Stockfish Chess

The world's strongest engine, free and open source.

FreeiOSmacOSWindowsLinuxAndroid

About Stockfish Chess

Stockfish is not really an app — it's the open-source engine that powers analysis inside Chess.com, Lichess, ChessBase and half the other apps in this directory. The official Stockfish Chess iOS/macOS app by Daylen Yang is a minimal front-end purpose-built for deep analysis: feed it a PGN or FEN, watch Syzygy tablebase probes, MultiPV lines, and WDL probabilities. Not a playing app — competes with LucasChess and Nibbler for the 'pure analysis board' slot. Free, ad-free, GPLv3.

Pros

Strongest publicly available chess engine
Free, open source, no telemetry
Syzygy tablebase and MultiPV support
Trusted by grandmasters and every major platform

Cons

Minimal UI — pure analysis, no play
Android requires separate GUI app
Position setup is keyboard-driven, not graphical

Features

Engine analysisOffline modeStudy & share

Pricing

100% free.

Best for

Audience: Intermediate (1200 – 1800), Advanced (1800 – 2200), Expert (2200+)

Languages: EN

Use cases

Online tournament prep Deep game analysis

Similar apps

Arena Chess GUI

Veteran free GUI for running 250+ chess engines.

Chess King Learn

Huge Convekta course catalog in one app.

Chess Position Trainer

Veteran flash-card repertoire trainer for desktop.

All alternatives to Stockfish Chess Stockfish Chess vs Arena Chess GUI

Last reviewed April 20, 2026 · First launched 2008

Stockfish Chess — Review, features & pricing — ChessDir