ChessFlex vs Chess Openings Coach
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
ChessFlex
Play chess with friends or AI without accounts or servers. Features a FIDE-formula rating system and asynchronous play. Offers an optional one-time unlock for in-depth game analysis and coaching.
- Play with friends via QR code or iMessage
- Human-like AI bots with adjustable ELO
- FIDE-formula rating system
- Asynchronous and timed game modes
- No chat, only chess notation
- Private by design, no accounts or tracking
- Optional game analysis and coaching unlock
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ChessFlex is chess stripped back to the game. No accounts, no servers, no chat — just the board, the friends you choose, and a real rating that's yours. PLAY YOUR CIRCLE Connect by trading a QR code, in person or over iMessage. No global matchmaking, no strangers, no friend requests. The people across the board are people you picked. HUMANS — OR HUMAN-LIKE BOTS Five built-in bots from 400 to 2000 ELO play like real people at that level: they make human mistakes, not random ones. A real game and a real rating from your very first move. And when you've beaten them all, there's King — our own engine at full strength, and not human-like at all. FIDE-FORMULA RATING Every game updates your rating with the standard FIDE formula. It's your history, not your ceiling — anyone can challenge anyone, and a 1200 taking on a 2000 is courage, not a mistake. PLAY AT YOUR PACE Async by default — make a move, put your phone away, pick it up hours later. Or set a clock: Blitz, Rapid, Classical, or multi-day correspondence. THE BOARD IS THE CONVERSATION There's no chat box, ever. Players speak only in standard chess annotation symbols — !! for a brilliant move, ? for a mistake. Nothing personal can be exchanged, so there's nothing to moderate, and it's cross-language by default. PRIVATE BY DESIGN No email, no sign-up, no tracking, no ads. Your identity is your device; your games live on your device and travel only between you and your opponent. CHESSFLEX STUDY (optional) A one-time unlock that turns every game into a lesson: move-by-move analysis, win-chance insight in plain language, guided openings, and practice positions. Scan a chess diagram from a screenshot and play it out, or have the coach read its suggested line aloud. Playing, ratings, and opening names stay free, always. From Labham LLC. A sibling to LexFlex.
Chess Openings Coach
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ChessOpenings is a quiet, well-written reference for the classical chess opening repertoire — Ruy Lopez, Sicilian, Queen's Gambit, King's Indian, and 21 more — with an AI coach for the specific positions you get stuck in. WHAT IT DOES • 25 classical openings grouped by structure (Open Games, Semi-Open, Closed, Indian Defences, Flank) • Each opening: ECO code, main line, key strategic ideas, main variations with explanations, common traps, suitability ("Players who like long strategic battles") • AI coach answers specific "what should I do if my opponent plays X?" questions in the Silman / Rowson / King tradition • Private practice log — every session logged with opening, question, AI feedback, your note • 3 free coach asks per day; Pro is unlimited DESIGN Warm walnut-and-cream aesthetic — board-brown and ink on cream, serif typography. Apple-native SwiftUI. No third-party UI frameworks. PRIVACY • Every study note stays on your iPhone with SwiftData • No login, no email, no analytics SDKs • "Data Not Collected" verified in App Privacy • AI coach calls send only the opening name and your question — no identifiers, no logs FREE Browse all 25 openings, every variation + 3 AI coach asks per day + unlimited practice log. PRO ($4.99/month or $19.99/year) • Unlimited AI coach asks WHY CHESSOPENINGS Most chess apps are puzzle-grinders or engine-evaluation tools. ChessOpenings gives you a structured reference for the classical openings — the actual ideas, the actual traps, who they suit — plus a coach who'll explain the move you didn't understand. Built for club players who want to understand why a position works, not just how the engine evaluates it. Built in Australia. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: ChessFlex at every 9 days against Chess Openings Coach's every 2 months. 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. ChessFlex sells 1 one-off in-app purchase and Chess Openings Coach sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
ChessFlex ships an update every 9 days, Chess Openings Coach every 2 months. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.
| Parameter | ChessFlex | Chess Openings Coach |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Labham LLC | Mitaanshu Agarwal |
In-app purchases
ChessFlex
- ChessFlex Study$7.99
Chess Openings Coach
- Chess Openings Coach Pro Monthly7 Days trial$4.991 Month
- Chess Openings Coach Pro Yearly7 Days trial$24.901 Year
Questions
Is ChessFlex free?
Is Chess Openings Coach free?
Do ChessFlex or Chess Openings Coach have ads?
Which is updated more often, ChessFlex or Chess Openings Coach?
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