# O vs Shape Rhythm

The clearest difference is update cadence: O at weekly against Shape Rhythm's every 7 months. O also leads on rating (4.6 vs 4.2) and review sentiment (72% vs 48%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. O sells 1 one-off in-app purchase and Shape Rhythm sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

O holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 191 and 195 respectively. Written reviews point the same way: 72% of O's written reviews are positive against 48% of Shape Rhythm's.

O ships an update weekly, Shape Rhythm every 7 months. Both last shipped on September 30, 2026.

## The numbers

| Metric | O | Shape Rhythm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (191 ratings)](https://appshunter.io/ios/app/o-void/id6449623550/reviews)** | [4.2 (195 ratings)](https://appshunter.io/ios/app/shape-rhythm/id6478543498/reviews) |
| Number of ratings | 191 | **195** |
| Positive reviews | **72.4% of reviews** | 48.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 43 MB | 206 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Gearhead Games ApS](https://appshunter.io/developer/1163605497) | [Lam Dao Thi Thanh](https://appshunter.io/developer/1341395414) |

## What reviewers say

### O

[App page](https://appshunter.io/ios/app/o-void/id6449623550)

Navigate a spinning circle through challenging obstacles in this minimal action runner. Levels dynamically change direction and flip, testing your reflexes. Compete globally and unlock customizations.

**Highlights:** One-tap gameplay, Mind-bending geometry, Randomly generated levels, Chiptune soundtrack, Unlockable customizations, Global leaderboards

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |

**What reviewers like**

- 🎶 Great music/soundtrack
- 🎮 Challenging and satisfying gameplay
- 💡 Innovative game mechanics
- 💯 High skill ceiling/mastery
- ✨ Simple yet addictive

**What reviewers complain about**

- 😵 Dizzying/makes users sick
- 🥵 Extremely difficult/too hard
- ⏳ Too short/lacks content
- 😵‍💫 Trippy and weird visuals
- 🤢 Makes users feel sick

**Reported bugs**

- Spinning makes users sick
- Obstacles in later levels require luck/insane reaction time
- Effect does not disappear properly in penultimate level
- Game is glitchy, laggy, and unresponsive
- Revive ad doesn't work/can't close ad

**Requested features**

- Add more levels
- New dimension/different gameplay principle
- User level creator
- More beats/music synchronization
- Option to turn down color brightness


### Shape Rhythm

[App page](https://appshunter.io/ios/app/shape-rhythm/id6478543498)

Experience a unique co-op musical bullet hell game. Dance through chaotic scenarios, avoiding dynamic shapes while grooving to catchy beats. Play solo or team up with friends for an exhilarating rhythm and mayhem fusion.

**Highlights:** Cooperative musical bullet hell, Rhythm game fusion, Intense and accessible gameplay, Cooperative story mode, Challenge runs, Mesmerizing soundtrack and visuals, Online and split-screen co-op

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 🎶 Great music and beats
- 🎮 Fun gameplay
- 📱 Good mobile port of JSAB
- 👍 Well-made and entertaining
- ✨ Cool graphics

**What reviewers complain about**

-  광고 Excessive ads
- 📉 Poorly made
- ⚠️ Unpredictable attacks
- 😵 Annoying ads during gameplay
- 🗑️ Bootleg/Rip-off game

**Reported bugs**

- Keeps crashing
- Game crashes occasionally
- Game freezes after ad
- Ad turns off all sounds
- Game bugs and doesn't let you play

**Requested features**

- Add more songs
- Add story mode and bosses
- Extend 'together forever'
- Make it a bit easier
- Show which is the boss and which is normal


## Frequently asked questions

### Is O free?

O is free to download, with in-app purchases available.

### Is Shape Rhythm free?

Shape Rhythm is free to download, with in-app purchases available.

### Which has better reviews, O or Shape Rhythm?

O is rated higher. O averages 4.6 out of 5 from 191 ratings, while Shape Rhythm averages 4.2 from 195 ratings.

### Do O or Shape Rhythm have ads?

Both O and Shape Rhythm show ads.

### Which is updated more often, O or Shape Rhythm?

O ships an update weekly, and Shape Rhythm every 7 months. Most recently, O was updated on September 30, 2026 and Shape Rhythm on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*