Comparison

Deep Green vs Chess

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Deep Green

This app provides a classical chess experience with a clean, native interface and customizable piece designs. It supports open game formats, offers a unique chess engine with adjustable strength, and features a private, ad-free environment.

Highlights
  • Clean, native user interface
  • Customizable chess piece designs
  • Open game format (PGN/FEN)
  • Adjustable strength chess engine
  • Private and ad-free experience
  • System-level integration
Read full description

A no-nonsense classical chess app. - CLEAN UI: Deep Green offers a distraction-free experience in a clean, native user interface – now with the Liquid Glass design on iOS 26. - CUSTOM PIECE DESIGN: Beautiful chess set designed specifically for Deep Green and rendered at high resolution in both outline and 3D throughout the app. - MADE FOR IPAD: Dedicated menu bar, multiple windows, and refined trackpad, mouse, and Apple Pencil support. Squares highlight as you hover over the board. - TIGHT SYSTEM INTEGRATION: System-level sharing, drag and drop, AirDrop, undo/redo, contextual menus, Quick Look previews of chess files, Dark Mode, high contrast support and more. - OPEN GAME FORMAT: Games can be shared, saved, copied, pasted, imported, exported in the ubiquitous, open source PGN and FEN formats. Deep Green can open chess files straight from the Files app. - UNIQUE CHESS ENGINE: Enjoyable opponent with adjustable strength, praised for its humane gameplay, developed for Deep Green on the Apple Newton more than 25 years ago. - TWEAKABLE APPEARANCE: Engage the knights in the game by having them turn towards the center of the board, apply a humane, slightly random placement of the pieces. - IN YOUR LANGUAGE: Available in English, German, and Danish. - MODERN ARCHITECTURE: Written in Swift as a fully native app – modern, maintainable, and prepared for the future. - PRIVATE, AD-FREE: No ads, no tracking, no analytics, no nonsense. If you like Deep Green, please rate it favorably on the App Store.

About

Chess

Manage and study chess databases and games in PGN format with advanced analysis tools. Supports game creation, modification, and import from various sources. Includes engine analysis, opening book management, and puzzle training.

Highlights
  • PGN database and game management
  • Create, modify, and import games
  • Advanced engine analysis with Stockfish
  • Opening book and ChessBase support
  • Chess 960 (Fischer Random) support
  • Diagram recognition for PGN conversion
  • Puzzle training and online play
Features
Read full description

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 19 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/ To view the privacy policy and Terms of Use (EULA) visit https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ The application is continuously updated with new features and improvements. No registration! No advertising! No sharing of personal data!

Screenshots

Deep Green4 screens
Chess4 screens

Verdict

The call

The clearest difference is price: Deep Green at Free against Chess's $3.99. Deep Green also leads on in-app purchases (none vs 2). Chess's advantage is rating (4.7 vs 3.9) and update cadence (fortnightly vs every 4 months). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Deep Green is free to download; Chess costs $3.99 up front. Chess sells 2 in-app purchases, starting at $0.99 per month. Deep Green asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chess holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 75 and 116 respectively. Written reviews point the same way: 66% of Deep Green's written reviews are positive against 92% of Chess's.

UpkeepUpdate frequency

Deep Green ships an update every 4 months, Chess fortnightly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
Deep Green versus Chess: the parameters behind the verdict, then further details
ParameterDeep GreenChess
PriceFree — better$3.99
Rating3.9 (75 ratings)4.7 (116 ratings) — better
Positive reviews66.0% of reviews92.0% of reviews — better
Number of ratings75116 — better
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size24 MB237 MB
Age rating4++4
DeveloperCocoa StuffGiordano Vicoli

Customer experience

Deep Green

All ratings75 ratings
Positive70.7%
Neutral5.3%
Negative24.0%
Written reviews212 reviews
Positive66.0%
Neutral9.9%
Negative24.1%

Chess

All ratings116 ratings
Positive92.2%
Neutral2.6%
Negative5.2%
Written reviews174 reviews
Positive92.0%
Neutral2.9%
Negative5.2%

User reviews

Deep Green

From 75 App Store ratings

What we love

  • 🌟 Elegant and polished design
  • 🤖 Strong chess engine
  • 👍 Intuitive and easy to use
  • 🎨 Beautiful graphics and animations
  • 🕹️ Smooth gameplay and controls

Room to improve

  • 🐛 Crashes and stability issues
  • ⚠️ Lack of features (e.g. game saving, online play)
  • 🔍 Difficulty settings too challenging for some users
  • 🔕 Missing audio/sound effects
  • 📏 Board/pieces not optimized for larger screens

Chess

From 116 App Store ratings

What we love

  • 👍 Powerful chess database features
  • 👍 Comprehensive analysis tools
  • 👍 Excellent PGN management
  • 👍 Great value for price
  • 👍 Frequent updates and improvements

Room to improve

  • 🐛 Steep learning curve
  • 🐛 Occasional crashes
  • 🐛 Unintuitive interface
  • 🐛 Some users find it confusing
  • 🐛 Missing dark mode

Bugs and requests

Deep Green

Reported bugs

4 issues
  • App crashes when promoting pawns
  • Board orientation issues when rotating device
  • Unresponsive UI elements
  • Compatibility problems with newer iOS versions

Requested features

5 requests
  • Game saving and loading functionality
  • Online/multiplayer mode
  • Customizable board/piece themes
  • Difficulty settings for beginners
  • Indicators for check, checkmate, and draw

Chess

Reported bugs

12 issues
  • Problem saving updated game data
  • Engine stopped working after 30 seconds
  • App crashes when adding annotations without hitting 'edit mode' first
  • Crash opening .pgn in landscape mode
  • Crashes when selecting a cell with 0 games associated
Show 7 more
  • App freezes sometimes
  • Download stuck on 'downloading'
  • Dropbox issues on earlier iOS versions
  • Program not bulletproof upon saving work
  • Can't download cbv files
  • Graphical annotations drawing unwanted arrows
  • App doesn't work after iOS update

Requested features

20 requests
  • Add dark mode
  • Add board flip button
  • Improve interface for screen reader users
  • Add private game feature with code
  • Add computer whole game analysis with annotations
Show 15 more
  • Add coloring moves based on annotation
  • Add drawing arrows that are saved
  • Add bookmark feature
  • Add buttons/swipe to go forward/backwards to next/previous game
  • Add select all function for copying games
  • Add autoplay games
  • Remember last position/game opened in a database
  • Support Millennium boards
  • Support UCI engine compatibility
  • Optimize database game view
  • Make edit mode arrows slimmer and add more colors
  • Allow direct iCloud access to databases without export
  • Make graphical annotations optional/disableable
  • Improve font size adjustment for moves and annotations
  • Add search with multiple criteria

In-app purchases

None

Deep Green

No in-app purchases

2 purchases

Chess

Subscriptions2
  • Monthly Premium Subscription3 Days trial$0.991 Month
  • Yearly Premium Subscription3 Days trial$8.991 Year

Questions

Is Deep Green free?
Deep Green is free to download, with no in-app purchases.
Is Chess free?
Chess costs $3.99, and also offers in-app purchases.
Which has better reviews, Deep Green or Chess?
Chess is rated higher. Deep Green averages 3.9 out of 5 from 75 ratings, while Chess averages 4.7 from 116 ratings.
Do Deep Green or Chess have ads?
Neither Deep Green nor Chess shows ads.
Which is updated more often, Deep Green or Chess?
Deep Green ships an update every 4 months, and Chess fortnightly. Most recently, Deep Green was updated on September 21, 2026 and Chess on September 22, 2026.

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