*** The app is broken in iOS 10. It will not be updated as the app is here to honour the older iOS versions (where SmallFish was initially developed). ***

*** Download this app if you're interested how SmallFish worked in the old days. ***

*** This is the iOS 6 version for SmallFish, more suitable for the older devices. Please download the latest version (search "SmallFish" on AppStore) if you have later iOS installed. ***

SmallFish is an open source project based on the Stockfish chess engine. It uses the latest Stockfish chess engine (Stockfish 4.0), rated about Elo 3230+ and is therefore one of the strongest chess apps.

The app derives from the SmallChess app (another top chess app) to create stunning chess playing experience for absolutely no cost! The strongest chess app is free, something very hard to believe but it's true.

SmallFish offers you three distinct ways to improve your game. You can review your game with comments, or study how Stockfish thinks, or track your progress. You can also control the internal engine parameters.

The interface is an example of a "flatten" design - dropping of heavy textures and the addition of several new simple user interface elements.

SmallFish is simply amazing.

What’s New

Version 3.0.2

- Added iPad support

Ratings and Reviews

4.7 out of 5
12 Ratings

12 Ratings

CessnaPilotPaul ,

Fantastic teaching tool

Great little app. I love the graph that shows if your move was a net positive or negative. With the slide of a finger you can review your play and watch the graph bounce up and down. See you made a mistake? Let the program show you a better alternative.

GerikT ,

Pristine Chess Engine

Needs only a few tweaks when it comes to handling pieces and the pull-up menu. Overall, however, once you familiarize yourself with the menu and option handling, it's even more promising than Droidfish.

rishabhtayal ,

Great concept

Not sure how the algorithm calculates the moves, but it's interesting to come up with something like this. Haven't seen any other app doing that.


Ted Wong
32.6 MB

Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like