New ✨ Version 0.7 is out: now built for foldables (Galaxy Z Fold split screen and dual-screen layouts) Peptides app icon

Peptides

A free, private peptide dose tracker for Android.

Log doses, keep track of every vial, and rotate injection sites. No account, no ads, and it never goes online.

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What it does

Dose logging & reminders

Log a dose in one tap. Daily, weekly, cycle and as-needed schedules, step-up (titration) plans, and on-time reminders.

Vial inventory & batches

Enter the mg and BAC water and it works out the concentration, units per dose, what's left and the beyond-use date. Track batch splits, reserves and supplies too.

Injection-site rotation

A front and back body map shows where you've been lately, so you can pick a fresh site every time.

Body metrics

Weight trends with goals, read from Health Connect or imported from a Renpho smart-scale export.

Backup, restore & PDF reports

Back up to a file you control and restore it on a new phone. Export JSON or CSV, or make a clean PDF report.

Fold-optimized layout New in 0.7

Lists and details side by side with a navigation rail on big inner screens, the familiar phone layout on the cover screen, and full split-screen support.

Preview

Design previews of the foldable layout that ships in 0.7, shown with made-up sample data.

Today dashboard on a foldable: doses, next dose, low stock, supplies, weight trend and injection-site map
PreviewToday dashboard: doses, next dose, low stock, weight and sites at a glance.
Compact Today screen showing logged doses and an as-needed dose
PreviewCompact Today view for split screen.
Inventory list with a vial detail pane showing contents, batch split, protocol and history
PreviewInventory: each vial's contents, batch and history side by side.

Made for foldables

On a big inner screen Peptides spreads out into panes. You get today's doses, stock and trends together, and lists open their details beside them. Fold it closed and you're back to a one-column phone layout.

New in version 0.7.

Download for Android

Download v0.7 (APK, 10.9 MB)
Foldable-ready

Android may ask you to allow installs from your browser. Tap Settings, allow it, then come back and tap Install.

Works on Android 8.0 and up. It's installed directly (sideloaded), so Android will ask you to allow "Install unknown apps" the first time. New installs start empty. Nothing personal comes bundled.

What's new in 0.7

  • Built for foldables: list and details side by side on the inner screen, phone layout on the cover screen, and split-screen support. Drag a photo or PDF report into another app.
  • Clearer vial cards: each vial leads with what's in it now, like "4.7 mg in 0.7 mL", plus strength and doses left.
  • Batches: vials split from one mix are grouped, with a batch summary and a history for each vial.
  • Plan storage: a step-by-step planner for a new batch (keep as powder, split and freeze, or make a concentrate). You enter the fridge life from your own source.
  • Vial colors: pick from 12 colors per vial, or keep the compound's color.
  • Daily export: CSV and JSON files written once a day to a folder you choose, with no internet access needed.
  • Better PDF report: the weight chart is fixed, plus a daily weigh-in table.
  • Gentle same-site notice when a site already has a shot that day, and a "Support the app" link.

Updating from 0.6? Install over it. Your data is kept and backed up first.

Private by design

Peptides doesn't request internet access. You don't sign in, and there are no ads, analytics or servers. Your logs stay on your phone unless you export or back them up yourself.

Support the app

Peptides is free. If it helps you, you can buy me a coffee to support new features like the foldable layout.

Buy me a coffee