There is no single best Android chess clock app for every game. Choose 1Chess Clock if its repository-backed offline, no-account setup, portrait layout, and Fischer/Bronstein modes fit your board. Choose Chess.com if its listing's large buttons, landscape option, favorite controls, sounds, or multi-stage controls matter. Choose MansoorCM if the listing's unequal times, in-game adjustment, editable controls, or dark theme matter. Choose Chrono Chess if its listing's configurable timer, named game speeds, increment, color switching, offline use, and no-ads/no-account wording match your needs.
This page is a feature-by-feature comparison, not a hands-on review. I did not run direct device tests; the 1Chess Clock side comes from this repository and plan, and the other three sides come from their Google Play listings checked on 2026-10-03.
Quick answer: who should choose what
Start with the requirement that could change your game setup. If you need offline use and no account according to the product plan, 1Chess Clock is the relevant candidate. If you need a listed multi-stage control or portrait and landscape support, the Chess.com listing is the relevant evidence. If you need listed unequal player times, adjustment during a game, or edit/delete controls, the MansoorCM listing is the relevant evidence. If you want a simple listed offline timer with increment, color switching, and blitz/rapid/classical labels, the Chrono Chess listing is the relevant evidence.
For the 1Chess Clock flow itself, read getting started. To understand the numbers before selecting an app, use the time-control guide.
Criteria and evidence
| Criterion | 1Chess Clock | Chess.com listing | MansoorCM listing | Chrono Chess listing |
|---|---|---|---|---|
| Offline and account wording | Plan: offline, no account required. | Listing mentions playing offline; account requirement is not stated in the reviewed feature copy. | Offline and account wording is not used as evidence here. | Listing says works offline and no accounts. |
| Time-control features | Fischer, Bronstein, simple delay, presets, and custom settings are documented in the source. | Fischer, Bronstein, simple delay, per-move delay/bonus, and multi-stage controls are listed. | Custom, Fischer, Bronstein, delay, popular controls, and edit/delete are listed. | Configurable timer, move increment, and blitz/rapid/classical are listed. |
| Unequal player times | The source supports separate starting times. | Not used as evidence from the listing. | Listing states different times for both players. | Not stated in the listing. |
| Orientation and display | Current source locks Android to portrait and includes display modes/themes. | Listing states portrait and landscape, large buttons. | Listing states portrait and landscape, dark theme. | Listing mentions light and dark mode; orientation is not stated. |
| Pause or hand-over | Source documents tap hand-over, manual pause, and pause on interruption. | Listing states automatic/manual pause and sounds. | Listing states pause and automatic pause on interruption. | Pause behavior is not stated in the feature copy reviewed. |
Best for
1Chess Clock is best for the requirements its own source actually documents: an offline, no-account Android clock with configurable chess timing and a portrait board setup. Chess.com is a fit for players who value the listing's multi-stage controls, favorite controls, large buttons, or landscape support. MansoorCM is a fit for players who value unequal times, in-game time adjustment, editable controls, or dark theme. Chrono Chess is a fit for players who value a compact listed feature set around increment, color switching, named game speeds, offline use, and no accounts. “Best” here means best match to a stated requirement, not a universal ranking.
Who should not choose from this page alone
Do not select any app solely for an official event based on a store description. None of these sources establishes tournament certification, arbiter approval, or a particular organiser's equipment policy. Do not assume an unlisted mode exists, and do not treat listing language as a direct test result. If you need a physical device or a required control, ask the organiser and verify the exact app or clock before play. The phone-versus-physical-clock guide covers that category decision.
Limitations
The comparison is dated evidence, not a lab test. Listing copy and app behavior can change, and this guide does not score accuracy, latency, touch response, readability, sound, battery use, accessibility, or setup friction. 1Chess Clock claims are limited to the repository and plan; competitor claims are limited to the three cited Google Play listings. No screenshots from competitor apps are used here.
Check date and next step
All four evidence sets were checked on 2026-10-03. If your requirement is simply a reliable pre-game routine, read the common time-control guide and then the phone setup guide. Recheck the relevant listing before making a choice because this page intentionally does not freeze future feature changes.