Home / Guides / Injection tracker app for any schedule, site and container

Who needs an injection tracker

Anyone who injects on a schedule and has ever stood in the kitchen wondering whether they already did it today. That includes people on GLP-1 medicines such as Mounjaro, Wegovy or Saxenda, people on testosterone replacement, and people using other prescribed injectables or peptides. The schedules vary, but the questions are the same: when is the next one, which site is next, and how much is left?

Five things a dose tracker app has to get right

1. Schedules beyond "weekly"

Real injection schedules are messy. Some are daily, some are every few days, some fall on set weekdays, and some are split into intervals like every 84 hours, where the time of day flips between morning and evening. Some run on and off in cycles. A calendar reminder cannot express most of these, and a pill reminder assumes a fixed time every day. Our guide to non-weekly injection schedules goes through the common patterns.

2. The right sites for the route

Subcutaneous (sub-Q) injections go into the fatty layer under the skin, usually the tummy, thigh or back of the upper arm. That is where the NHS says GLP-1 pens like Mounjaro go, changing the spot each time. Intramuscular (IM) injections go into muscle, such as the deltoid, the ventrogluteal area on the side of the hip, the glute or the outer thigh. Your clinic will tell you which sites and needle suit you. A tracker should show the sites that match your route and keep them apart, because an IM deltoid and a sub-Q back of arm are not the same place. See injection site rotation for why moving spots helps.

3. Pens, vials and ampoules

A pre-filled pen, a multi-dose vial and a single ampoule all run down differently. Some pens are set to a fixed dose, some have a numbered dial, and some are measured in counted clicks. Vials may come ready mixed or need mixing first. If your tracker only knows "doses", it cannot tell you how much liquid your planned dose is or when the vial will be empty.

4. More than one medication

Plenty of people inject two things, such as a GLP-1 and testosterone. Each needs its own schedule, reminders, sites and supply. Squashing them into one routine is how doses get mixed up. More on this in tracking two injectables at once.

5. A record you can hand over

Clinicians ask when your last dose was, what you are on now and how you have been. A dated history, not a memory, answers that properly.

A quick comparison

How PepLevel handles it

Any schedule. Pick every day, every N days, set weekdays, weekly, repeating intervals, every N hours or as needed, with on/off cycles and several reminder times a day. Each reminder has Log dose, Snooze 1 hour, Skip and Reschedule buttons on the notification.

Sub-Q and IM site grids. Choose the route and the grid shows the matching zones. Each dose saves its site, recent ones are dimmed, a next site is suggested, and every site keeps its own history.

Pens, vials and ampoules. Save the container with its amount, liquid volume (or water added, if it needs mixing) and expiry. Your planned dose is shown next to the amount in mL, or cc in the US, on Today, Meds and Log Dose. For a click pen, the app works the planned dose out as dial clicks and shows them beside the amount. It only converts the dose already in your plan and never suggests or changes one. A forecast chart shows when supply runs out, with a reorder reminder beforehand.

Several medications. The compound library covers GLP-1s, testosterone, peptides and more, or add a custom one. Each medication keeps its own schedule, sites, supply and illustrative level curve, and the week view on Today shows them side by side. Weight, side effects and a one-page appointment PDF sit in the same app.

PepLevel is not an insulin dose calculator and does not track blood glucose.

Free or Pro. The free injection tracker handles one medication. Pro is £5.99 a month, £24.99 a year with a 7-day free trial, or £69.99 lifetime.

Common questions

Is there a free injection tracker app?

PepLevel's free tier tracks one medication, including reminders, site rotation and dose history. Tracking more than one needs Pro, from £5.99 a month, £24.99 a year with a 7-day free trial, or £69.99 lifetime.

Can an injection schedule app handle every 3.5 days?

PepLevel can. Its every N hours schedule handles an 84-hour gap, so reminders alternate between morning and evening correctly, which day-based reminders cannot do.

Is PepLevel a shot tracker app for iPhone?

Yes. PepLevel is an iPhone app for tracking injections, jabs or shots of GLP-1s, testosterone, peptides and other prescribed injectables. It is coming soon to the App Store.

One tracker for every injection

Any schedule, sub-Q and IM sites, pens, vials and ampoules. Coming soon to the App Store. Coming soon to the App Store.

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