Hands-on comparison of 8 peptide tracker apps. Features, pricing, and which ones actually track bloodwork, supplements, and protocols — not just doses.
Best Peptide Tracker Apps in 2026 — Full Comparison There are now more than a dozen peptide tracking apps on the market. Most launched in the last 18 months. Some do one thing well; most do several things poorly. If you are running a real protocol — peptides, GLP-1, hormones, or some combination — picking the wrong app means you stop logging by week three and lose the entire reason you started tracking. This guide compares the eight peptide trackers most actively maintained in 2026. We look at what each one actually does, what it does not do, and which type of user fits each tool.
Before comparing apps, decide what you actually need to track. Most peptide users only realize after a few months which features matter and which were marketing.
Dose logging. The non-negotiable. Compound name, amount, unit, time, and injection site. Apps that do not capture site rotation are basically a notes app with a calendar.
Protocol and cycle management. A protocol is not a single dose — it is a structure. Cycle length, frequency, start and end dates, and whether multiple compounds run together. Apps that treat each dose as an isolated event miss the entire point.
Bloodwork and biomarkers. This is where most trackers stop short. A dose log without lab data is a stopwatch — it tells you what happened, not whether it worked. The best trackers let you upload a lab report, trend the markers over time, and correlate them to the protocol that was running when each draw happened.
Vial and reconstitution tracking. Knowing how much volume is left in a vial, when it was reconstituted, and when it expires prevents the most common dosing errors.
Multi-compound and supplement support. Real protocols are stacks. BPC-157 plus TB-500. Tesamorelin plus enclomiphene. GLP-1 plus a baseline supplement routine. If your tracker only handles one compound at a time, you will be juggling apps within a month.
Data export. Your tracking data is yours. If the app cannot export it, you do not actually own it.
AI or automated analysis. Optional, but increasingly common. The best implementations read your lab report and surface what changed, what is in or out of range, and which markers correlate with the protocol you were running.
This list covers the eight peptide trackers most users encounter when shopping in 2026. The lineup mixes web-and-mobile platforms with App Store-only tools and free utilities.
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We grouped these into four practical tiers. Comprehensive trackers handle protocols end-to-end. Loggers focus on dose entry. Specialty tools do one thing in depth. Utility apps are calculators or references.
MyProtocolStack is the broadest of the trackers we evaluated and the only one that pulls bloodwork into the same surface as dose logging. It runs on the web (no App Store gatekeeping) and as an iOS and Android app for in-the-moment dose entry.
What it tracks
What is unique
Pricing
Best for
Anyone running a multi-compound protocol who wants their bloodwork and their dose log in the same place. If your tracking system is currently a notes app plus a folder of PDF lab reports, this is the consolidation step.
PepTracker is the most popular dedicated peptide logger on the App Store. The interface is clean. Calendar entry is fast. If your needs end at "did I take my dose today and where did I inject," this app does that well.
Strengths
Limitations
Best for
A user running a single peptide protocol who already has bloodwork organized elsewhere and just needs reliable dose logging.
PeptideKit is one of the lower-priced dedicated trackers. The calendar UI is simple, and basic protocol management is functional.
Strengths
Limitations
Best for
A first peptide protocol where you want to spend less than $5 per month and only need to log doses.
MyPeps takes a different angle. It models the dose decay curve for each peptide and shows you where you are in the half-life cycle at any moment. Vial tracking is built in.
Strengths
Limitations
Best for
A user who cares about timing relative to peptide half-lives — for example, planning a tesamorelin shot to align with sleep onset, or stacking BPC-157 doses to overlap.
A handful of smaller apps cover narrower slices of the workflow.
Peptify specializes in vial tracking and reconstitution math. Useful as a companion to a separate dose logger but not a complete tracker on its own.
PepCalc is a reconstitution calculator with a free tier. Excellent for the math step, no opinion on dose logging or protocol structure.
Pep AI styles its dashboard around AI-driven recommendations. The actual depth of analysis varies. Worth evaluating against MyProtocolStack's StackAI if AI is a primary requirement, but the comparison favors the more comprehensive tracker for users who also need bloodwork.
PepPedia is a peptide wiki with a light tracker bolted on. Useful as a reference, less useful as a primary logging tool.
SHOTLOG is occasionally mentioned in user forums. Coverage is limited and the app is not actively maintained as of this writing.
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This matrix is the most honest snapshot we can give as of April 2026. Apps update — features change. If a specific feature is mission-critical for you, verify it directly with the app before committing to a paid plan.
We weighted comprehensiveness, data ownership, and multi-compound support as the three dimensions that matter most for a real protocol. A tracker that only logs doses without bloodwork context is missing the half of the data that tells you whether the protocol is doing anything.
We tested each app against the same scenario: a 12-week BPC-157 plus TB-500 healing stack with a baseline lipid panel, hs-CRP, and a follow-up draw at week six. The trackers that could absorb the lab values, link them to the protocol that was running, and surface the change between draws scored the highest. Most apps could not.
Pick by the tracking surface that matters most to you.
A common mistake is buying the cheapest dedicated tracker and outgrowing it within two months. If you are running more than one compound, planning to add bloodwork to your tracking, or already manage supplements alongside your peptides, the comprehensive option pays for itself in time saved versus juggling four tools.
Do I actually need a peptide tracker?
If you are running a single compound for less than 30 days, a notes app is fine. If you are running anything longer or anything with multiple compounds, a real tracker prevents the dose-from-memory problem that derails most protocols by week four.
Is my data private?
This depends on the app. Look for clear language on data export, account deletion, and whether your data is sold or used to train models. MyProtocolStack stores everything in your own account and provides full data export — your tracking record is yours. Verify the same with any other tracker before uploading sensitive lab data.
Can I track supplements alongside peptides?
Most dedicated peptide trackers do not. MyProtocolStack does. If your stack includes magnesium, vitamin D, omega-3, or any other supplement that interacts with the protocol, putting them in the same tracker keeps adherence visible.
What about Apple Health integration?
Several trackers expose limited Apple Health hooks. Coverage varies. If Apple Health import is a hard requirement, verify directly with the app before subscribing.
Why is MyProtocolStack listed as the top pick when this is published on its blog?
Honest answer — because we built MyProtocolStack as the tracker we wanted when we were running protocols ourselves and the existing apps fell short on bloodwork. We have tried to be specific about what each competitor does well and where each one fits. If you only need dose logging, the simpler apps are the right call. The "best overall" framing reflects that MyProtocolStack covers the most ground, not that it is the right pick for every user.
The peptide tracker market in 2026 has matured from "nothing exists" to "lots of small apps that solve one slice of the problem." The right tracker for you depends on whether your protocol is dose-only or includes bloodwork, supplements, and multiple compounds.
If you want to consolidate everything in one place — protocol structure, dose logging, vial inventory, bloodwork, vitals, and AI lab analysis — try MyProtocolStack free for 14 days. No card required to start.
[Start your free 14-day trial →](https://myprotocolstack.com)
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*MyProtocolStack is a tracking and education tool. It is not medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting or modifying any protocol.*
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