Terms of service
Service and eligibility
BirdLab provides Dandi, a free, ad-supported fasting timer and habit journal for adults aged 18 or older. Features include preset/custom fasting plans, start/end edits, goal extension, eating-window countdowns, educational stage guidance with evidence/source links, records, calendars, statistics, streaks, shields, rest days, weight/water logs, XP, penguin growth, badges, skins, notifications, widgets, share images and JSON backup/import. No account or in-app purchases are required. Core timer, records, statistics, notifications and basic widgets do not require watching ads.
Health and safety
Dandi is not a medical device, diagnosis, treatment, prevention tool or substitute for professional medical advice. Results and weight changes are not guaranteed. Stage descriptions are general educational information with evidence levels and sources; biological timing varies substantially and is not measured by the app. Consult a healthcare professional before fasting if pregnant, breastfeeding or planning pregnancy, underweight, with an eating disorder history, kidney/liver/heart disease, taking glucose-lowering medication or insulin, or receiving treatment for another condition. Stop fasting if you feel unwell, dizzy, unusually tired or have palpitations, and seek medical help when needed. The app does not recommend excessive fasting.
Virtual items and ads
XP, levels, badges, shields and skins are in-app features without cash value; they cannot be purchased or exchanged for money. Rules may change as the service improves. AdMob provides banners, optional rewarded ads and interstitial ads after completion celebrations. Rewards are granted only after successful rewarded-ad completion. Failed loads do not grant a reward; try again later. Ads are selected by Google and advertisers; BirdLab cannot preview every ad.
Data and backups
Records and settings are kept locally; BirdLab has no record server. Android backup, if enabled, follows Google’s policies. You control exported JSON files and shared images. Importing replaces existing records with the imported file’s contents. Reset can delete records. BirdLab cannot recover data lost through deletion, device failure or loss, or an unbacked-up device change. See the privacy policy for advertising and data details.
Acceptable use and intellectual property
Do not commit reward fraud, deliberately generate invalid ad clicks, unlawfully modify, reverse engineer or redistribute the app, record/share another person’s information without permission, or interfere with lawful service operation. App designs, the Dandi character, text, icons and software belong to BirdLab or their respective rights holders. Personal sharing of your own result cards is permitted. Open-source and font licenses, including Pretendard, are available in Settings → Open-source licenses. Nothing here restricts rights granted by those licenses or mandatory law.
Changes and responsibility
Features may be added, changed or discontinued. Ad outages, operating-system changes, power-saving settings, notification permissions and exact-alarm settings may affect operation. You remain responsible for your health and fasting decisions. To the extent permitted by law, liability is limited except for intentional misconduct or gross negligence. Mandatory consumer rights are preserved. Changes are announced at least 7 days ahead, or 30 days ahead when disadvantageous to users.
Applicable law and contact
These terms are governed by the laws of the Republic of Korea, subject to any mandatory consumer protections that apply to you. Disputes are handled by courts with jurisdiction under applicable law. Contact BirdLab at support@birdlab.net.
Dandi is not a medical device and does not diagnose, treat or prevent any condition. Consult a healthcare professional. Health outcomes are not guaranteed.