# Black Room vs Fish IO

The clearest difference is rating: Fish IO at 4.2 against Black Room's 3.0. Fish IO also leads on review sentiment (40% vs 0%) and in-app purchases (none vs 4). Black Room's advantage is ads (none vs shown) and iOS requirement (8.0 vs 13.0). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. Black Room sells 4 one-off in-app purchases. Fish IO asks for nothing beyond the download.

Fish IO holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: Fish IO has 719 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Black Room's written reviews are positive against 40% of Fish IO's.

Black Room ships an update monthly, Fish IO every 5 weeks. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Black Room | Fish IO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/black-room-hardest-challenge-avoid-the-objects/id1159607413/reviews) | **[4.2 (719 ratings)](https://appshunter.io/ios/app/fish-io-be-the-king/id1669416397/reviews)** |
| Number of ratings | 3 | **719** |
| Positive reviews | 0.0% of reviews | **40.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 21 MB | 208 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pawana Chatwaranon](https://appshunter.io/developer/1281660630) | [Brave HK Limited](https://appshunter.io/developer/1833825255) |

## What reviewers say

### Black Room

[App page](https://appshunter.io/ios/app/black-room-hardest-challenge-avoid-the-objects/id1159607413)

Navigate a white box through a dark environment, avoiding moving obstacles. Collect keys to escape the room. Features simple graphics, easy tap controls, and a ranking system to compete with friends.

**Highlights:** Avoid moving objects, Collect keys to escape, Simple graphics, Ranking system, Easy tap controls

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads Black Rooms $0.99 | $0.99 | one-time |
| 2 Shields $0.99 | $0.99 | one-time |
| 5 shields $1.99 | $1.99 | one-time |
| 10 Shields $2.99 | $2.99 | one-time |


### Fish IO

[App page](https://appshunter.io/ios/app/fish-io-be-the-king/id1669416397)

Engage in a thrilling multiplayer arena as a shark with a sword. Hunt other fish, collect trophies, and consume sushi to grow stronger. Dominate the ocean and become the king of the sea in this free-to-play IO game.

**Highlights:** Play as a shark with a sword, Multiplayer arena combat, Hunt prey and avoid other players, Collect sushi for energy and fish heads as trophies, Multiple fish and weapon types, Beautiful ocean themes

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

**In-app purchases:** none

**What reviewers like**

- ⭐️ Excellent game
- 🥳 Fun and engaging
- 👍 Good game design
- 🤝 Developer interaction

**What reviewers complain about**

- 💢 Too many ads
- 🤯 Frustrating ad experience
- 🤖 Unbalanced gameplay
- 🤔 Inappropriate ads

**Reported bugs**

- Frequent crashes
- Glitches and bugs
- Unresponsive controls

**Requested features**

- Offline mode
- More challenging levels
- Customizable controls
- Reduce ads or add paid option


## Frequently asked questions

### Is Black Room free?

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

### Is Fish IO free?

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

### Which has better reviews, Black Room or Fish IO?

Fish IO is rated higher. Black Room averages 3.0 out of 5 from 3 ratings, while Fish IO averages 4.2 from 719 ratings.

### Do Black Room or Fish IO have ads?

Fish IO shows ads; Black Room does not.

### Which is updated more often, Black Room or Fish IO?

Black Room ships an update monthly, and Fish IO every 5 weeks. Most recently, Black Room was updated on June 1, 2026 and Fish IO on September 24, 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.*