# OCO vs ston

The clearest difference is review sentiment: OCO at 73% against ston's 35%. OCO also leads on rating (4.6 vs 4.3) and ratings volume (2.4K vs 128). ston's advantage is in-app purchases (none vs 8) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. OCO sells 8 one-off in-app purchases. ston asks for nothing beyond the download.

OCO holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: OCO has 2.4K ratings behind it against 128, so its average is the more settled of the two. Written reviews point the same way: 73% of OCO's written reviews are positive against 35% of ston's.

OCO ships an update every 5 weeks, ston every 3 weeks. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | OCO | ston |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.4K ratings)](https://appshunter.io/ios/app/oco/id1030437345/reviews)** | [4.3 (128 ratings)](https://appshunter.io/ios/app/ston/id1238293204/reviews) |
| Number of ratings | **2.4K** | 128 |
| Positive reviews | **73.0% of reviews** | 35.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#209** | — |
| Size | 113 MB | 72 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SPECTRUM48 LIMITED](https://appshunter.io/developer/896496053) | [Flat Games](https://appshunter.io/developer/1645533424) |

## What reviewers say

### OCO

[App page](https://appshunter.io/ios/app/oco/id1030437345)

**Currently charting:** #209 Top Free · Music (US App Store)

Engage in a captivating one-touch puzzle-platformer with over 7000 levels. Master simple controls to navigate challenging environments, create your own levels, and enjoy a unique audio-visual experience. Compete in daily challenges and strive for perfect solutions.

**Highlights:** Simple one-touch controls, Over 7000 challenging puzzles, Level editor and sharing system, Daily challenges, Minimalist design, Procedurally-generated soundtrack

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NO ADS | Free | one-time |
| x 2000 bits | $0.99 | one-time |
| x 5000 bits | $0.99 | one-time |
| Remove ads | $1.99 | one-time |
| x 8000 bits | $2.99 | one-time |
| OCO pro | $2.99 | one-time |
| x 30000 bits | $4.99 | one-time |
| x 100000 bits | $9.99 | one-time |

**What reviewers like**

- 👍 Smooth gameplay
- 🎨 Visually appealing
- 🎵 Great music/sound design
- 🧠 Challenging puzzles
- 🔓 Minimal ads

**What reviewers complain about**

- 🐛 Frequent crashes/bugs
- 💰 Paywalls/in-app purchases
- 🤢 Can cause motion sickness
- 🔍 Restart level button hard to access
- 🕰️ Perfect time scores don't make sense

**Reported bugs**

- Game crashes on startup after updates
- Slow mode issue prevents level uploads
- Levels sometimes can't be opened
- Losing progress/data after updates

**Requested features**

- Add different beat/music options
- Allow liking levels without completing them
- Improve level saving/loading
- Add more block types (traps, flippers, etc.)
- Bring back online features


### ston

[App page](https://appshunter.io/ios/app/ston/id1238293204)

This is a minimalist puzzle game with a unique design. It challenges your brain with mind-blowing levels and no time or move limits, allowing for a relaxing experience.

**Highlights:** Mind-blowing levels, Brain challenge, Minimalistic design, Relaxing music and sounds, No time or move limits

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and enjoyable gameplay
- 💡 Interesting concept
- 👍 Nice design
- 👍 Good for learning
- 👍 Good customer care

**What reviewers complain about**

- ❌ Excessive advertisements
- ❌ Ads interrupt gameplay
- ❌ Ads are too long
- ❌ Ads don't have a close button
- ❌ Game crashes frequently

**Reported bugs**

- Ads don't have a close button
- Game crashes on startup
- Game doesn't open
- Slow movement
- Level 74 freezes

**Requested features**

- Add a timer for ads
- Put ads on a cooldown
- Add hints for difficult levels
- Add a level editor
- Add an online mode


## Frequently asked questions

### Is OCO free?

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

### Is ston free?

ston is free to download, with no in-app purchases.

### Which has better reviews, OCO or ston?

OCO is rated higher. OCO averages 4.6 out of 5 from 2.4K ratings, while ston averages 4.3 from 128 ratings.

### Do OCO or ston have ads?

OCO shows ads; ston does not.

### Which is updated more often, OCO or ston?

OCO ships an update every 5 weeks, and ston every 3 weeks. Most recently, OCO was updated on October 2, 2026 and ston on September 28, 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.*