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07 · Habits & health

Plainfast Icon

Plainfast

The honest fasting timer.

Start a 16:8, 18:6, 20:4 or OMAD fast in one tap and watch a calm dial count the hours. No sign-up quiz, no account, no ads, and every fast you log stays in your history, free.

Download on the App StoreGet it on Google Play
Plainfast fasting timer screenshot

Features

03
  1. 01

    A plain dial

    Time elapsed, time left and your current phase at a glance, with home screen widgets and reminders for the start and end of each fast.

  2. 02

    Fasting phases

    A 10-phase timeline of what typically happens as a fast goes on, from glycogen use to ketosis, and the clock keeps running through 24, 36 or 72 hour fasts.

  3. 03

    Full history, free

    Every fast, streak and stat stays in your history at no cost, with weight, mood and glucose logs and a CSV export.

How it works

03
  1. 01

    Pick a plan

    Choose 16:8, 18:6, 20:4, OMAD or your own fasting target.

  2. 02

    Start the fast

    One tap starts the timer. The dial shows how far along you are and which phase comes next.

  3. 03

    Keep the record

    Each fast lands in your history with streaks and stats, ready to export whenever you want.

Honest by design

Plainfast opens with the timer, not with a quiz or a paywall.

  • No account and no sign-up quiz.
  • No ads.
  • Your fasts stay on your device; analytics only if you opt in.
  • Free core with full history. Premium (monthly, yearly or a one-time lifetime unlock) adds custom presets, past fasts and correlation charts.

Start your next fast

Download Plainfast and start a 16:8 fast in one tap.

Download on the App StoreGet it on Google Play

Plainfast is a timer and a log, not medical advice. If you are pregnant, diabetic, take medication or plan a fast longer than 24 hours, talk to your doctor first.