Chess-Studio in IOS

For Serious Chess Players!!

Walkthrough, Guilds, Tips on this special game

Our Expert Score

90/100

Chess Studio is not just a 'game'—it is arguably the most powerful database management tool available for chess players on mobile. For serious students of the game, the ability to import massive PGN files and analyze them using the Stockfish engine (with neural network support) is a game-changer. The interface is clean, supporting both portrait and landscape modes, and it handles complex move trees and annotations with professional-grade clarity.

What sets it apart is the 'Diagram Recognition' feature, which allows you to take a photo of a chess book or screen and instantly convert that position into a digital, playable board. Whether you're preparing for a tournament, studying grandmaster games from The Week in Chess (TWIC), or solving puzzles, Chess Studio provides a comprehensive suite of tools that used to require a desktop PC. It’s a masterclass in utility design for the chess community.

Dinsun reviewed on: Thu Feb 20 2025

The Game

Available on: iPhone, iPad, iPod

Version 4.7.7Thu Feb 19 2026

- IN THIS RELEASE (4.7.7)

• From the Lichess section in the main menu you can also access Lichess TV.

• Improvements in application handling in case of memory overload.

• Minor bug fixes, general improvements and optimizations.

- MAIN FEATURES INTRODUCED IN THE LATEST RELEASES

• The new version of the Stockfish 18 engine with Neural Network (NNUE) support has been integrated. According to the authors, Stockfish 18 shows a consistent improvement in performance, with an Elo gain of up to 46 points and winning close to 4 times more game pairs than it loses.

• A Unique online Database with over 11 million games is available. In addition to standard browsing, it is possible to perform targeted searches by data or position. The Unique Database will be updated regularly.

• Added the ability to perform searches in a Database based on PGN Tags (Event, Date, White, Black, ECO, Elo, etc.). This section can be accessed from the main menu.

• Diagram Recognition: this feature allows the user to take and/or upload photos of chess diagrams and convert them into PGN format positions. It is also possible to upload images containing multiple chess diagrams.

• From the Help section, you can download the updated full description of the application. The same description can be viewed at the following address: https://chessstudio.wordpress.com/chess-studio/

• Chess Studio is enhanced with a new feature: the ability to browse an Online Database of games organized by Year and Tournament since 1560. This extensive Online Database will be updated daily with new tournaments and games. Access to this database requires a symbolic Premium subscription.

• A new training feature has been added: the user can load a game from a database and decide whether to move for White or Black without seeing the moves to evaluate his skills. At the end a report will be produced that traces the entire training session. It is possible to use this functionality either by choosing the game to train with or by letting the application decide the game in random mode. To use this functionality, some settings are possible via an appropriate interface. There are various ways to access this functionality, for example from the menu at the top center of the chessboard screen.

• Chess Studio can now read databases in ChessBase format. It can import cbh, cbp, cbt, cbg, cba, cbs and cbc formats, thus it is able to interpret the moves of a game, the variations and comments.

• Possibility of playing online using the Lichess platform. For blind or visually impaired players this feature is fully supported by Voice Over.

• Automatic insertion of engine analysis into games. To enter the analysis, simply touch the engine analysis line. To use this feature you need to activate it in the application settings.

• The new function "Search games by material" has been added, through which it is possible to search for games in a database according to the material present on the chessboard.

• In the Chess Board screen, you can customize the colors of the top bar, bottom bar, buttons and background. The customization is done in the Settings section. In the opening section is the new functionality to explore the Lichess Master Opening Tree. It is now possible to activate the speech synthesizer to announce the moves made both when entering and when viewing a game.

• From the opening section of a database it is possible to save the games relating to a single ECO code or to a single opening variant in a new database. To do this, just swipe left on the opening variant you want to save and follow the directions.


Chess Studio is the first and only application for iPhone and iPad able to manage chess databases and games in PGN format in a complete and efficient way.

Chess Studio is an application designed and built for those players who really want to deepen their knowledge in the field of chess, studying chess regularly and participate in tournaments.

Chess Studio allows you to:

• Read database and games in PGN format (also with extended notation of moves).

• Create, delete and modify folders and databases.

• View games with annotations and textual comments and keep track of the displayed games.

• Use a double chessboard on the same screen for better game analysis.

• Visualize moves and variants in compact mode or indented mode.

• Modify existing games with move annotation and textual comments.

• Insert new games and positions.

• Insert, replay and analyze games in Chess 960 mode.

• Insert moves with annotations and textual comments.

• Insert variation, subvariations etc.

• Insert and visualize graphical annotation (colored arrows and highlighted squares).

• Share Databases and Games through Airdrop.

• Download chess database from internet.

• Download chess database directly from PGN Mentor site.

• Import games, database and Opening Books from other applications.

• Merge two or more databases.

• Copy/Paste games and positions.

• Analyze games with Stockfish 17.1 Engine with the support of the Neural Networks (up to 5 lines of analysis simultaneously) with the support of the Engine Evaluation Bar.

• Replay games automatically.

• Visualize Pawn structure.

• Manage Variations and sub-variatons: delete and promote variations.

• Read the weekly Magazine The New In Chess (TWIC) and download the games.

• Uploading and Downloading PGN Database to/from Dropbox, Google Drive, OneDrive.

• Three different modes for moving pieces.

• Analyze endgames with Endgame Tablebases.

• Analyze and study Chess Openings in the Chess Openings Section.

• Create and manage Opening Books in Polyglot format.

• Import and manage ChessBase Opening Books (ctg format).

• Automatically classify a database according to ECO code.

• Replay, enter and analyze Chess 960 games (Fischer Random Chess).

• Play against the engine both in standard mode and in Chess 960 mode.

• Play online through the LiChess platform

• Train by solving Puzzles

• ChessBase Database support.

• Diagram Recognition: this feature allows the user to take and/or upload photos of chess diagrams and convert them into PGN format positions.

Other features and technical details:

• Modify the board size.

• Professional chess fonts and figurines for moves notation and annotation.

• Preview of the game in the board tapping the Info button.

• Quick search feature.

• Advanced search feature.

• Complete management of Null Moves with Tutorial.

• Visualization of ECO code and Opening during game replay or game insertion.

• Visualization of Book Openings during game replay or game insertion.

• Portrait/Landscape mode for all devices.

• Support of Slide Over and Split View mode.

• Function to move up within variants and subvariants.

• iOS 18 compatible and optimized for all the devices.

• Sharing of databases across devices via iCloud Drive (also with Chess Studio for Mac OS).

• Sound option.

• Support for iPad Pro Keyboard or bluetooth keyboard.

• VoiceOver/Accessibility support.

• Direct contact via email with the developer to report problems, ask for explanation and suggestions (very quick answer!).

• Languages: English, Italian, Spanish and German.

Complete description at: https://chessstudio.wordpress.com/chess-studio/

The application is continuously updated with new features and improvements.

To view the terms of service visit https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

No registration!

No advertising!

No sharing of personal data!


Requires iOS 15.0 or later. Compatible with iPhone, iPad, and iPod touch.

Make the right move. Get Chess Studio! Does what it promises and much more than you imagine!

Chess Studio is the first and only application for iPhone and iPad able to manage chess databases and games in PGN format in a complete and efficient way.

Chess Studio is an application designed and built for those players who really want to deepen their knowledge in the field of chess, studying chess regularly and participate in tournaments.

Chess Studio allows you to:

• Read database and games in PGN format (also with extended notation of moves).

• Create, delete and modify folders and databases.

• View games with annotations and textual comments and keep track of the displayed games.

• Use a double chessboard on the same screen for better game analysis.

• Visualize moves and variants in compact mode or indented mode.

• Modify existing games with move annotation and textual comments.

• Insert new games and positions.

• Insert, replay and analyze games in Chess 960 mode.

• Insert moves with annotations and textual comments.

• Insert variation, subvariations etc.

• Insert and visualize graphical annotation (colored arrows and highlighted squares).

• Share Databases and Games through Airdrop.

• Download chess database from internet.

• Download chess database directly from PGN Mentor site.

• Import games, database and Opening Books from other applications.

• Merge two or more databases.

• Copy/Paste games and positions.

• Analyze games with Stockfish 18 Engine with the support of the Neural Networks (up to 5 lines of analysis simultaneously) with the support of the Engine Evaluation Bar.

• Replay games automatically.

• Visualize Pawn structure.

• Manage Variations and sub-variatons: delete and promote variations.

• Read the weekly Magazine The New In Chess (TWIC) and download the games.

• Uploading and Downloading PGN Database to/from Dropbox, Google Drive, OneDrive.

• Three different modes for moving pieces.

• Analyze endgames with Endgame Tablebases.

• Analyze and study Chess Openings in the Chess Openings Section.

• Create and manage Opening Books in Polyglot format.

• Import and manage ChessBase Opening Books (ctg format).

• Automatically classify a database according to ECO code.

• Replay, enter and analyze Chess 960 games (Fischer Random Chess).

• Play against the engine both in standard mode and in Chess 960 mode.

• Play online through the LiChess platform

• Train by solving Puzzles

• ChessBase Database support.

• Diagram Recognition: this feature allows the user to take and/or upload photos of chess diagrams and convert them into PGN format positions.

Other features and technical details:

• Modify the board size.

• Professional chess fonts and figurines for moves notation and annotation.

• Preview of the game in the board tapping the Info button.

• Quick search feature.

• Advanced search feature.

• Complete management of Null Moves with Tutorial.

• Visualization of ECO code and Opening during game replay or game insertion.

• Visualization of Book Openings during game replay or game insertion.

• Portrait/Landscape mode for all devices.

• Support of Slide Over and Split View mode.

• Function to move up within variants and subvariants.

• iOS 26 compatible and optimized for all the devices.

• Sharing of databases across devices via iCloud Drive (also with Chess Studio for Mac OS).

• Sound option.

• Support for iPad Pro Keyboard or bluetooth keyboard.

• VoiceOver/Accessibility support.

• Direct contact via email with the developer to report problems, ask for explanation and suggestions (very quick answer!).

• Languages: English, Italian, Spanish and German.

Complete description at: https://chessstudio.wordpress.com/chess-studio/

The application is continuously updated with new features and improvements.

To view the terms of service visit https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

No registration!

No advertising!

No sharing of personal data!


Ratings & Reviews

4.7 out of 5 with 110 Counts
Age Rating 4+

Screenshots

Chess-Studio screenshot 1Chess-Studio screenshot 2Chess-Studio screenshot 3Chess-Studio screenshot 4Chess-Studio screenshot 5Chess-Studio screenshot 6Chess-Studio screenshot 7Chess-Studio screenshot 8Chess-Studio screenshot 9Chess-Studio screenshot 10Chess-Studio screenshot 11Chess-Studio screenshot 12Chess-Studio screenshot 13Chess-Studio screenshot 14Chess-Studio screenshot 15Chess-Studio screenshot 16Chess-Studio screenshot 17Chess-Studio screenshot 18Chess-Studio screenshot 19Chess-Studio screenshot 20

Chess Studio is the premier application for managing chess databases and analyzing games in PGN format. Designed for players who want to deepen their knowledge, it features an integrated Stockfish engine with neural network support, a dual-chessboard analysis mode, and support for Chess 960. Unique features like Diagram Recognition (OCR) and Lichess integration make it an essential tool for training and tournament prep.

Features

1

Stockfish engine with Neural Network support

2

Diagram Recognition (photo to PGN conversion)

3

Manage massive PGN databases and folders

4

Play online via Lichess integration

5

Cloud sync with Dropbox, Google Drive, and iCloud

Tips

Gameplays

Q&A

Yes, it supports Opening Books in Polyglot and ChessBase (ctg) formats.

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