# BIG FISH! Idle Evolution — Tap, grow and evolve your fish

> Tap, grow and evolve your fish (iPhone/iPad app by Sergey Li.)

- Source: https://appshunter.io/ios/app/big-fish-idle-evolution/id6820312714 (this page in markdown: same URL + `.md`)
- Developer: [Sergey Li](https://appshunter.io/developer/1602450113)
- Category: Games, Casual, Simulation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 188 MB
- Languages: American English
- Released: 2026-10-14
- Data updated: 2026-10-31

## What is BIG FISH! Idle Evolution?

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?

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 550 Gems | $4.99 | one-time |
| Starter Bundle | $2.99 | one-time |
| 100 Gems | $0.99 | one-time |
| 1,200 Gems | $9.99 | one-time |
| 2,600 Gems | $19.99 | one-time |


## Is BIG FISH! Idle Evolution safe?

Not enough ratings yet to assess BIG FISH! Idle Evolution.

## Is BIG FISH! Idle Evolution legit?

BIG FISH! Idle Evolution appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for BIG FISH! Idle Evolution is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.0.2 — 2026-10-15

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.

### 1.0.1 — 2026-10-15

- minor bug fixes and other improvements

### 1.0.0 — 2026-10-14

No release notes.

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## More apps by Sergey Li

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All apps by Sergey Li: https://appshunter.io/developer/1602450113

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*