A.C.E vs Doctor Chess
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
A.C.E
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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!
Doctor Chess
This app offers a comprehensive chess experience adhering to official FIDE rules, including special moves and draw conditions. Play against AI at various skill levels or challenge friends online without any sign-up or ads.
- Full FIDE rule set enforcement
- Five AI difficulty tiers
- Online 1v1 matches via Game Center
- No sign-up required
- Ad-free and tracking-free
- 40 language support
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Doctor Chess brings the full FIDE rule set to your phone and tablet — castling, en passant, promotion, threefold repetition, the 50-move rule, and insufficient material draws are all enforced. • Single player — local pass-and-play plus five AI tiers (Beginner / Intermediate / Advanced / Expert / Master) • Master tier uses iterative-deepening alpha-beta search with quiescence, null-move pruning and late-move reduction • Online 1v1 — turn-based matches via Apple Game Center, no sign-up required • Friend invites through the system Game Center picker • OS-native leaderboards and achievements • 40 languages — Korean, English, Japanese, Chinese (Simplified/Traditional), Spanish, French, German, Italian, Portuguese, Russian, Vietnamese, and many more • Tap or drag to move, automatic promotion dialog, last-move highlight, legal-move dots No sign-up. No ads. No tracking. No in-app purchases.
Screenshots
Verdict
The clearest difference is update cadence: A.C.E at every 5 days against Doctor Chess's every 5 weeks. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
A.C.E ships an update every 5 days, Doctor Chess every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | A.C.E | Doctor Chess |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 5 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 19 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Alastair McNeill | Lim Sangjin |
In-app purchases
A.C.E
No in-app purchases
Doctor Chess
No in-app purchases
