Deep Green vs check
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- 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
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A no-nonsense classical chess app. - CLEAN UI: Deep Green offers a distraction-free experience in a clean, native user interface, with Liquid Glass on iOS 26 and later. - 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. - MADE FOR IPHONE DUO: Adapts to both displays and every pose. The board centers on the fold like a folding chess board, and the game controls follow the system into the vertical bar. - 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.
check
A streamlined chess application for playing live games, practicing tactics, and reviewing matches. Offers customizable clocks and board themes for a focused experience.
- Live online games
- Computer challenges
- Local multiplayer
- Tactical puzzles
- Game review
- Customizable chess clock
- Board themes
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chess, without the clutter. check is a focused place to play, practice, and review chess. start a live game, challenge the computer, share one device, solve a quick tactic, or use the built-in clock at the board. PLAY YOUR WAY • Find players, send invites, and play live online games with real-time moves. • Take on Stockfish with four strength choices, from beginner to expert. • Play local chess with another person on the same device. • Leave a computer, local, or online game and resume it from the main screen. SHARPEN YOUR TACTICS • Solve 600 tactical positions across mate, best-move, material, and defense challenges. • Choose a difficulty from beginner through expert. • Ask for a hint when you need a nudge. REVIEW THE GAME • Turn on move ratings during computer games for immediate feedback. • Replay computer and local games move by move with concise notes. • Revisit the board position behind every move. BRING YOUR OWN CLOCK • Use a dedicated digital or analog chess clock for over-the-board games. • Start with bullet, blitz, and rapid presets, or create your own. • Choose sudden death, Fischer increment, Bronstein delay, or US delay. MAKE IT YOURS • Choose from monochrome and color board themes. • Use light or dark mode while keeping the board front and center. No ads. No clutter. Just chess.
Screenshots
Verdict
The clearest difference is price: Deep Green at Free against check's $2.99. Deep Green also leads on ratings volume (76 vs 1) and iOS requirement (16.4 vs 26.0). check's advantage is rating (5.0 vs 3.9) and review sentiment (100% vs 66%). On ads, in-app purchases, monetization model and device support 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
Deep Green is free to download; check costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
check holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Deep Green has 76 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 66% of Deep Green's written reviews are positive against 100% of check's.
Deep Green ships an update every 4 months, check every 2 weeks. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.
| Parameter | Deep Green | check |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.9 (76 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 76 — better | 1 |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 26.0 |
| Further details — not scored | ||
| Size | 24 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Cocoa Stuff | Arjun Mahanti |
Customer experience
Deep Green
check
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
check
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Deep Green
No in-app purchases
check
No in-app purchases
Questions
Is Deep Green free?
Is check free?
Which has better reviews, Deep Green or check?
Do Deep Green or check have ads?
Which is updated more often, Deep Green or check?
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