Now on the App Store

Lose the weight.Keep the muscle.

Shots, medication levels, protein and body scans — one calm place.

Tiro is the calm companion for your GLP-1 journey — weekly shots, medication levels, protein, and a camera body scan that shows progress your scale can’t.

Download on theApp StoreFree download

Free to start · No signup · Not medical advice

Free to start · No signup · A companion, not medical advice — always follow your prescriber’s plan.

Flat-vector illustration of a woman on a winding terraced path toward a teal lighthouse at dawn

Tiro home screen: streak, next dose, medication level and daily nutrition

A woman at the start of a winding terraced path toward a distant lighthouse at dawn

The lighthouse beam sweeping softly across the woman on the dunes

The woman resting on a terrace ledge, calmly holding a small injection pen

The terraced dunes rising and settling in one smooth wave toward the lighthouse

A terraced orchard garden beside the path, the woman holding a coral bowl

The woman standing beside the lighthouse at sunrise, the whole path behind her

Day one

Start whereyou are.

First shot or week forty — Tiro walks it with you.

The body scan

See your progress,not just the scale.

Waist, hips and body fat — progress the scale can’t show.

Shot day

Never miss a dose.Never reuse a site.

Weekly reminders, and a map that knows the next rested spot.

Between doses

Know how much isin your system.

Your medication level, estimated from every logged shot.

Food, recalibrated

Eat right for howGLP-1 changes you.

Smaller appetite, higher stakes. Tiro guards your protein floor.

Keep going

Your whole journey,one honest view.

Shots, meals, symptoms, scans — one honest place.

Day one

Start where you are.

First shot or week forty — Tiro meets you on the path and walks it with you.

Every medication, one companion

Works with every GLP-1.Including compounded.

Ozempic

Wegovy

Mounjaro

Zepbound

Semaglutide

Tirzepatide

Compounded

+ 30 more

Branded pens or compounded vials — Tiro knows your medication’s dose ladder, half-life and schedule, and models your levels for the exact compound you take.

Most GLP-1 apps track the shot.
Tiro tracks what happens next.

Typical GLP-1 app

Log your weekly shot & weight

Next-dose reminders

Injection-site rotation map

Estimated medication level between doses

Daily protein floor + per-meal targets

Snap-a-meal food scan

Camera body scan & composition trends

Get Tiro

Questions,
answered

: Semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound), plus compounded versions. The dose tools follow each drug’s standard label ladder.
: No. Camera body scans are processed on-device. The photos never upload — only the measurements you choose to save are stored, and only if you turn on sync.
: No. Tiro is a tracking companion, and its calculators are educational estimates. Always follow the dosing plan from your prescriber.
: The core tracking and all the web tools are free — no prescription, no signup required to start.
: Yes. Point your camera at the plate — no barcodes or database lookups. You can fine-tune the portion, and protein is counted before calories.
: Yes. Enter your vial concentration and Tiro handles the mg-to-units math; always verify against your pharmacy label.

From the journal

Straight answers about life on a GLP-1.

Read the blog

Illustration of a woman tracing a long turquoise wave that rises and crests, with fainter earlier waves beneath it

Dosing & Titration

What a GLP-1 Plotter Actually Shows You (And What It Can't)

A GLP-1 plotter estimates how your dose builds up and tapers between shots. Here's how to read the curve, why two plotters disagree, and what the number isn't.

Read article →

Illustration of two vessels holding the same particles at different concentrations, with a dropper above

Retatrutide Dose Calculator: The Reconstitution Maths, Explained Honestly

How retatrutide reconstitution maths works — mg to mL to U-100 units, the four common errors, and what is still unknown. Investigational drug, not medical advice.

Read article →

Illustration of two columns of equal height with their proportions reversed, a woman looking between them

Ozempic Rebound: Two-Thirds Back in a Year — and Not the Same Body

How much weight comes back after stopping a GLP-1, why it happens, and why regaining the number doesn't mean regaining the same body composition.

Read article →

Illustration of one tall column dividing into two shorter ones, and a sharp peak becoming two gentler waves

Splitting Your GLP-1 Dose: ~20% Lower Peak, No Trial Evidence

What splitting a weekly semaglutide or tirzepatide dose does to your levels, whether it really eases nausea, how splitting differs from microdosing, and why it's off-label.

Read article →

Illustration of a figure standing calmly on the line between a sunrise half and a night half

When to Inject Ozempic: Why the Day Beats the Hour

Why time of day doesn't change how Ozempic works, which injection day actually helps, whether site choice affects nausea, and why injection sites bruise.

Read article →

Illustration of two vessels filled to different levels, both tracing back to the same single dose

New Vial, Different Strength? You Could Draw Double by Mistake

Switching GLP-1 vial concentrations changes the units you draw, not your dose. How to read mg/mL, recalculate safely, and check before you inject.

Read article →

Dosing & Titration

What a GLP-1 Plotter Actually Shows You (And What It Can't)

A GLP-1 plotter estimates how your dose builds up and tapers between shots. Here's how to read the curve, why two plotters disagree, and what the number isn't.

Read article →

Retatrutide Dose Calculator: The Reconstitution Maths, Explained Honestly

How retatrutide reconstitution maths works — mg to mL to U-100 units, the four common errors, and what is still unknown. Investigational drug, not medical advice.

Read article →

Ozempic Rebound: Two-Thirds Back in a Year — and Not the Same Body

How much weight comes back after stopping a GLP-1, why it happens, and why regaining the number doesn't mean regaining the same body composition.

Read article →

Splitting Your GLP-1 Dose: ~20% Lower Peak, No Trial Evidence

What splitting a weekly semaglutide or tirzepatide dose does to your levels, whether it really eases nausea, how splitting differs from microdosing, and why it's off-label.

Read article →

When to Inject Ozempic: Why the Day Beats the Hour

Why time of day doesn't change how Ozempic works, which injection day actually helps, whether site choice affects nausea, and why injection sites bruise.

Read article →

New Vial, Different Strength? You Could Draw Double by Mistake

Switching GLP-1 vial concentrations changes the units you draw, not your dose. How to read mg/mL, recalculate safely, and check before you inject.

Read article →

The journey is yours

Make every week count.

Your shots, food, body and levels — one honest, beautiful place.

Download on theApp StoreFree download

Free to start · Syncs with Apple Health · Delete your data anytime