The quick answer is conditional: choose 1Chess Clock when the repository-documented offline Android setup, no-account flow, and Fischer or Bronstein modes match your game. Choose the Chess.com Chess Clock when the current Google Play listing's portrait-and-landscape support, favorite controls, or multi-stage controls matter more. Neither source proves that one app is universally better, and neither comparison is a substitute for checking the rules of a particular event.
Quick answer: who should choose what
1Chess Clock is a sensible starting point for a player who wants one Android phone beside the board, no account, and a clock that works offline. The app source also documents a portrait clock, two player panels, configurable starting times, Fischer, Bronstein, simple delay, pause, and saved settings. If your priority is a broad list of written features, the Chess.com listing states that its clock has large buttons, portrait and landscape layouts, favorite time controls, Fischer and Bronstein increments, simple delay, multiple stages, automatic and manual pause, and sounds.
Use the getting-started guide to see the 1Chess Clock flow before choosing. For a second comparison based on a different listing, read 1Chess Clock vs Chess Clock by MansoorCM.
Criteria and evidence
The table separates 1Chess Clock evidence from the current Google Play listing. “Not stated” means the source was not used as proof, not that the feature is impossible.
| Criterion | 1Chess Clock | Chess.com Chess Clock listing |
|---|---|---|
| Offline and account wording | The plan says offline and no account required. | The listing mentions playing offline; an account requirement is not stated in the feature copy reviewed. |
| Time-control modes | Repository and plan document Fischer and Bronstein; the source also includes simple delay. | The listing states Fischer, Bronstein, and simple delay, plus per-move delay or bonus time. |
| Multi-stage controls | No multi-stage feature is documented in the 1Chess Clock source reviewed. | The listing explicitly describes multiple-stage controls. |
| Orientation and hand-over | The current app source locks the Android app to portrait and uses two touch areas. | The listing states portrait and landscape support and large buttons. |
| Pause and feedback | The source includes manual pause, lifecycle pause, sounds, and haptic settings. | The listing states automatic and manual pause plus sounds. |
The comparison is therefore about fit and evidence scope. It is not a claim that the listing's features have been independently tested in this guide.
Best for
Choose 1Chess Clock if you prefer a focused phone-at-the-board setup, want the plan's offline and no-account claims, or need Fischer and Bronstein without relying on a multi-stage tournament control. Choose Chess.com if landscape orientation, large touch buttons, favorite controls, sounds, or a listed multi-stage format are important to your selection. If you are deciding among common formats first, the common time-control guide explains the difference between a plain countdown and Fischer increment.
Who should not choose either on this evidence alone
Do not choose either app solely because a page mentions a feature you need for an official event. The sources here do not establish tournament certification, arbiter approval, or acceptance by a particular organiser. A player who needs a dedicated physical device, a required event procedure, or a feature not documented in the relevant source should ask the organiser and confirm the exact setup before play.
Limitations
This page uses the 1Chess Clock repository and plan plus one Google Play listing. Listing copy can change, and the comparison does not inspect the competitor's current UI or test every time-control combination. The 1Chess Clock portrait restriction is taken from the current source, while the competitor orientation claim is taken from its listing. Treat the table as a dated evidence summary, not a ranking.
Check date and next step
The competitor listing and the repository-backed 1Chess Clock details were checked on 2026-10-03. If 1Chess Clock fits your use case, open the phone setup guide and agree on the time control before the first move. If your main choice is between phone and dedicated hardware, use the phone-versus-physical-clock comparison.