For GLP-1 pens and vials
Track your GLP-1 shots. Get the units right.
For semaglutide and tirzepatide, from a pen or a vial. Claritide shows what to dial or draw, and remembers every shot.


Dial it, or draw it.
On a pen, the dose to dial.
No mixing and no math. For each shot it shows the number to dial, and it keeps count of the shots left in your pens.
On a pen
On a vial, the units to draw.
Every unit is one hundredth of a mL. At 10 mg per mL, 10 units hold 1 mg. Claritide works out the mark from your vial’s strength and shows it on the syringe.
Try the free calculatorFrom a vial
Week 4, and every week after.
Dose steps on your schedule
Your prescriber sets the steps. Add them once, and each new dose starts on the week it should. Claritide never suggests a change.
Weekly weigh-ins
Log your weight when you step on the scale, or let Apple Health bring it in. Your start, current and goal weight (SW, CW, GW) sit side by side, and progress photos stay on your iPhone.
Side effects, next to the shot day
Log nausea or anything else you notice, and how strong it was. Each entry keeps its day and time, right next to your shots.
Sites and reminders
Tap where each shot went on a body map, and it tells you when a spot is still resting. A reminder comes a few minutes before your shot, with one follow-up, and stays quiet at night.
A missed shot
Log it late. After 12 hours a shot shows as missed, and you can still log it then. If you are away 7 days or more, Claritide asks whether to resume or restart. It never names a restart dose. That call is for you and your prescriber.

Something to show your doctor.
Claritide turns your log into a one-page report: your meds and doses, the shots you took, sites, side effects, weight and labs. Print it or save it as a PDF.

It syncs encrypted.
Your plan, dose history and vials are encrypted on your iPhone before they sync, so they restore when you sign in on a new phone.
Photos, Apple Health data, lab records and side effects stay on this iPhone. Nothing is sold, and nothing is used to train anything. Read the privacy policy
Questions, answered.
Which GLP-1 meds can I track?
Brand pens like Ozempic®, Wegovy®, Mounjaro® and Zepbound®, and semaglutide or tirzepatide from a vial. It also knows investigational ones like retatrutide.
How do I turn mg into units?
Divide your dose in mg by your vial’s strength in mg per mL, then multiply by 100. At 10 mg per mL, each unit holds 0.1 mg. The free calculator does it for you.
Do pens use units?
Brand GLP-1 pens are labelled in mg, so there is nothing to convert. Units only come in when you draw from a vial with a syringe.
What changes when I switch from a pen to a vial?
A pen gives its dose in mg, so there is nothing to convert. From a vial you draw the dose with a syringe, in units, and the units depend on the vial’s strength. Your prescriber sets the mg. Claritide works out the units from the strength on your label and shows the mark on the syringe.
Why did my units change with a new vial?
Because the strength changed. The same mg takes fewer units from a stronger vial and more from a weaker one. At 10 mg per mL, 1 mg is 10 units. At 5 mg per mL, it is 20 units. Check the strength on every new vial before the first draw, and if the label lists a second ingredient, use the number for the GLP-1 itself.
Can it tell me my exact medication level?
No. It can draw an estimated level from your shots and the published half-life. It is an estimate, not a blood test.
What if I miss a shot or take it late?
Your medicine’s label says how late a missed shot can still be taken, and the rule is not the same for every GLP-1. Check the label, or ask your pharmacist or prescriber. Then log the shot at the time you actually took it, so your record stays true. The missed-dose guide has more.
What does it cost?
$59.99 a year or $14.99 a month, and eligible subscribers get the first 7 days free. The calculator on this site is free.