Fitness, HIIT & strength training timer. Track your progress!

Fit Chronos

Turn every workout into performance!

Do you spend more time looking for your timer than actually training? Fit Chronos is the smart fitness timer that keeps you focused on what matters most: move, improve, and beat your records.

Professional Timer

• High-precision stopwatch with 100 ms refresh rate.
• Custom countdown from 5 seconds to 10 minutes.
• Adjust duration during a cycle or for the next one.
• Multi-sensory alerts: sound, 2-second vibration, and LED flash.
• Independent configuration for each exercise type.

Training Modes

• Workout (Strength Training): configurable sets, reps, and rest time.
• Stretch: activity/rest cycles for dynamic stretching.
• Flexibility: custom stretching routines.
• Exercises: general training with timer.

Tracking & Statistics

• Automatic recording of every session.
• Total duration, active time, rest time, and efficiency ratio.
• Full history with interactive charts.
• Full-screen view to analyze your progress.
• Custom notes for each session.

Custom Alerts

• Built-in sound for transition beeps.
• Configurable vibration.
• LED flash, depending on device availability.
• Enable or disable each alert type by mode.

Cloud Sync

Optional — available with DevLife packs.

• Automatic backup to MIT-DevLife.
• Access your data across multiple devices.
• Personalized AI insights based on your performance.
• PDF export of your statistics.

Security

• Passkey authentication, including biometrics and security keys.
• Local data stored in SQLite.
• Privacy respected 100%.

Languages

• Full interface available in French and English.
• Instant language switching in settings.

Whether you do strength training, HIIT, stretching, or cardio, Fit Chronos is the training companion that never lets you down. Download it now and start improving!