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Comparison

Chess Clock vs OTB Clock

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

Head to head
Chess Clock - Game Timer
Chess Clock

Professional chess clock

Free
🔧 Utilities
No ratingsView app →
OTB Clock
OTB Clock

Chess Clock & Timer

Free
🔧 Utilities
No ratingsView app →
About

Chess Clock

Features
Read full description

Master your chess games with the ultimate chess clock app! Whether you're playing bullet, blitz, rapid, or classical chess – this timer has everything you need. ADVANCED INCREMENT TYPES • Fischer: Time added after each move • Bronstein: Delay before countdown starts • Simple Delay: Fixed pause before clock ticks • Perfect for tournament and casual play CUSTOM TIME CONTROLS • Create your own presets with any time and increment • Handicap mode: Set different times for each player • Multi-stage controls for FIDE-style tournament games • Save and reuse your favorite configurations BEAUTIFUL THEMES • 8 stunning clock skins to personalize your experience • Chess.com-inspired design • Walnut, Marble, Ocean, Neon, Tournament, Ice, and Fire themes • Dark and Light mode support • Follows your system theme preference SOUNDS & HAPTICS • Satisfying tap sounds when switching turns • Low time warning alerts • Timeout notifications • Haptic feedback for responsive gameplay INTUITIVE DESIGN • Large, easy-to-read timer display • Simple tap-to-move interface • Upside-down display for opponent viewing • Screen stays awake during games • Quick pause, resume, and reset controls PERFECT FOR • Casual games with friends • Chess club meetings • Tournament practice • Speed chess training • Any timed board game Download Chess Clock now and never lose track of time in your games again!

About

OTB Clock

Features
Read full description

OTB Clock is a precise chess clock for over-the-board games. Supports all standard time controls from bullet to classical. Features: - Bullet, Blitz, Rapid, and Classical presets - Fischer increment support - Move counter - Tap-to-switch interface - Screen stays on during games - Custom time control creation Premium unlocks all time control presets and custom time controls. Free users get 3-minute, 5-minute, and 10-minute presets. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://frexx.top/privacy Privacy Policy: https://frexx.top/otbclock/privacy.html Terms of Use: https://frexx.top/otbclock/terms.html

Screenshots

Chess Clock4 screens
OTB Clock3 screens

Verdict

The call

The clearest difference is in-app purchases: Chess Clock at none against OTB Clock's 1. Chess Clock also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.1 vs 17.0). OTB Clock's advantage is ads (none vs shown). On price 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. OTB Clock sells 1 in-app purchase, starting at $19.99 per year. Chess Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Chess Clock ships an update every 5 days, OTB Clock every 2 weeks. The most recent releases landed on September 15, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 2 level
Chess Clock versus OTB Clock: the parameters behind the verdict, then further details
ParameterChess ClockOTB Clock
PriceFreeFree
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size72 MB1 MB
Age rating4+4+
DeveloperDawid Wrzesinski杰 向

In-app purchases

None

Chess Clock

No in-app purchases

1 purchases

OTB Clock

Subscriptions1
  • Premium — Yearly3 Days trial$19.991 Year

Questions

Is Chess Clock free?
Chess Clock is free to download, with no in-app purchases.
Is OTB Clock free?
OTB Clock is free to download, with in-app purchases available.
Do Chess Clock or OTB Clock have ads?
Chess Clock shows ads; OTB Clock does not.
Which is updated more often, Chess Clock or OTB Clock?
Chess Clock ships an update every 5 days, and OTB Clock every 2 weeks. Most recently, Chess Clock was updated on September 15, 2026 and OTB Clock on September 19, 2026.

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