Dandi: Fasting Timer

YOUR OWN RHYTHM
Choose 12:12, 14:10, 16:8, 18:6, 20:4, 23:1 or a custom plan. Adjust start/end times, check your eating window and review your calendar. Educational stage cards include evidence levels and sources; timing varies between people and is not a body measurement.

SMALL STEPS TOGETHER
Grow your penguin with XP, collect badges, keep a streak and take a rest day. Record feelings and optional notes, weight in kg and water in mL. Light/dark themes, notifications and home widgets help you follow your own routine.

LOCAL RECORDS, NO ACCOUNT
Core functions work offline. BirdLab has no record server. Android backup, if enabled, may back up records to your own Google account. Export/import JSON backups yourself; importing replaces existing records. Choose whether and where to share a result image.

WITH ADS
Core timer, records, statistics, notifications and basic widgets never require watching ads. Optional rewarded ads provide shields and skins; banners and some completion-transition interstitials are included. Ads and support pages need internet. Ad availability and privacy choices can vary.

English, Japanese, Traditional Chinese, French and Korean. Existing records are preserved when updating.

For adults 18+ only. Consult a healthcare professional before fasting, especially during pregnancy/breastfeeding, with an eating disorder history, underweight, relevant illness or glucose-lowering medication. Stop if you feel unwell. No promised weight-loss or health outcome.

Dandi is not a medical device and does not diagnose, treat or prevent any condition. Consult a healthcare professional. Health outcomes are not guaranteed.

Support: support@birdlab.net

Recent changes:
Updated to the latest Android SDK and libraries for improved stability.