# Circle 0

> Circle 0 (iPhone/iPad app by Ventura Educational Systems.)

- Source: https://appshunter.io/ios/app/circle-0/id960057465 (this page in markdown: same URL + `.md`)
- Developer: [Ventura Educational Systems](https://appshunter.io/developer/371324172)
- Category: Education, Games, Puzzle
- Price: $0.99
- Age rating: 4+
- Requires: iOS 12.0 · 8 MB
- Languages: English
- Released: 2015-02-05
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/circle-0/id960057465/reviews.md

## What is Circle 0?

Circle 0 is a challenging puzzle game where the object is to arrange the numbers so that the sum of each circle is 0. Circle 0 provides practice with the addition of integers.  Numbers range from -6 to +7.  Puzzles are randomly generated and so the game can be played over and over again providing hours of fun. If you like soduku or magic square puzzles then you will love Circle 0. 

Special features make using Circle 0 fun:

1. Slide numbers into place to solve puzzle.

2. Random puzzles automatically generated.

3. Sound effects. 

4. Available for exclusively for iPad.


## Version history (last 4 releases)

### 2.1 — 2021-05-13

This version provides an update for iPadOS. It also includes screenshots for iPad Pro (3rd Gen) 12.9" Display. This version has been updated to recommended settings.  The “English, deprecated” localization has been migrated to “English” which is recommended for all apps. The metadata regarding the privacy for this app has been updated.  No data is collected by this app.

### 2.0 — 2018-04-09

This app has been updated by Apple to display the Apple Watch app icon.

This version is designed for iOS 11.0.

### 1.2 — 2015-02-17

Minor improvements to user interface.

### 1.0 — 2015-02-05

No release notes.

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## More apps by Ventura Educational Systems

- [Alphabet Animals](https://appshunter.io/ios/app/alphabet-animals/id371324169)
- [Colors & Shapes](https://appshunter.io/ios/app/colors-and-shapes/id375684455)
- [Numbers 123](https://appshunter.io/ios/app/numbers-123/id381591365)
- [Addition Facts](https://appshunter.io/ios/app/addition-facts/id385473597)
- [Fractions: The Whole Story](https://appshunter.io/ios/app/fractions-the-whole-story/id393882237)
- [Plexers](https://appshunter.io/ios/app/plexers/id411518808)

All apps by Ventura Educational Systems: https://appshunter.io/developer/371324172

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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 2026-05-17.*