Comparison

Chess Clock by Chess.com vs Grandmaster Chess Clock

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

Head to head
About

Chess Clock by Chess.com

This free app functions as a digital chess clock, offering customizable time controls for any game. It supports various increment and delay types, multiple stages, and handicapping, making it ideal for casual play and tournaments. Adjust time on the fly and enjoy clear displays and audio alerts.

Highlights
  • Customizable time controls
  • Fischer and Bronstein increments
  • Multiple-stage time controls
  • Handicapping support
  • On-the-fly time adjustments
  • Pause and interruption support
  • Audio alerts
Features
Read full description

Replace your chess clock with this free game timer! It's easy to use, yet fully featured to handle any time control. 100% free: no in-app purchases, no ads! Choose your time control and you're ready to play. The 2nd player presses her button to start the 1st player's clock - and the game is on! FEATURES - Large, easy-to-read buttons - Works in landscape and portrait on all devices - Quickly customize the app for one-tap access to all your favorite time controls - Time controls include base minutes per player and optional per-move delays or bonus time. The app supports both Fischer and Bronstein increments, as well as simple delays. The duration is up to you! - Supports multiple-stage time controls commonly seen in tournaments, such as "40 moves in 2 hours + game in 60 minutes." A glance at the clock shows your current stage! - Support for handicapping lets you set different time controls for each player! - You can adjust the time remaining on the fly, in the middle of your game, for either or both players! - Clock pauses automatically if the app is interrupted; manually pause the clock at any time - Pleasant sounds for buttons and "time's up" alert At Chess.com, we really do love chess, and *sometimes* we even play it offline! For times like that, we created this clock - and we hope you love it as much as we do.

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 TEN HANDCRAFTED CLOCK FACES Make the clock yours: Digital, 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), Retro LCD, and Flip (split-flap board). Every face is a complete theme — its own background, matching chess-board colors, and a signature animation that answers each press of the clock. 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, custom clock colors, 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/

Screenshots

Chess Clock by Chess.com4 screens
Grandmaster Chess Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: Chess Clock by Chess.com at none against Grandmaster Chess Clock's 3. Chess Clock by Chess.com also leads on ads (none vs shown) and ratings volume (338 vs 1). Grandmaster Chess Clock's advantage is update cadence (every 2 days vs every 3 months) and rating (5.0 vs 4.6). 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 by Chess.com asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Grandmaster Chess Clock holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Chess Clock by Chess.com has 338 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 91% of Chess Clock by Chess.com's written reviews are positive against 100% of Grandmaster Chess Clock's.

UpkeepUpdate frequency

Chess Clock by Chess.com ships an update every 3 months, Grandmaster Chess Clock every 2 days. The most recent releases landed on September 24, 2026 and July 21, 2026 respectively.

Scorecard8 real differences · 3 level
Chess Clock by Chess.com versus Grandmaster Chess Clock: the parameters behind the verdict, then further details
ParameterChess Clock by Chess.comGrandmaster Chess Clock
PriceFreeFree
Rating4.6 (338 ratings)5.0 (1 ratings) — better
Positive reviews90.6% of reviews100.0% of reviews — better
Number of ratings338 — better1
Update frequencyEvery 3 monthsEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterAd-supported
Best chart rank#175 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size3 MB44 MB
Age rating4+4+
DeveloperChess.comAras Atakligan

Customer experience

Chess Clock by Chess.com

All ratings338 ratings
Positive90.2%
Neutral3.0%
Negative6.8%
Written reviews212 reviews
Positive90.6%
Neutral5.7%
Negative3.8%

Grandmaster Chess Clock

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Chess Clock by Chess.com

Reported bugs

2 issues
  • Time not always reduced when pressing the clock quickly
  • Custom time settings not always saved properly

Requested features

4 requests
  • Add warning/countdown alerts for time running out
  • Allow setting different times for each player
  • Provide more theme/color options
  • Add vibration feedback when pressing the clock

Grandmaster Chess Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Chess Clock by Chess.com

No 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

Questions

Is Chess Clock by Chess.com free?
Chess Clock by Chess.com is free to download, with no in-app purchases.
Is Grandmaster Chess Clock free?
Grandmaster Chess Clock is free to download, with in-app purchases available.
Which has better reviews, Chess Clock by Chess.com or Grandmaster Chess Clock?
Grandmaster Chess Clock is rated higher. Chess Clock by Chess.com averages 4.6 out of 5 from 338 ratings, while Grandmaster Chess Clock averages 5.0 from 1 ratings.
Do Chess Clock by Chess.com or Grandmaster Chess Clock have ads?
Grandmaster Chess Clock shows ads; Chess Clock by Chess.com does not.
Which is updated more often, Chess Clock by Chess.com or Grandmaster Chess Clock?
Chess Clock by Chess.com ships an update every 3 months, and Grandmaster Chess Clock every 2 days. Most recently, Chess Clock by Chess.com was updated on September 24, 2026 and Grandmaster Chess Clock on July 21, 2026.

Other comparisons