# AUX B vs OCO

The clearest difference is ads: AUX B at none against OCO's shown. AUX B also leads on review sentiment (89% vs 73%) and rating (4.8 vs 4.6). OCO's advantage is update cadence (every 5 weeks vs every 4 months) and ratings volume (2.4K vs 293). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. AUX B sells 2 one-off in-app purchases and OCO sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

AUX B holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: OCO has 2.4K ratings behind it against 293, so its average is the more settled of the two. Written reviews point the same way: 89% of AUX B's written reviews are positive against 73% of OCO's.

AUX B ships an update every 4 months, OCO every 5 weeks. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | AUX B | OCO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (293 ratings)](https://appshunter.io/ios/app/aux-b/id966167433/reviews)** | [4.6 (2.4K ratings)](https://appshunter.io/ios/app/oco/id1030437345/reviews) |
| Number of ratings | 293 | **2.4K** |
| Positive reviews | **89.0% of reviews** | 73.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 53 MB | 113 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Schnellmann](https://appshunter.io/developer/566964130) | [SPECTRUM48 LIMITED](https://appshunter.io/developer/896496053) |

## What reviewers say

### AUX B

[App page](https://appshunter.io/ios/app/aux-b/id966167433)

Connect audio cables to complete circuits and bring music to life. Solve increasingly challenging puzzles with vibrant visuals and rhythmic gameplay. This game is designed for puzzle enthusiasts and music fans.

**Highlights:** Audio cable connection puzzles, Rhythmic gameplay, Vibrant visuals, 40 free levels, Intuitive controls

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation | $1.99 | one-time |
| AUX B Unlimited | $2.99 | one-time |

**What reviewers like**

- 🚀 Addictive and challenging puzzles
- 👍 Unique and innovative gameplay
- 👍 Great for audio engineers and sound enthusiasts
- 👍 Visually appealing and charming design

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 💤 Levels can get repetitive and easy
- 🔍 Lack of clear instructions or tutorials

**Reported bugs**

- Level 24 reported as impossible to complete
- Server connection issues when submitting competition entry

**Requested features**

- More levels and content updates
- Ability to skip or retry specific levels
- Additional cable types and connection methods


### OCO

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

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


## Frequently asked questions

### Is AUX B free?

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

### Is OCO free?

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

### Which has better reviews, AUX B or OCO?

AUX B is rated higher. AUX B averages 4.8 out of 5 from 293 ratings, while OCO averages 4.6 from 2.4K ratings.

### Do AUX B or OCO have ads?

OCO shows ads; AUX B does not.

### Which is updated more often, AUX B or OCO?

AUX B ships an update every 4 months, and OCO every 5 weeks. Most recently, AUX B was updated on October 7, 2026 and OCO on October 15, 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.*