# 21 Ball Challenge

> 21 Ball Challenge (iPhone/iPad app by AI Workforce Solutions.)

- Source: https://appshunter.io/ios/app/21-ball-challenge/id6791639972 (this page in markdown: same URL + `.md`)
- Developer: [AI Workforce Solutions](https://appshunter.io/developer/6791639974)
- Category: Games, Board, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 64 MB
- Languages: American English
- Released: 2026-07-23
- Data updated: 2026-08-02
- User reviews in markdown: https://appshunter.io/ios/app/21-ball-challenge/id6791639972/reviews.md

## What is 21 Ball Challenge?

A deceptively simple puzzle that's fiendishly hard to master.

Twenty-one numbered balls sit on a looping track. Your goal is simple: put them in order, 1 to 21. But there are only two moves — slide the whole loop around, or flip the four balls trapped under the turntable. Getting every ball into its place takes planning, patience, and a bit of clever thinking.

Easy to learn in seconds. Genuinely satisfying to solve. Impossible to put down.

HOW TO PLAY
• Slide: drag the track (or tap Left / Right) to rotate every ball around the loop together.
• Rotate: flip the four balls inside the yellow turntable to re-order them.
• Solve the loop 1–21 in as few moves and as little time as you can.

FEATURES
• One-more-go puzzle action that's perfect for quick breaks
• Track your best moves, best time, and averages over every game
• Your progress is saved automatically — pick up right where you left off
• Smooth, colorful, and relaxing
• 100% offline — no internet, no account, no sign-up
• No ads, no in-app purchases, no tracking
• Free

Whether you're a puzzle veteran or just looking to unwind, 21 Ball Challenge will keep you coming back to beat your personal best.

Can you solve it in the fewest moves?

A free game from AI Workforce Solutions.


## Version history (last 1 release)

### 1.0 — 2026-07-23

No release notes.

## More apps by AI Workforce Solutions

- [AIWS Mind Reader](https://appshunter.io/ios/app/aiws-mind-reader/id6791643139)
- [MindShuffle](https://appshunter.io/ios/app/mindshuffle/id6791644159)

All apps by AI Workforce Solutions: https://appshunter.io/developer/6791639974

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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 2026-08-02.*