BIG FISH! Idle Evolution
Tap, grow and evolve your fish
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Start as a tiny tadpole. End as the biggest creature in the ocean.
BIG FISH! is a relaxing tap-and-grow game. Every tap adds mass to your fish. Grow enough and it evolves into a new species: 30 in total, from a 2-gram tadpole to a 150-tonne blue whale.
TAP TO GROW
• Tap anywhere on the screen. Every tap makes your fish heavier.
• Land critical taps for triple growth.
• Watch your fish swim and turn in a living, animated ocean.
EVOLVE 30 SPECIES
• Guppy, goldfish, lionfish, shark, orca, blue whale and many more.
• Every species is bigger than the last.
• Evolution is automatic: reach the mass, become the fish.
UPGRADE YOUR GROWTH
• Earn coins as you play and spend them on five upgrades.
• Grow faster per tap, per second and while you are away.
KEEPS GROWING WHILE YOU'RE AWAY
• Your fish keeps growing for up to 12 hours while the game is closed.
• Come back, collect your reward and carry on.
OUTGROW THE OCEAN
• An ocean of 600 rivals ranked by mass: real players, plus ocean fish while players are few.
• Swim past them one by one on your way to #1.
FAIR AND SIMPLE
• No ads.
• No account and no sign-up.
• Works offline.
• Optional in-app purchases of gems speed up growth. Every species can be reached just by playing.
How big can you get?
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New: Feast! From Royal Gramma on, your taps fill a feast meter. A full meter gives your fish 40 minutes of growth at once, up to 12 times a day.
Offline Growth now has 50 finer levels, so it keeps paying off for the whole journey.
Bug fixes and stability improvements.
The developer, Sergey Li, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sergey Li
- Size
- 196.8 MB
- Category
- Casual
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 2,600 Gems $19.99
- 1,200 Gems $9.99
- 100 Gems $0.99
- Starter Bundle $2.99
- 550 Gems $4.99
- Copyright
- © 2026 AlienMinds