Best GLP-1 Tracker Apps in 2026: An Honest Comparison
If you search for the best GLP-1 tracker app, you'll find a lot of "number one" claims and very few straight answers. This page compares five apps people actually look at: iQStax, PepTracker, Shotlee, PeptIQ and PeptideCalc.io. We make iQStax, so we'll say that up front. "Best" depends on what you need, and a weekly shot log is not the same as a reconstitution calculator. Below is what each app's own public pages said on November 10, 2026.
Quick note: this article is about recordkeeping tools only. It is not medical advice, and it is not a ranking of medical quality. Your prescriber and the instructions that come with your medication decide your dose, schedule and injection sites. If you have questions about any of those, talk to your clinician or pharmacist.
What to look for, and how we compared
Most people need a dose log (date, medication name, the amount as written on your label, and notes), reminders, injection site history, a calendar that shows taken and missed doses, supply tracking, the platforms they actually use, and a privacy policy they're willing to accept. A calculator or an estimated medication-level graph is not a substitute for your prescriber.
Every feature below comes from that product's own public website, checked November 10, 2026: iQStax, PepTracker, Shotlee, PeptIQ features and pricing, and PeptideCalc.io. We did not invent ratings, download counts or prices. If a company's own site did not list a dollar price, we say so. We also skipped other companies' roundup blogs.
iQStax: what it is, and what it is not
iQStax is a private log for GLP-1s, medications, peptides, TRT and supplements, on iPhone, Apple Watch and Android. It records what you enter. It does not diagnose, prescribe or tell you what dose to take.
It can log a shot in a few taps, record the site on a front and back body map, show missed doses on a calendar, send reminders, track pens and vials in mySTAX with low-stock alerts, log from Apple Watch, show weight progress as % lost and % to goal (lb by default, with a kg option), and export your history.
It does not calculate doses, reconstitution volumes or syringe units. It does not estimate medication levels, scan vial labels with AI, or host a user community.
iQStax comes with a 14-day free trial, then it's $4.99 a month or $29.99 a year. Download iQStax at myiqstax.com and start your free trial.
PepTracker
PepTracker's site presents the app as a protocol manager with a built-in dose calculator, reminders, a calendar and progress tracking, including weight trends. The free plan includes up to 2 protocols, 5 starter templates, basic scheduling, dose calculation and basic reminders. There is no free trial, but you can try the free plan first. Premium adds unlimited protocols, an advanced builder, custom templates, export, analytics, cloud backup and priority support.
The site did not list a dollar price for Premium on the pages we checked on November 10, 2026. The FAQ says you can manage a plan in the App Store or Google Play, which suggests both iOS and Android. We did not re-open the store listings for this draft. iQStax does not include a dose calculator, on purpose. We are a log, not a calculator.
Shotlee
Shotlee's site describes an injection tracker for GLP-1s, peptides and hormone protocols, on iOS and Android. Listed features include dose logging with the injection site and notes, next-shot reminders, a side effect journal, weight and measurement tracking, charts, multi-medication support, pen expiration tracking and a private community.
The refund policy describes a free tier and a Shotlee PRO subscription, with a 3-day free trial of PRO on the App Store and Google Play. The official pages we checked did not list a dollar price, so the live price is the one shown in the store at sign-up. Shotlee is broader than iQStax, with community and side effect journaling. iQStax stays a private log, with a body map, a missed-dose calendar and inventory alerts.
PeptIQ
PeptIQ's site describes a peptide and injection tracker with a site map, inventory tools, protocol schedules and a large educational library. Premium adds AI tools such as a vial scanner and protocol builder, plus low-stock and expiration alerts, per-protocol reminders, analytics, a half-life tracker, cloud backup and CSV or PDF export.
PeptIQ is on the App Store and Google Play. The download page, checked November 10, 2026, says the full experience is in the iOS and Android apps, and that a subscription is required for that experience. Some educational calculator pages on the website may be available without a subscription. Billing is weekly, monthly or annual, and the official pricing page did not list a consumer dollar amount. PeptIQ is a larger toolkit than iQStax, including calculators, AI features and a peptide library.
PeptideCalc.io
PeptideCalc.io is a free browser calculator and a paid iPhone and iPad app. The web calculator handles a single-vial concentration and syringe calculation, for free. The iOS app is a $4.99 one-time purchase in the US App Store, with no subscription and no ads. The site listed that price as checked October 3, 2026. There is no Android app.
The iOS app adds saved protocols, schedules and reminders, dose history, inventory alerts, injection site records, custom metrics, optional Apple Health import, widgets, local backups and CSV or PDF export. Core records stay on the device by default, with no account required and optional iCloud sync. Modeled medication levels are included, and the company's own site describes them as mathematical estimates, not blood tests. This is the clear pick if you want to pay once on iPhone and keep calculator tools next to your log, not if you need Android or Apple Watch logging.
Which one might fit
Choose iQStax if you want a private log on iPhone, Watch and Android, with a body map and inventory alerts, and use the 14-day free trial. Look at PepTracker or PeptideCalc.io for syringe math and protocol templates, Shotlee for a community and side effect journal, PeptIQ for AI tools and a peptide library, and PeptideCalc.io if you want a one-time iPhone purchase with data kept on the device. Whatever you pick, log the dose as it appears on your label, and ask your prescriber about anything you are unsure of.
FAQ
What is the best GLP-1 tracker app?
There isn't one answer. It depends on whether you need a simple private log, a calculator, Android or Apple Watch, a one-time purchase, or extras like a community or AI tools.
Does iQStax calculate my GLP-1 dose?
No. iQStax is a private log, not a medical tool. It records what you enter. It does not calculate, suggest or change doses. Always follow your prescriber's instructions.
Is iQStax free?
iQStax has a 14-day free trial. After that it's $4.99 a month or $29.99 a year.
Why don't you list every competitor's price?
We only listed dollar prices when the company's own public site showed them on November 10, 2026. PepTracker, Shotlee and PeptIQ describe paid plans, but those pages did not show a dollar amount. Check the store listing for the live price.
Can I track peptides, TRT or supplements in iQStax too?
Yes. iQStax tracks GLP-1s, other medications, peptides, TRT and supplements in one place, each with its own logging and reminders.
Where can I learn how to keep a GLP-1 injection log?
See our guide, How to Track GLP-1 Injections.
Try iQStax and decide for yourself
If a private log with reminders, a body map, a missed-dose calendar and inventory alerts is what you want, try iQStax free for 14 days on iPhone or Android at myiqstax.com.
iQStax is a recordkeeping tool. It does not provide medical advice, diagnosis or treatment. Talk to your clinician about your medication, dose and injection sites. Features and prices for other apps can change, so recheck each site and the store listing before you buy.