships an update every 11 months, Fast MathB every 6 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | Crazy Hard Fast Math Reaction | Fast MathB |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (29 ratings) — better | — |
| Positive reviews | 27.3% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Every 11 months | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 153 MB |
| Age rating | 4+ | 17+ |
| Developer | Fragranze Games Ltd | Salih Hamouda |
In-app purchases
Crazy Hard Fast Math Reaction
- Remove Ads$1.99
Fast MathB
- pack1$0.99
- vip1$0.99
- pack3$2.99
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- vip3$2.99
- pack5$4.99
Questions
Is Crazy Hard Fast Math Reaction free?
Is Fast MathB free?
Do Crazy Hard Fast Math Reaction or Fast MathB have ads?
Which is updated more often, Crazy Hard Fast Math Reaction or Fast MathB?
Other comparisons
