CaliperGet the app
iOS · GLP-1 & peptides

The precise tracker for real protocols.

Caliper logs every dose you record and keeps your stack, schedule, and trends in one calm, private place — so you can manage your protocol with confidence.

Download on the App StoreGet it on Google Play

Caliper organizes your data — it doesn't recommend a dose, schedule, or outcome.

Caliper's home screen: today's logged doses, an active-in-body readout, and the user's compound stack.
How it works

Organize, log, and watch the loop close.

The same simple rhythm every dose — so staying precise takes seconds, not spreadsheets.

  1. 01

    Save your vial

    Enter your vial strength, the water you added, and the concentration — Caliper remembers it, so you are not re-reading a label every week.

  2. 02

    Log the dose

    One tap logs it. A live countdown shows when the next dose is due, and an “active in body” readout estimates how much is still working, based on each compound’s half-life.

  3. 03

    Watch your trends

    Weight, side effects, and dose changes line up on one timeline — so the patterns in your own data are easy to see, all on your device.

A look inside

The whole protocol, on one screen at a time.

From the first draw to your long-run trends — here's Caliper doing the organizing, so you don't have to.

Caliper progress screen showing a weight trend heading toward a goal line, with summary stats and a photos tab.
Logging progress

Watch your progress take shape.

Log weight and private progress photos, then see the trend against your goal with dose changes marked — so you can spot when things shifted. Photos never leave your device.

Caliper insights screen showing a nausea-versus-dose chart and a 14-day symptom check-in grid.
Reviewing side effects

See side effects in context.

Log symptoms alongside your dose changes and watch them line up — a nausea-versus-dose chart, injection-site rotation, and a check-in grid. It shows what changed, and always points you back to your provider.

Caliper supplies screen: an active Retatrutide vial with volume left and its use-by date, a Wegovy pen, and sealed stock for three more compounds.
Managing supplies

Know what you have on hand.

Vials and pens, sealed and active, with the use-by dates you entered — so nothing quietly runs out or passes its date in a drawer.

Built for real protocols

Everything your protocol needs, nothing it doesn't.

From the first reconstitution to your long-run trends — precise, private, and built for how people actually run stacks.

MTWTFSS
Mon · Wed · Fri

Flexible scheduling

Daily, several times a day, specific weekdays, every N days, or on/off cycles like 5-on / 2-off. Match how your protocol actually runs.

  • Tirzepatide
  • BPC-157
  • TB-500

Multi-compound stacks

Track several compounds at once, each with its own schedule and concentration — your whole stack in one view.

Active vialUSE BY 14 NOV
Opened 17 Oct

Inventory & expiry

Log vials (with the reconstitution and use-by dates you enter) and pens, so nothing quietly passes its date in a drawer.

Progress trends

Weight over time with your goal and dose-change markers overlaid, so shifts in your own data are easy to spot.

Nausea ↓Energy ↑

Side effects & Insights

Log symptoms alongside your dose changes. An on-device Insights view surfaces patterns — and always points you to your provider.

CCalipernow

Tirzepatide is due

Tap to log your dose

Dose reminders

A gentle nudge when a dose is due, with a live countdown to the next one. Stay on schedule without watching the clock.

Local-first by design: your health data lives on your device. Never sold, never shared with advertisers or analytics.

Caliper organizes your data — it doesn't recommend a dose, schedule, or outcome.

Private by default

Local-first by design — your health data lives on your device. Never sold, never shared with advertisers or analytics.

Descriptive, not prescriptive

Caliper records and arranges what you enter. For any dose or safety question, it points you to your healthcare provider.

For adults 18+

Built for adults managing their own medications and research protocols. Not intended for anyone under 18.