Fish Evolution vs Monster FishIO
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Fish Evolution
Navigate the deep sea as a small fish, eating smaller prey to grow and evolve. Avoid larger predators and use power-ups to survive and become the ocean's overlord in this engaging casual game.
- Evolve from clownfish to sharks and behemoths
- Eat smaller fish to grow
- Avoid larger predators
- Free to play
- New themed skins
- Powerful prop effects
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Fish Evolution is a casual mobile game for passing levels; you are a little fish, lost in the deep sea, and there are many ferocious sea beasts here. You have to do everything you can to survive, it is not easy. In this survival game you need to eat fish smaller than you to grow up, but at the same time don’t be eaten, be careful of fish larger than you and stronger creatures. Features: • Players can continue to evolve, from clownfish to sharks and even ancient behemoths • Free to play games • Free new themed skins • Exciting gameplay • Powerful prop effects to help you become the overlord of the ocean How to play: • Evolve yourself by eating fish smaller than you • Watch out for fish bigger than you, they can eat you
Monster FishIO
Engage in a thrilling underwater battle for survival. Grow by consuming smaller fish and avoid larger predators to become the ultimate king of the sea. Upgrade your fish and weapons to dominate the ocean.
- Eat smaller fish to grow
- Avoid larger predators
- Upgrade fish and weapons
- Dominate the sea
- Compete on leaderboards
- Collect rewards
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Let's fight now in Monster FishIO: Big Eat Small. Game is already on! Hide and eat fishes all in the blue ocean to become the powerful King of the sea! Deep in the ocean, a battle for survival between fishes is taking place. Fishes try to hide from larger creatures and attack smaller fish to prolong their life. To become the king of the blue ocean, you must be the biggest. Attack, shoot fish and cook other fish to become bigger. In the end, you get to eat the big boss fish. Dominate the sea and become the strongest hunter. Expand your fishing grounds and crush all opponents! TIPS TO BECOME MONSTER FISHIO KING - Attack and eat smaller fish to grow bigger and stronger. - Try not to be destroyed by bigger fish and be the last survivor in the sea battle - Collect your rewards after each match to upgrade your fish and sword. - Eliminate other players by stabbing them from behind or from the side. - Use the revise button to get more fighting chances. Top the leaderboards, earn badges and share your scores to show everyone who the real beast is! Come and become the legend of the sea by downloading our game Monster FishIO: Big Eat Small
Screenshots
Verdict
The clearest difference is review sentiment: Fish Evolution at 100% against Monster FishIO's 0%. Fish Evolution also leads on rating (4.3 vs 3.0) and in-app purchases (none vs 1). On price, ads, device support and iOS requirement 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. Monster FishIO sells 1 one-off in-app purchase. Fish Evolution asks for nothing beyond the download.
Fish Evolution holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Fish Evolution has 40 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Fish Evolution's written reviews are positive against 0% of Monster FishIO's.
Fish Evolution ships an update fortnightly, Monster FishIO every 2 months. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.
| Parameter | Fish Evolution | Monster FishIO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (40 ratings) — better | 3.0 (4 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 40 — better | 4 |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 216 MB | 176 MB |
| Age rating | 9+ | 9+ |
| Developer | 佳灿 李 | ICEBEAR., JSC |
Customer experience
Fish Evolution
Monster FishIO
In-app purchases
Fish Evolution
No in-app purchases
Monster FishIO
- Remove Ads$1.99
Questions
Is Fish Evolution free?
Is Monster FishIO free?
Which has better reviews, Fish Evolution or Monster FishIO?
Do Fish Evolution or Monster FishIO have ads?
Which is updated more often, Fish Evolution or Monster FishIO?
Other comparisons
