Chess Clock vs OTB Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chess Clock
This app provides a reliable and accurate chess clock for various game formats, including blitz and rapid play. It offers essential features for over-the-board matches with a clean interface and supports common timing increments and delays.
- Fischer increment support
- Bronstein delay support
- US delay support
- Instant turn switching
- Clear flag detection
- Pause game functionality
- Haptic feedback
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Chess Clock - Tournament Timer is a fast, accurate two-player chess clock built for real over-the-board games. Play blitz, rapid, classical and tournament chess with simple controls and reliable timing. Choose from popular game lengths and use Fischer increment, Bronstein delay or US Delay directly from the main clock setup. No ads. No subscription. Just play chess. FREE FEATURES • 1, 3, 5 and 10 minute time controls • Fischer increment • Bronstein delay • US Delay • Common increment and delay values • Quick tournament presets • Instant tap to switch turns • Automatic tenths display under 1 minute • Clear flag-fall detection • Pause and resume games • Record White wins, Black wins and draws • Game history with move count, time control and timestamps • Haptic feedback and end-of-game signal PRO - ONE-TIME UNLOCK Want more control? Unlock Pro once for advanced customization: • Set custom game lengths • Create custom increment and delay values • Fine-tune time controls beyond the standard options • Access advanced custom tournament setups One purchase. No subscription. No ads for anyone. Whether you're playing a quick blitz game, a club match or a longer tournament game, Chess Clock gives you a clean, distraction-free clock with the timing modes you need.
OTB Clock
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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
Verdict
Chess Clock and OTB Clock are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Chess Clock sells 1 one-off in-app purchase and OTB Clock sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.
Chess Clock ships an update every 3 weeks, OTB Clock every 2 weeks. Both last shipped on September 19, 2026.
| Parameter | Chess Clock | OTB Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Liamyte OÜ | 杰 向 |
In-app purchases
Chess Clock
- Pro Unlock – Lifetime$3.99
OTB Clock
- Premium — Yearly3 Days trial$19.991 Year
Questions
Is Chess Clock free?
Is OTB Clock free?
Do Chess Clock or OTB Clock have ads?
Which is updated more often, Chess Clock or OTB Clock?
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