Chess Clock Ultra app icon

Chess Clock Ultra

The essential dual-player chess clock for over-the-board play. Two timers, tap to switch, every time control you need — Blitz, Rapid, Classical and fully custom. Free on iPhone, iPad and Android.

Free iOS · iPadOS · Android Rated 4+ by netAdapt

Every time control you need.

Two independent timers, one tap to switch turns. Simple, reliable, and beautifully designed for over-the-board chess.

Whether you're playing a quick blitz game at a coffee shop or a serious classical match at your chess club, Chess Clock Ultra has you covered with preset and fully customisable controls. Multi-stage time controls support tournament play out of the box.

Adaptive portrait and landscape layouts that look great on any device.

Chess Clock Ultra running on iPhone

Free

iPhone · iPad · Android · Rated 4+

App Store

OR

Google Play

§ 01 — Time controls

Blitz, Rapid, Classical —
or build your own.

Pre-loaded presets for every common format and a custom builder for anything else.

  • № 01

    Blitz

    Fast-paced games for quick matches. Preset blitz time controls ready to go.

  • № 02

    Rapid

    A balance of speed and strategy. Enough time to think, fast enough to keep it exciting.

  • № 03

    Classical

    Long time controls for serious, thoughtful tournament-style games.

  • № 04

    Custom

    Build your own with multiple stages for complete flexibility.

§ 02 — Increment types

Fischer, Bronstein,
delay or none.

Every common increment system supported faithfully.

  • Fischer

    Time added per move

    The most widely used increment in modern chess. Time is added after each move.

  • Bronstein

    Up to move duration

    Time added up to move duration. You never gain time, only avoid losing it on quick moves.

  • Delay

    Simple Delay

    A countdown before the clock starts ticking. Think for free during the delay period.

  • None

    Pure countdown

    Sudden death. A fixed amount of time and nothing more. Classic chess clock behaviour.

§ 03 — More features

Built for actual play.

The details that matter when you're across a board from someone.

  • № 01

    Multi-stage support

    Different time settings after a specified number of moves, just like real tournament play.

  • № 02

    Favourites

    Star your frequently used time controls for quick access. Get playing faster.

  • № 03

    Adaptive layout

    Works beautifully in portrait and landscape. The layout adapts to your device and orientation.

§ 04 — Frequently asked

Questions, answered.

For app-store searchers and curious humans.

Is Chess Clock Ultra free?
Yes. Chess Clock Ultra is free on the App Store and Google Play. No subscriptions or required purchases.
What time controls does it support?
Blitz, Rapid, Classical and fully custom time controls. Multi-stage tournament time controls (e.g. 40 moves in 90 minutes, then 30 minutes for the rest).
What increment types are supported?
Fischer (time added after each move), Bronstein (time added up to move duration), Simple Delay (a countdown before the clock starts), and No Increment (pure countdown).
Does it work in landscape and portrait?
Yes. Chess Clock Ultra has adaptive layouts that work beautifully in both portrait and landscape orientations on phones and tablets.
Can I save my favourite time controls?
Yes. Star any time control to access it quickly from your favourites list — get playing faster.
What devices are supported?
iPhone, iPad and Android phones and tablets. Free downloads on the App Store and Google Play.
Who makes Chess Clock Ultra?
netAdapt Ltd, an independent UK software studio in Newbury, Berkshire. We have been building chess apps and platforms since 2001.