Blitz: Fischer Chess Clock APK

Blitz: Fischer Chess Clock

Overview

• Blitz: Fischer Chess Clock is a digital chess timer designed specifically for fast-paced blitz games.

• It provides quick, accurate, and fair time tracking for both players, ensuring that every second counts in high-speed matches.

• The app focuses on simplicity, precision, and compliance with official chess timing standards while maintaining a strong commitment to user privacy and system security.

Designed for Blitz Play

• The clock is preconfigured with the standard 5+3 Fischer timing system, giving each player 5 minutes at the start of the game plus a 3-second increment for every move made.

• It follows FIDE timing regulations, meaning the initial display for the 5+3 format is 5:03 rather than 5:00, accurately reflecting competitive timing conventions.

• Built to be privacy-friendly, the app contains no advertisements, requests no unnecessary permissions, and collects no user data.

Fast and Intuitive Controls

• A single screen tap switches the active player instantly, allowing games to flow smoothly without delay.

• Players can adjust time and increments quickly by dragging horizontally or vertically on the screen, making setup effortless.

• Haptic feedback is available when the phone’s ringtone is set to vibrate, providing a tactile confirmation for each clock press.

• Back gestures are used to pause the match or reset the clock, ensuring intuitive and reliable control during play.

Robust Time Implementation

• The app relies on the most accurate time source available on the device, minimizing discrepancies even in long sessions.

• The timing engine has been fully tested with 100% code coverage, guaranteeing consistent performance and dependable operation under any condition.

Free, Secure, and Modern

• Released as free software with reproducible builds, ensuring transparency and trust in its source and binaries.

• Fully compliant with Android 15 security standards, offering strong protection against vulnerabilities.

• Supports memory tagging on compatible hardware to detect and prevent memory-related errors, enhancing overall reliability and safety.

FAQ

Q: What makes this clock different from other chess clock apps?

A: The biggest difference is its laser focus on the blitz format and the Fischer timing system. It’s preconfigured for 5+3 games, meaning each player starts with five minutes and gets three extra seconds per move. Plus, it’s designed to run smoothly with minimal interface clutter and zero intrusive features.

Q: Why does the clock show 5:03 at the start instead of 5:00?

A: That’s actually in line with FIDE (the International Chess Federation) standards. The 5:03 start time represents five minutes plus the first move’s three-second increment, mirroring how tournament clocks function in real blitz matches.

Q: Can I change the time or increment settings?

A: Yes, absolutely. Even though the app is tuned for the 5+3 blitz format, you can quickly adjust the time or increment by dragging on the screen — horizontally or vertically — before your match starts. It’s fast and intuitive, so setup takes just a few seconds.

Version History

v2.0.5——28 Oct 2025

A minimalist Fischer chess clock for Android. Download the latest version of Blitz: Fischer Chess Clock to enjoy new features and updates immediately!

*2.0.5

• Restore vertical and horizontal text centering

• Restore predictive back on Android 15

• Update dependencies

*2.0.2

• Update dependencies

*1.8.8

• Use tabular numerals instead of a monospaced font

• Adapt text size to default device font

• Enable memory tagging in asynchronous mode

• Update dependencies