Best Peptide Tracker App in 2026: A Multi-Protocol Comparison

Tracking a peptide protocol in Notes works until it doesn't. You lose the thread of which site you last injected. You can't tell whether BPC-157 is actually moving your joint pain numbers. Your prescriber asks how the cycle went and you have nothing useful to show them.

A purpose-built tracker needs to handle at least four things well — and most of the apps in this category only handle one.

What to look for in a peptide tracker

Setup that doesn't take 20 minutes. Entering compound name, dose, frequency, reconstitution math, and cycling schedule by hand is tedious. The best apps cut that friction significantly.

Injection site rotation. Scar tissue and lipoatrophy are real consequences of poor rotation. You need a visual record — not a mental one.

Cycle management. Peptide protocols run in on/off windows. An app that doesn't understand cycling will flag missed doses during an intentional off week. That's noise you don't need.

Outcomes tracking tied to objective data. Subjective feel matters, but pairing it with HRV, sleep stages, and weight from Apple Health gives you something defensible when you're evaluating whether a protocol is actually working.

Running semaglutide or TRT alongside a peptide stack raises the bar further. Most apps handle one category. Few handle all three.

The best peptide tracker apps in 2026

Regimen — best for multi-protocol tracking across peptides, GLP-1s, and hormones

Regimen is the only iOS app built to handle a peptide stack, a GLP-1 therapy, and a hormone protocol at the same time, in one place. That's the core differentiator — and it matters if you're running more than one category simultaneously.

Setup. Photograph your vial label or care plan. Claude (Anthropic's AI) reads the compound, dose, frequency, and cycling schedule, then builds the protocol. You land on a verify screen before anything saves. For most vials, the whole thing takes under a minute.

Injection site rotation. An interactive body diagram shows your recent injection sites with timestamps. Tap to log, and the app maintains your full rotation history per protocol. No guessing.

Cycle-aware scheduling. On/off-week management is built in. Reminders pause automatically during an off week and resume when the cycle restarts. After any break or pause, the protocol picks back up on its own. You can also log week-by-week observations as the cycle progresses.

Outcomes. Each day you rate mood, energy, sleep, focus, libido, and joint pain on a 1–5 scale. Apple Health fills in the objective side — weight, HRV, resting heart rate, sleep stages (REM, deep, light, awake), glucose, and BMI — via read-only sync. Every protocol gets a 30-day sparkline so you can see whether anything is actually moving. The compound browser shows which compounds are configured to track which outcomes.

PDF report. One tap from the Analytics screen generates a physician-formatted PDF: full dose history, cycling windows, and an Outcomes Since Starting section that pairs your subjective scores with Apple Health data. Nothing to edit before you hand it to a prescriber.

Dose planner. Enter your vial concentration and BAC water volume, and the app calculates the exact syringe draw. Available on both iOS and the web at the free dose planner.

Pricing. 7-day free trial, no credit card required. $9.99/month or $79.99/year ($6.67/month, 33% savings versus monthly).

Requires iOS 17 or later.

PeptIQ — best for peptide-only tracking with Apple Health overlays

PeptIQ covers a curated library of peptide profiles with injection site rotation and Apple Health data overlays. The compound library is solid for peptide-only use, and the Apple Health integration surfaces relevant biometrics per protocol.

The gaps: no GLP-1 or hormone support, no AI label scanning, no documented physician PDF export, and Pro pricing isn't publicly listed. If your protocol is peptide-only and clinical documentation isn't a priority, PeptIQ is worth a look. If you're also running semaglutide or TRT, it won't cover the full picture.

See the full Regimen vs PeptIQ comparison.

Shotsy — best for GLP-1 injection tracking with pharmacokinetic visualization

Shotsy is the most established name in GLP-1 tracking, with strong App Store ratings and over 100,000 Android downloads. It handles dose logging and site reminders well for semaglutide (Ozempic, Wegovy, Rybelsus) and tirzepatide (Mounjaro, Zepbound).

What Shotsy does that nothing else in the category does: pharmacokinetic medication-level charts. Their Premium tier visualizes the in-body curve of your GLP-1 over time based on the published half-life. Both semaglutide and tirzepatide have half-lives near a week, so the curve shape is genuinely useful for understanding peak/trough timing between weekly doses. Shotsy also ships integrated nutrition tracking — calories, protein, and water alongside dose logging — which is meaningful if you want everything in one place.

The gaps: GLP-1 only, no support for peptides like BPC-157 or hormone protocols like TRT, no AI label OCR, and a narrower Apple Health integration (weight, calories, protein, water — no sleep stages, HRV, or glucose).

Pricing: free tier covers the core flow; Premium is $7.99/month or $39.99/year (raised from $29.99/year in 2025 after their Series A). For a single GLP-1 protocol with no other compounds in your stack, Shotsy is a reasonable choice and the cheaper option. Add peptides or hormones and you'll need a second app.

See the full Regimen vs Shotsy comparison.

MeAgain — best for GLP-1 tracking with strong community features

MeAgain has a widely-cited large user base and high App Store ratings, built around GLP-1 therapy management with strong community features. Used widely by Ozempic and Wegovy users sharing their journeys.

The gaps: GLP-1 only, no peptide or hormone support, no documented AI label OCR, no documented physician PDF export. Annual pricing matches Regimen's at the time of writing while covering a narrower protocol range. Worth considering if community matters to you and your protocol stays in the GLP-1 lane.

Glapp and GLP3 Planner — best for basic GLP-1 dose calculation

Both are GLP-1-only or calculator-focused tools. Neither offers biometric sync or a physician-ready PDF. They serve a narrower use case — primarily dose scheduling for GLP-1 medications — without the outcomes tracking or clinical documentation depth.

If you want a calculator without committing to a full tracking app, the Regimen Dose Planner covers the reconstitution math for free on the web.

Feature comparison

Which app is right for you

Running a peptide stack only. PeptIQ is a functional option if your needs are compound-specific and clinical documentation isn't on your list. Regimen is the stronger choice if you want outcomes tracking, cycle management, a reactions journal, vial supply tracking, and a PDF your prescriber can actually use.

On semaglutide or tirzepatide only. Shotsy is purpose-built for this — the pharmacokinetic medication-level visualization is a real product differentiator, and the nutrition tracking is useful. MeAgain works well if community matters to you. Regimen is worth the upgrade if you want broader Apple Health biometrics (sleep stages, HRV, glucose) paired with your dose history and a formatted report for your prescriber that includes outcomes alongside doses.

Running peptides alongside a GLP-1 or hormone protocol. No other app in this category handles all three. Regimen is the only option that produces a single PDF covering your full protocol history across every category.

Want the fastest setup. Photograph the vial label. Regimen does the rest.

FAQs

What is the best peptide tracker app in 2026? Regimen is the strongest option for anyone running peptides alongside GLP-1 therapies or hormone protocols. It's the only app with AI vial-label scanning, multi-protocol support across all three categories, and a physician-formatted PDF report. For peptide-only tracking, PeptIQ is a reasonable alternative. For GLP-1-only tracking, Shotsy ships pharmacokinetic medication-level charts that no other tracker in the category has.

Can a peptide tracker app handle injection site rotation? Yes. Regimen, PeptIQ, and Shotsy all include injection site tracking. Regimen uses an interactive anatomical body diagram that shows recent sites with timestamps and maintains full rotation history per protocol. PeptIQ uses a body diagram with rotation history. Shotsy uses a list-based approach that suggests the next site.

Do peptide tracker apps work for GLP-1 medications like semaglutide? Most peptide-focused apps don't support GLP-1s, and most GLP-1 apps don't support peptides. Regimen is the exception — it handles semaglutide, tirzepatide, and other GLP-1 medications in the same protocol log as BPC-157, TB-500, CJC-1295/ipamorelin, and hormone protocols like testosterone replacement.

How does AI label scanning work in Regimen? Photograph your vial label or care plan in the app. Claude (Anthropic's AI) reads the compound name, dose, frequency, and cycling schedule, then builds the protocol automatically. You review and confirm on a verify screen before anything saves. The same scanner handles compounding-pharmacy lot codes (CJCIPA → CJC-1295 + Ipamorelin, BPCTB → BPC-157 + TB-500, SEMA → Semaglutide) when only a vial is available.

Can I share my peptide tracking data with my doctor? Regimen generates a one-tap PDF formatted for a physician. It covers your full dose history, cycling windows, and an Outcomes Since Starting section that pairs your daily subjective scores with Apple Health biometrics. Nothing to edit before you hand it over. Shotsy also exports a PDF, but only the dose history.

Is there a free trial for Regimen? Yes. 7 days, all features unlocked, no credit card required. After the trial, plans are $9.99/month or $79.99/year.

Does Regimen work on Android? No. Regimen is iOS only and requires iOS 17 or later. PeptIQ is iOS-only as of this writing. Shotsy and MeAgain support both iOS and Android.

What Apple Health data does Regimen sync? Regimen reads weight, body fat percentage, BMI, HRV, resting heart rate, sleep total, REM sleep, deep sleep, light sleep, awake time, glucose, and step activity from Apple Health. The sync is read-only — Regimen never writes to your Apple Health store. That data surfaces on your Today view and per-protocol sparklines, and is included in the PDF report.

Final take

Most peptide tracker apps were built for one protocol category. If your stack stays in one lane, that's fine — Shotsy is purpose-built for GLP-1s with its pharmacokinetic visualization, PeptIQ is purpose-built for peptide-only protocols. But if you're running BPC-157, semaglutide, and testosterone in the same month, you need one place that logs all of it, tracks outcomes against Apple Health data, and produces a single document your prescriber can actually read.

That's what Regimen does. The vial label scan gets you set up in under a minute. The body diagram keeps your rotation honest. The PDF closes the loop with your doctor.

Learn more at onregimen.com.