Back to home

Frequently Asked Questions

Everything you need to know about FastTime.

Do I need an account?

No. FastTime works completely offline. No sign-up, no login, no email required.

Where is my data stored?

Everything — fasting logs, weight history, settings — is stored locally on your phone. We never see it.

How do I transfer data to a new phone?

Go to Settings > Backup & Restore on your old phone and create a backup file. Save it to Google Drive or email it to yourself. On your new phone, install FastTime, download the backup, then go to Settings > Backup & Restore and tap Restore.

Is fasting safe for everyone?

Intermittent fasting is generally safe for healthy adults, but it's not suitable for everyone. You should not fast if you are pregnant, breastfeeding, underweight, under 18, or have a history of eating disorders. Always consult a doctor before making significant changes to your diet.

What does Pro include?

FastTime Pro is a one-time purchase that removes all ads, unlocks 4 additional color themes, weight trend charts with log reminders, the ability to create multiple fasting plans, and data backup & restore. It also supports future development of the app.

How do I cancel a fast I started by mistake?

On the timer screen, tap the "End Fasting" button. You can also edit the start time if you just need to adjust it.

Why does the app need notification permissions?

Notifications remind you when your fasting window is about to begin or end. They're optional — the app works fine without them.

What are the metabolic stages?

As you fast, your body goes through different phases: Anabolic (digestion), Ketosis (fat burning), Autophagy (cellular repair), and Immune Rejuvenation (deep healing). FastTime shows you which stage you're in based on your elapsed fasting time.

Will I lose my data if I uninstall the app?

Yes. Since everything is stored locally, uninstalling deletes your data. Create a backup first if you want to keep it.