Comparison

Grandmaster Chess Clock vs Chess Clock

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

Head to head
About

Grandmaster Chess Clock

This app provides precise timing for chess games, supporting various time controls and offering detailed game history tracking. It allows users to record, share, and analyze their games, making it ideal for tournament players and enthusiasts looking to improve their time management.

Highlights
  • Versatile time controls (Rapid, Blitz, Bullet)
  • Customizable time settings with increment/delay
  • Automatic game recording and detailed statistics
  • Share and export game records and history
  • Tournament-ready precision timing
  • Elegant dark theme and intuitive interface
  • Multi-language support
Features
Read full description

Grandmaster Chess Clock is the chess clock that remembers your games. It is a precise, tournament-grade chess timer for over-the-board play — and the only clock that automatically keeps a record of every game you play on it, shows you where your time went, and replays the moves for you. Play with any time control, record your moves while the clock runs, and leave every board game with a saved score sheet, head-to-head statistics, and an automatic verdict on how you spent your clock. A CLOCK YOU CAN TRUST • Fischer increment, Bronstein, and US delay timing, implemented faithfully • Blitz, bullet, rapid, and classical presets, plus fully custom time controls • Base time to the exact minute and second, per player — time odds included • The screen never sleeps while the clock is running • Portrait table mode and landscape side-by-side layout, readable from both seats • Crisp tap sounds, haptic feedback, and low-time alerts with a color-blind-friendly mode • Pause, resume, and adjust either clock mid-game TWELVE HANDCRAFTED CLOCK FACES Make the clock yours: Digital, Daylight (bold type for bright rooms), Arbiter (the tournament hall standard), Walnut (wood and brass club clock), Pixel (8-bit voxel world), Ember (dark-fantasy fire), Terminal (phosphor CRT), Neon (synthwave dusk), Royal (gold on lacquer), Cosmos (deep-space starfield), Zen (ink and ivory) and Hero (comic-book energy). Digital, Daylight and Arbiter are free. Each face restyles the whole clock screen. RECORD MOVES WHILE YOU PLAY Open the built-in chess board and enter moves as the game happens: a legal move presses the clock automatically, so notation and timekeeping become one action. The board stays fixed, each player sees their own pieces upright from their side of the table, and every move is validated against the rules of chess. A CLOCK THAT REMEMBERS Every finished game is saved automatically to your game diary — players, result, time control, and the full per-move clock timeline. Open any game for per-player statistics: moves played, average move time, longest think, time used, and time remaining. If you recorded the moves, watch the whole game replay itself with one tap. YOUR TIME, COACHED — CLOCK PRO Your clock knows exactly how you spend your time — something no online chess site can see for your real board games. Clock Pro turns that data into coaching: • An automatic time verdict after every game: did you flag, scramble, or manage your clock cleanly? • Time Coach: your time-trouble patterns across weeks and months • Head-to-head records against every opponent, and your score in every opening • An activity calendar of your playing life and personal time budgets • All nine premium clock faces, voice announcements, and no ads SHARE AND EXPORT • Share any game as a report that replays in any browser — board, clocks, move times • Open a game directly in Lichess for free engine analysis • Clock Pro: export your archive as a shareable insights report • Back up and restore your entire archive as a portable file PRIVATE BY DESIGN No account. No sign-up. Everything works offline and stays on your device. Your games are yours. COMMON QUESTIONS Is it free? Yes — the full clock, move recording, the game diary, and game-report sharing are free. Clock Pro (subscription or a one-time lifetime unlock) adds the time-coaching suite, premium faces, and removes ads. Does it work offline? Completely. Airplane mode, a basement club, a park bench — no connection needed. Who is it for? Club and tournament players who want a serious chess clock, improvers who want to learn from every game, coaches tracking a student's real time usage, parents timing scholastic chess, and friends playing blitz at a café. What is a game report? One file that opens in any browser and replays your game — board, clocks, and each move's thinking time. Send it to anyone; nothing to install. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Chess Clock

Features
Read full description

The last game clock you'll ever download. Chess Clock is a dedicated clock for chess, go, shogi and board games. Giant digits you can read from across the table. Every time control that actually exists. No ads, no account, and it works fully offline. NEW IN 2.0 • Instant touch: the clock switches the moment your finger lands. Slap it like a real clock. A slap with several fingers counts as one move, never two. • Visible delay: in simple delay a "delay 4" badge and a shrinking bar show why your main time is not running yet. • Keep playing after a flag (US Chess rules): your opponent has to claim the win. If both flags fall, it is a draw, and the game summary records who fell first. • Sunlight theme: black on white, the side to move inverted, bold digits and full screen brightness for outdoor games and bright halls. TAP ANYWHERE Your whole side of the screen is the button. No hunting for a tiny target while your flag is falling. EVERY TIME CONTROL • Fischer increment: time added after every move • Bronstein delay: get back what you used, up to the increment • Simple delay: your time runs only after the delay expires • Japanese byo-yomi: periods that reset each move • Canadian byo-yomi: a block of time for a set number of stones • Hourglass: your time flows to your opponent • Multi-stage controls: "40 moves in 90 minutes, then 30 minutes" • Sudden death, and any combination of the above 25 presets are ready to play: bullet 1+0, blitz 3+2 and 5+3, rapid 10+5, classical 90+30, FIDE 40/90+30, US delay 5|d5, go, Canadian byo-yomi, shogi, hourglass, and turn timers for board, card, word and party games. Build and save your own in seconds. BUILT FOR GO AND SHOGI Japanese and Canadian byo-yomi done properly, with period counts, stone counts and an audible countdown for the last five seconds. Most clocks skip this. We started here. 2 TO 6 PLAYERS Players sit around the table and the turn goes around with them. Reverse direction mid-game, knock out players who run out of time and keep playing, or give everyone a fixed time per turn. Perfect for board game night, not just duels. PER-PLAYER HANDICAP Give each player a different time control. Ideal for coaching, for teaching kids, and for uneven matchups. READ IT ACROSS THE TABLE Full-screen digits, each player's time turned to face them. Six themes: Modern, Retro LCD seven-segment, OLED Black, High Contrast, Wood Club and the new Sunlight. SOUND AND HAPTICS Two distinct tap tones, so you know who is on move without looking. Low-time warning, byo-yomi ticks, and a falling-flag buzzer. Turn it all off for a silent tournament hall. GAME STATISTICS Move counts, average and longest think, a think-time chart for every move, and your last 50 games in history. Share any result as one line of text. ACCESSIBILITY VoiceOver reads each player's time and state, and a double tap passes the move. Dynamic Type, Reduce Motion, and High Contrast and Sunlight themes. HONEST SOFTWARE No ads. No in-app purchases. No account. No tracking. It works fully offline, on a plane, in a park, in a tournament hall with no signal. The only time it goes online is a quick check for a newer version at launch. Available in 49 languages, translated by hand. Made for players who take the game seriously enough to want the clock to disappear.

Screenshots

Grandmaster Chess Clock4 screens
Chess Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: Chess Clock at none against Grandmaster Chess Clock's 3. Chess Clock also leads on ads (none vs shown). Grandmaster Chess Clock's advantage is update cadence (every 2 days vs every 3 months). On price, 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

Both are free to download. Grandmaster Chess Clock sells 3 in-app purchases, starting at $4.99 per month. Chess Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Grandmaster Chess Clock ships an update every 2 days, Chess Clock every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Grandmaster Chess Clock versus Chess Clock: the parameters behind the verdict, then further details
ParameterGrandmaster Chess ClockChess Clock
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 days — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size54 MB25 MB
Age rating4+4+
DeveloperAras Atakliganlapnito.cz s.r.o.

In-app purchases

3 purchases

Grandmaster Chess Clock

Subscriptions2
  • Clock Pro Monthly$4.991 Month
  • Clock Pro Annual$24.991 Year
One-time1
  • Clock Pro Lifetime$44.99
None

Chess Clock

No in-app purchases

Questions

Is Grandmaster Chess Clock free?
Grandmaster Chess Clock is free to download, with in-app purchases available.
Is Chess Clock free?
Chess Clock is free to download, with no in-app purchases.
Do Grandmaster Chess Clock or Chess Clock have ads?
Grandmaster Chess Clock shows ads; Chess Clock does not.
Which is updated more often, Grandmaster Chess Clock or Chess Clock?
Grandmaster Chess Clock ships an update every 2 days, and Chess Clock every 3 months. Most recently, Grandmaster Chess Clock was updated on October 24, 2026 and Chess Clock on October 25, 2026.

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