# PrimeRush Battle

> PrimeRush Battle (iPhone/iPad app by tostring.)

- Source: https://appshunter.io/ios/app/primerush-battle/id6780195166 (this page in markdown: same URL + `.md`)
- Developer: [tostring](https://appshunter.io/developer/547098187)
- Category: Games, Education, Board, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 26.5 · 15 MB
- Languages: American English, Japanese
- Released: 2026-06-25
- Data updated: 2026-08-20
- User reviews in markdown: https://appshunter.io/ios/app/primerush-battle/id6780195166/reviews.md

## What is PrimeRush Battle?

Prime Rush is a fast-paced number game where you find prime numbers as quickly as possible.

Choose from nine difficulty combinations featuring different grid sizes and number ranges. Find every prime number across five rounds and aim for your fastest completion time.

Be careful—selecting a non-prime number adds a one-second penalty!

Features

• 3×3, 4×4, and 5×5 grids
• One-to-four-digit numbers
• Nine difficulty combinations
• Five-round time trials
• Best-time records for each difficulty
• Randomized challenges
• Train your focus and number skills

Spot the primes and set a new record!


## Version history (last 2 releases)

### 1.1 — 2026-07-09

Adjustment of added time upon failure
Addition of game sounds

### 1.0 — 2026-06-25

No release notes.

## More apps by tostring

- [numbersViewer](https://appshunter.io/ios/app/numbersviewer/id554503928)
- [babyKarte](https://appshunter.io/ios/app/babykarte/id994925626)
- [BabyDays](https://appshunter.io/ios/app/babydays/id1238347446)

All apps by tostring: https://appshunter.io/developer/547098187

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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 2026-08-20.*