Preferences
Allow a few missed days per month without breaking your streak — for sick days, travel, or rest.
Help
Backup & restore
Export your practices, entries, and saved charts as a single JSON file. Import on another device to merge into your current data, or replace everything.
Google Drive sync
Sync your data to Google Drive for cross-device access. Backups are stored in a private app folder that only BKOne Chart can access.
Note: Google Drive sync works only in the browser. If you are using the app, please use the local Download & Restore feature above instead.
Your data
Demo data
Load 6 months of sample data for 3 personas (dedicated, regular, beginner) to preview how insights look.
Danger zone
Permanently wipes every practice, entry, and saved chart. Built-in charts and your preferences are kept. Export a backup first if you want to keep your data.