SmallFish Chess for Stockfish
by Ted Wong
- Games
- Paid
- Small & simple · 86
- Rating
- 4.8
- 4.5K ratings · US storefront
- Top 77%among 251 Games apps
- Last update
- Oct 19, 2026
- Version 19.5.1
- Size
- 204 MB
- Category
- Games
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
SmallFish is a project based on the Stockfish chess engine. It uses the latest Stockfish chess engine (Stockfish 19), rated about Elo 3600+ and is the strongest chess app on the App Store.
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. No in-app purchase, no ads, no data tracking.
SmallFish is simply amazing. It's small but powerful, you'll be surprised.
Features
---------
- Blunder checking
- Multiple line analysis
- Graphical evaluation of your game
- Game previews
- Dark mode support
- Endgame tablebase
- Opening books
Why not just download and try it yourself?
What’s new
Release notes for the latest version, as written by the developer.
Added Stockfish 19
Rank history
Daily position in the Australia charts. #1 is at the top.
- Best rank
- #18
- Current rank
- #25
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
86/100
Small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size50% · 20
Ratings: 4,527
- App size60% · 10
Size: 204 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #2, 40 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 19.5.1LatestReleased Oct 19, 2026
- 19.4.0Released Aug 31, 2026