Best chess apps to prepare for over-the-board games
You play in-person tournaments and need analysis, scanning of physical games, and opponent prep tools.

Chess Second
Chess Second (Lyon, France)
The FIDE side of chess: any rated player's rating history since 2001, before the round starts.

ChessBase
ChessBase GmbH
The professional's database and analysis suite.

Chessify
Chessify
Cloud-powered Stockfish analysis on your phone.

Chessnut Air
Pendo Technology Ltd. (Chessnut)
Affordable electronic board with multi-app support.

Chessvision.ai
Chessvision.ai (Pawel Kacprzak)
Point your camera at any board - get instant analysis.

Noctie.ai
Noctie AB
AI opponents that play like humans do.

ScanChess
SudoAI
Photograph a handwritten scoresheet and get a rule-checked PGN; photograph a board and get a FEN.

Square Off
Infivention Inc. (Square Off / Emotix)
Robotic auto-move chessboard with online integration.

Chess Position Trainer
Stefan Renzewitz
Veteran flash-card repertoire trainer for desktop.

Scid vs. PC
Steven Atkinson and contributors
Open-source database and analysis powerhouse.