Track Your Zepbound Journey with Pep

Why Use a Zepbound App to Track Tirzepatide?

A Zepbound app takes the guesswork out of a once-weekly injection. Because tirzepatide steps up gradually — you start at 2.5 mg and can increase in 2.5 mg increments after at least 4 weeks on each dose, up to the 15 mg maximum — it is easy to lose track of which week you are on, what dose you took, and which injection site you used last. Logging every shot keeps your doses, sites, weight, and side effects in one place, so you and your care team can see exactly how things are going.

Consistency is where results come from. According to Lilly’s official dosing guidance, a missed Zepbound dose can be taken up to 4 days (96 hours) late — after that, you skip it and take your next dose on the regularly scheduled day. A Zepbound app with reminders makes missed doses far less likely in the first place, and if one does slip by, your log shows exactly how late you are. You can track every dose free with Pep.

The best Zepbound app also goes beyond dose logging. Tracking protein helps you protect muscle while the scale drops — our guide to GLP-1 muscle loss explains why that matters — and if you are weighing your medication options, our Zepbound vs Wegovy comparison breaks down results, dosing, and cost. To compare tracking tools instead, see our roundup of the best GLP-1 tracker apps.

Zepbound App Free Download: How to Get Started

Looking for a Zepbound app free download? Pep costs $0 on both the App Store and Google Play, and the core tracking features stay free. Getting set up takes about two minutes:

1. Download Pep free on iOS or Android using the buttons above.
2. Add your Zepbound prescription with your current dose — Pep also handles Ozempic, Wegovy, Mounjaro, and daily GLP-1 pills if you ever switch.
3. Pick your shot day and reminder time, then log your starting weight to begin your trend line.

From there, your Zepbound tracker handles the reminders while you focus on the routine. And as your prescriber steps your dose up from 2.5 mg toward maintenance, our free GLP-1 dose schedule calculator maps out the earliest date you could reach each step.

Zepbound App FAQ

Is there a free Zepbound app?

Yes. Pep is a completely free Zepbound app for iOS and Android. You can log injections, set weekly reminders, follow your dose escalation, and track weight, protein, and side effects at no cost.

What happens if I miss a Zepbound dose?

If it has been 4 days (96 hours) or less, take the missed dose as soon as you can, then resume your weekly schedule. If more than 4 days have passed, skip it and take your next dose on your regular day. Our free missed dose calculator checks the label guidance for exactly how late you are, and our missed GLP-1 dose guide walks through each scenario.

How much does Zepbound cost in 2026?

Prices change often, but as of mid-2026 Lilly’s self-pay program through LillyDirect lists Zepbound at $299 per month for 2.5 mg, $399 for 5 mg, and $449 for 7.5 mg and higher when you refill within 45 days. Insurance copays vary widely, so check your plan for your exact price. Our free GLP-1 cost calculator can estimate your monthly and yearly cost across payment options — and whatever the medication costs, the Pep Zepbound app is always a free download.

Can a Zepbound app show whether my weight loss is on track?

Yes — that is one of the biggest benefits of tracking. Logging weekly weights builds a trend line you can compare against average results from tirzepatide’s clinical trials. Our free GLP-1 weight loss calculator projects a typical week-by-week timeline for your starting weight, and Pep charts your actual progress right alongside your goals. If your trend stalls for a few weeks, our GLP-1 plateau guide covers what usually helps.

This page is for educational purposes only and is not medical advice — always follow your healthcare provider’s instructions.