Press kit.

In one sentence

Notation is a chess coaching app for iPhone, iPad and Mac that watches every game you play and explains, in plain English, what you could have done differently.

In one paragraph

Notation is built around Nadia, an AI chess coach who watches your games and explains what's happening on the board in natural, spoken English — calibrated to your level. Unlike conventional analysis tools that flag blunders with engine numbers, Nadia spots the recurring patterns in how you play and helps you break the habits holding you back. The app also includes Shadow, a unique opponent that learns your style and saves checkpoints so you can play yourself from a year ago. Notation runs on iPhone, iPad and Mac, and pairs with Chessnut electronic boards over Bluetooth.

Key facts

Name

Notation: Chess Coach

Platforms

iPhone, iPad, Mac

Price

£1.99 (one-off, no subscription)

Developer

Solo independent developer

Engines

Stockfish 18, Fairy-Stockfish, Maia (all on-device)

Hardware

Chessnut Air, Pro, Go, Air+, Move

Website

notationchesscoach.app

What makes it different

• An AI coach, not just an engine. Nadia explains why, not just what. Plain English, spoken aloud, calibrated to your level.
• Pattern detection across games. Notation finds the recurring mistakes in your play, not just one-off blunders in a single game.
• Shadow. An opponent that learns how you play and saves checkpoints — so you can spar with the version of you from last year.
• Real boards. Pair with a Chessnut electronic board and play on real wood while Nadia coaches.
• Privacy by design. Engines and core coaching run on-device. Optional cloud AI features are bring-your-own-key — the user's data, on the user's account, never proxied through us.

Assets

A press kit with logos, screenshots, and key art is available on request — email hello@notationchesscoach.app and you'll get a Dropbox link the same day.