Chrono is a calm, precise time tracker that works entirely offline. No account, no ads, no data collection — your hours belong to you.
TRACK YOUR TIME
• One-tap stopwatch with a large, clear display
• Organise work into tasks and colour-coded categories
• Add a note to any session ("Chapter 4", "lecture prep"…)
• Forgot to start the timer? Add sessions manually
STAY ON TARGET
• Set a daily goal and watch the progress bar fill as you work
• Focus-session alert: a gentle chime when a session reaches your chosen length
• Optional daily reminder notification at the time you pick
SEE YOUR PROGRESS
• Today, this-week and day-streak counters
• Last-7-days chart
• Breakdown by category and by task
• Full session log — edit or delete any entry
YOUR DATA, YOURS ONLY
• Everything is stored locally on your device
• Export sessions to CSV (opens directly in Excel, decimal hours)
• Full JSON backup and restore for moving to a new phone
• No internet connection ever required
Built for students, researchers, freelancers — anyone who wants an honest record of where the hours go.
Release notes (first release):
First release. Offline timer with tasks & categories, daily goal, 7-day chart, streaks, session log with editing, focus-session alert, daily reminder, CSV/JSON export & import.