Off by default, so a friend's schedule doesn't buzz your phone.
Appearance
Accent colour used across the app. The last square is your own custom colour.
Substance presets
Typical starting half-life and Tmax values offered when you turn on substance tracking — not medical guidance, and always editable per tracker. Edit, add, or delete presets here.
NameHalf-lifeTmax
App
Versionloopr-v-2026-10-09-01-00
Dashboard
Time to log it again.
Substance settings
Typical adult values — not medical guidance, and always editable. Pick Custom for anything else.
If you log in casual units (cups, ml), enter how much active substance is in one — e.g. "95" and "mg" for 1 cup ≈ 95 mg caffeine. Then the chart shows an estimated amount instead of % of peak. Leave both blank to skip.
Quick log?
Sign in to use Loopr
Loopr now keeps your trackers in your account so they sync across your devices. Sign in once and you stay signed in.
They will see this card with its full history once signed in to Loopr with that email. Editors can log, change and delete entries, rename the card and change its settings, but can never delete the card or share it on. Change a permission in the list above and press Save, or remove someone at any time.