Comparison

A.C.E vs chess.ceo

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

Head to head
About

A.C.E

Features
Read full description

This home grown chess engine is rated ~1500ELO and is much more realistic than a chess . com bot! Test your skills and see if you can win!

About

chess.ceo

This app provides professional chess analysis tools, including engine analysis, a vast game database, and opponent preparation features. It allows users to analyze games, study master-level games, and follow live tournaments. An optional subscription unlocks advanced features like offline database access and a distraction-free analysis board.

Highlights
  • Engine analysis with Stockfish
  • 14 million master-level game database
  • Opponent search and repertoire study
  • Live tournament broadcasts
  • Full game analysis with PGN import
  • Organize and sync PGN files
  • Chess960 and chess clock
Features
Read full description

Chess.ceo Whether you're a beginner learning openings or a tournament player preparing for your next opponent, Chess.ceo gives you professional chess analysis tools right on your phone. Engine Analysis Analyze any position with Stockfish, the world's strongest chess engine, running locally on your device — no internet required. Need more power? Cloud Engines let you run analysis on a dedicated cloud machine, billed per minute and only while it's running. 14M Game Database Explore over 14 million master-level games with real-time opening statistics. For any position, instantly see which moves were played, how often they led to wins, and at what rating level. Filter by rating range and time control to find data relevant to your level. Endgame positions are covered by seven-piece Syzygy tablebases showing perfect play with distance-to-mate. Opponent Preparation Search any player by name, country, or FIDE title. View their game history, ratings, and most-played openings. Study their repertoire and identify weaknesses before your next tournament game. Link players across FIDE and Chess.com profiles. Live Tournament Broadcasts Follow ongoing tournaments with live game boards, per-board evaluation bars, and live standings. Jump straight into any player's games while a round is in progress. Full Game Analysis Import games via PGN — paste from clipboard or load from file. The engine evaluates every move and shows where mistakes were made. Build a complete variation tree with main lines and sidelines, annotate key moments, and save your analysis for later. PGN Files Organize your analyzed games into files and folders, synced across devices when you sign in. Import hundreds of games at once, or export to share with coaches and training partners. Additional Features • Chess960 (Fischer Random) with one tap • Chess clock with customizable time controls • Position editor for setting up any position • Search games by position across your files • Landscape and tablet support • Seven languages: English, German, Spanish, French, Russian, Chinese, and Arabic Free to Use All of the above is free — no ads. Create an account and start analyzing. CEO Tier — Optional Subscription For players who want more: • Pro Board — full-screen, distraction-free analysis • Full database offline — all 14 million games on your device, no connection needed • Higher daily limits on search, preparation, and database queries • More storage for your PGN files Subscribe monthly, cancel any time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://chess.ceo/docs/tos Privacy Policy: https://chess.ceo/docs/privacy

Screenshots

A.C.E4 screens
chess.ceo4 screens

Verdict

The call

The clearest difference is iOS requirement: A.C.E at 11.0 against chess.ceo's 15.0. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
A.C.E versus chess.ceo: the parameters behind the verdict, then further details
ParameterA.C.Echess.ceo
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequency—Every 4 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size25 MB141 MB
Age rating17+4+
DeveloperAlastair McNeillCHESSGM OU

In-app purchases

None

A.C.E

No in-app purchases

None

chess.ceo

No in-app purchases

Questions

Is A.C.E free?
A.C.E is free to download, with no in-app purchases.
Is chess.ceo free?
chess.ceo is free to download, with no in-app purchases.
Do A.C.E or chess.ceo have ads?
Neither A.C.E nor chess.ceo shows ads.

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