# One Two BOOM — Fast Number Reaction Game

> Fast Number Reaction Game (iPhone/iPad app by Potato Battery Games UG (haftungsbeschraenkt).)

- Source: https://appshunter.io/ios/app/one-two-boom/id6758585212 (this page in markdown: same URL + `.md`)
- Developer: [Potato Battery Games UG (haftungsbeschraenkt)](https://appshunter.io/developer/1845590134)
- Category: Games, Entertainment, Casual, Trivia
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 42 MB
- Languages: American English
- Released: 2026-02-18
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/one-two-boom/id6758585212/reviews.md

## What is One Two BOOM?

Can you count to 100 without making a mistake?

One Two BOOM is a fast-paced counting game that puts your reflexes and mental math to the test. Tap +1 to count up — but when the number matches the rule, you must hit BOOM before time runs out!

Sounds easy? The timer gets faster with every number. One wrong tap and it's game over.

HOW TO PLAY
• Tap +1 to count up: 1, 2, ...
• Hit BOOM for special numbers (divisible by 3, ending with 3, primes, and more)
• React BEFORE the number appears to build combos
• Beat your high score and climb the levels

6 GAME MODES
• Classic — BOOM for every third number. The one that started it all.
• Tricky — Only numbers ending with 3 count. Harder than you think.
• Fizz Buzz — Three buttons, three rules. The ultimate brain workout.
• Prime Time — Spot the prime numbers under pressure.
• Chaos — The rule changes every 20 numbers. Stay sharp.
• Zen — No timer. Perfect for practice and warming up.

COMBOS & REWARDS
React fast enough and you'll trigger combos — earn score multipliers, bonus coins, shields, and extra time. Chain long streaks to unlock the biggest rewards.

DAILY CHALLENGES
Three new challenges every day. Complete them all for bonus coins and bragging rights.

CUSTOMIZE YOUR STYLE
Unlock bomb skins and explosion effects in the shop. Play your way with Dynamite, Nukes, Rockets, and more.

POWER-UPS
• Second Chance — One extra life when you need it most
• Score 2x — Double your points for a run
• Double Coins — Earn twice the coins per tap
• Extra Time — More seconds to think

Quick to learn. Impossible to master. Just one more game...


## Version history (last 1 release)

### 1.0 — 2026-02-18

No release notes.

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## More apps by Potato Battery Games UG (haftungsbeschraenkt)

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All apps by Potato Battery Games UG (haftungsbeschraenkt): https://appshunter.io/developer/1845590134

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*