Black Room vs Fish IO
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Black Room
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.
- Avoid moving objects
- Collect keys to escape
- Simple graphics
- Ranking system
- Easy tap controls
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Don't Hit The Moving Objects In the black room. You will don't see any thing. But you have white box. You must move the white box. Keep the key out this room !! Free now. Try it yourself !! Features !! - Simple graphics - Ranking with your friends. - Easy Control How to play - Just Tap to move
Fish IO
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.
- 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
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Fish IO is the free IO game where you play as a shark with a sword. Join a fish multiplayer arena with beautiful but deadly tusks and hunt your prey while avoiding the blade of other players. Consume sushi for energy, gather fish heads like trophies, rule the sea, and you will be crowned king of the sea. HOW TO PLAY - Choose your fish and your weapon to be ready to fight - Move around with the joystick - Look around and eliminate other fish in the ocean by attacking them from the sides - Be careful because other players can come and kill you anytime - Eat food and other objects to gain boost and a higher score FEATURES - Many different kinds of fish and weapon to help your fish move faster, rush faster and gain shields - Beautiful ocean world with 4 spectacular ocean themes. - Relaxing soundtrack - Completely FREE to play Join Fish Go.io to fight with other fish to become the champion!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Black Room | Fish IO |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) | 4.2 (719 ratings) — better |
| Positive reviews | 0.0% of reviews | 40.0% of reviews — better |
| Number of ratings | 3 | 719 — better |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 21 MB | 208 MB |
| Age rating | 4+ | 4+ |
| Developer | Pawana Chatwaranon | Brave HK Limited |
Customer experience
Black Room
Fish IO
Bugs and requests
Black Room
Not enough reviews yet to summarise bugs or requests.
Fish IO
Reported bugs
3 issues- Frequent crashes
- Glitches and bugs
- Unresponsive controls
Requested features
4 requests- Offline mode
- More challenging levels
- Customizable controls
- Reduce ads or add paid option
In-app purchases
Black Room
- Remove Ads Black Rooms $0.99$0.99
- 2 Shields $0.99$0.99
- 5 shields $1.99$1.99
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- 10 Shields $2.99$2.99
Fish IO
No in-app purchases
