CaliperGet the app
iOS · GLP-1 & peptides

The precise tracker for real protocols.

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

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.
The reconstitution calculator

No more vial math in your head.

Compounded vials don't come dose-ready. You reconstitute the powder, then have to work out exactly how far to draw for your dose. Get it wrong and you're off by a lot.

Enter your vial strength, how much bacteriostatic water you added, and your dose. Caliper computes the exact draw — in units and milliliters — and shows you the mark to pull to.

  • Works for any concentration and any compound
  • Reads out in both insulin units and mL
  • Save a vial once, reuse its concentration every time

Caliper does the arithmetic on the numbers you enter — it doesn't recommend a dose, schedule, or outcome.

Caliper's dose screen: a syringe marked at 40 units with 0.4 mL to draw, and an injection-site rotation picker.
How it works

Calculate, log, and watch the loop close.

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

  1. 01

    Calculate your draw

    Enter your vial strength, your water, and your dose. Caliper computes the exact draw in units and mL — no mental math at the counter.

  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 showing two compounds with active-vial levels, use-by dates, and days of runway remaining.
Managing supplies

Never run out mid-protocol.

Track vials and pens with reconstitution and use-by dates, then see your runway — how many days of supply you have left at your current schedule — so you reorder in time.

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.

Supply leftREORDER SOON
12 days remaining

Inventory & runway

Log vials (with reconstitution and use-by dates) and pens, then see how many days of supply you have left — so you reorder in time.

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.