Best App to Track GLP-1 Doses, Sites, and Side Effects (2026)

If you are on a GLP-1 receptor agonist — Wegovy, Ozempic, Zepbound, Mounjaro, or compounded semaglutide / tirzepatide — or if you are running an injectable peptide protocol that involves more than one compound, the question of which app to use to track it shows up quickly. Adherence is the single biggest predictor of outcomes for GLP-1 medications, and adherence is much easier when the dose schedule, injection site, and side-effect timeline are all in one place. This page lays out the criteria to evaluate any tracker against, and applies them to the major options as of 2026.

What a GLP-1 Tracker Actually Needs to Do

A useful tracker for GLP-1 or peptide protocols supports five jobs:

Dose logging. Date, time, dose, site, with a persistent history that you can review for patterns.
Site rotation. Visual or rule-based reminders that prompt you to use a different site each week, reducing the risk of lipohypertrophy and inconsistent absorption.
Titration tracking. Dose-escalation milestones (e.g., starting dose → 0.5 mg → 1 mg → 2.4 mg for semaglutide) with date-aligned reminders.
Side-effect logging. Symptom severity over time, ideally on a chart that aligns with dose-escalation events so patterns are visible.
Reconstitution math (peptides). If you are dealing with lyophilized peptides supplied as powder, reconstitution math is required. This is where general medication trackers fall down.

Comparison Criteria

Beyond the core jobs, a small number of criteria meaningfully differentiate apps:

Privacy posture. On-device only? Cloud account required? Third-party sharing? GLP-1 dose history is sensitive health data and should be treated like it.
Health platform integration. Apple HealthKit / Google Health Connect support for weight, blood pressure, and activity, so they can be reviewed alongside dose history.
Multi-compound support. Does the app handle non-GLP-1 peptides — growth hormone peptides, healing peptides, peptide stacks?
Platform availability. iOS only, Android only, or both?
Pricing model. Freemium with paywalls, monthly subscription, lifetime, or free.
Reporting. Can you generate a PDF or summary for a clinician visit?

How the Major Options Stack Up

Shotsy

The most-downloaded GLP-1-specific tracker, focused tightly on the weekly GLP-1 injection workflow. Strong dose logging, site rotation, and titration support; iOS only at time of writing. Cloud-account model.

MyFitnessPal / general health apps

General-purpose health apps include freeform medication-logging features, but they do not model the specific GLP-1 workflow (titration milestones, weekly cadence, vial reconstitution, site rotation). Useful as a complement for nutrition tracking; not a substitute for a purpose-built tracker.

Apple Notes / spreadsheets / paper journal

What most people start with. Works for one or two titration cycles; loses signal as the protocol gets longer or more complex. Site rotation is hard to enforce visually, and side-effect timelines are hard to chart.

PeptideTracker

Our companion app. Built specifically for the broader injectable protocol use case — GLP-1s, growth hormone peptides, healing peptides, peptide stacks, and any compound that requires reconstitution math. Distinguishing characteristics:

On-device, encrypted. Data lives on the device with SQLCipher encryption. No cloud account required, no third-party data sharing.
Cross-platform. Built in Flutter, available on iOS and Android.
Reconstitution-aware. Built-in reconstitution math for lyophilized peptides, with vial-inventory tracking.
Multi-compound protocols. Handles GLP-1 monotherapy as well as multi-peptide stacks (e.g., CJC-1295 + ipamorelin, BPC-157 + TB-500).
Site rotation visualization. Visual map of recent injection sites with rotation prompts.

Bottom Line

If you are only on a GLP-1 medication and prefer the most polished single-purpose tracker, Shotsy is a strong choice. If you value on-device privacy, are running multiple protocols, are dealing with reconstituted peptides, or want a single app that covers both GLP-1s and the broader peptide landscape, PeptideTracker is built for that exact use case. Both apps complement — not replace — the educational reading you do here on PeptideWise about the mechanism, evidence, and safety of any compound you are considering.

Frequently Asked Questions

What should a GLP-1 or peptide tracking app actually do?

At minimum: log each injection (date, time, dose, site), rotate sites with a visual reminder, track dose-titration milestones from a starting dose to a maintenance dose, and capture side effects on a date-aligned timeline. Bonus features that meaningfully improve adherence: vial-reconstitution tracking, weekly summary reporting, and HealthKit/Health Connect integration so weight, blood pressure, and other metrics can be reviewed alongside dose history.

Why does on-device storage matter for GLP-1 tracking?

GLP-1 medications and any injectable protocol generate sensitive health data — dose, timing, side effects, body-composition metrics. Apps that sync this data to a cloud you don't control create a privacy footprint that can be requested in legal proceedings, breached, or used for advertising. On-device storage with optional encrypted backup keeps the data under your control and reduces the audit surface dramatically.

Are there any free apps that do GLP-1 tracking well?

Some general health apps include freeform medication-logging features, but they rarely model the specific GLP-1 use case (titration milestones, vial reconstitution, site rotation, weekly dosing). Purpose-built GLP-1 trackers tend to use freemium models with key features behind a subscription. The realistic question is not "free vs paid" but "does this match the protocol I'm actually on."

How does PeptideTracker compare to Shotsy and other GLP-1 apps?

Shotsy is the most-downloaded GLP-1-specific tracker and focuses tightly on weekly GLP-1 injection logging. PeptideTracker covers the broader set of injectable protocols (GLP-1s, growth hormone peptides, healing peptides, peptide stacks) with the same site-rotation, dose-titration, and side-effect tracking primitives, plus reconstitution math for compounds supplied as lyophilized powder. PeptideTracker is also explicitly privacy-first: data lives on the device with SQLCipher encryption, with no cloud account required.

Can I use my Apple Notes or a spreadsheet to track GLP-1?

You can, and many people do start there. The reasons people eventually move to a purpose-built app are: (1) the dose-titration schedule is easy to lose track of in a spreadsheet, (2) site rotation requires a visual reminder you can't easily build in a notes app, (3) symptom-side-effect timelines benefit from date-aligned charts, and (4) reconstitution math is error-prone without a calculator. Spreadsheets are fine for one or two cycles; structured tracking pays off over months.

Will the app share my data with insurance companies or my employer?

It depends entirely on the app. Apps that route data through a cloud account create the possibility of subpoena, breach, or commercial sharing. Apps that store data only on your device — like PeptideTracker — physically cannot share what they don't have. Read each app's privacy policy and check whether the data is on-device, in their cloud, or shared with third parties.

Best App to Track GLP-1 Doses, Sites, and Side EffectsA 2026 Criteria-Based Comparison