The best peptide tracker app.
Roundups in this category are almost always written by whoever is selling one of the apps, which is why they arrive with a numbered ranking and a winner that happens to be the publisher. This one is written by PepCue, so read it with that in mind. What we can offer instead of a pretence of neutrality is a set of rules: no ranking numbers, no invented pricing, no ratings we have not verified, and a plain statement of what each app is better at than PepCue.
Last checked September 2026. Competitor features and pricing change, so verify on their own site or App Store listing before you decide.
- The apps are listed in no particular order. There is no score and no rank.
- PepCue is listed with everything else, including what it does not do.
- Where we could not verify an app's features or price, we say so rather than guess.
- Nothing here is a paid placement. There are no affiliate links on this site.
PepCue.
Best at: graded evidence, free vial math, and nothing to sell you
PepCue is a peptide and GLP-1 tracker with an evidence library bolted to the front of it. Every compound carries a letter grade from S to F, computed from six scored axes rather than assigned by opinion: how much controlled human evidence exists, how deep the preclinical work goes, how well the mechanism is actually characterised, how well the safety profile is known, whether a regulator has reviewed it, and whether the outcome that was studied is the one people are chasing. The whole model is published, thresholds included, with a worked example on a real compound. Across 69 profiles there are 306 cited sources, and behind the corpus sits a generated research index of 274 unique PubMed records, each pulled from NCBI and re-resolved against live PubMed by an audit script kept in the repository, so a citation that quietly stops resolving gets caught.
It is free to use. A full protocol can be run without paying, and the 9 calculators run in a browser with no account and no install, covering reconstitution, blends, vial longevity, GLP-1 titration, pen clicks and unit conversion. Tracked data stays on your device rather than on our servers. Nothing is for sale, no vendor is ranked and no affiliate code appears anywhere, which is what makes it possible to publish a compound page whose conclusion is that the compound has no human efficacy evidence at all.
No AI companion, no camera vial scanner, no Apple Health or Google Health Connect sync, and no community or certificate-of-analysis sharing. PeptIQ has all four. PepCue also never gives dosing guidance, which is a deliberate limit rather than a missing feature, and it will not tell you which supplier to use.
The other apps people search for.
Two of these we can describe with some confidence. The rest we cannot, and rather than filling the gap with plausible-sounding feature lists we have left it open. If you know one of these apps well, trust your own experience over anything on this page.
PeptIQ
PepCue vs PeptIQ →Best at
An AI companion, a camera vial scanner, Apple Health and Google Health Connect sync, and a community with certificates of analysis.
The closest full-featured rival: AI companion, vial scanner, community and health-app sync, on a subscription.
PeptIQ is the one competitor here we can describe with any confidence. The features listed below come from PeptIQ's own public description of the product. We have deliberately not printed a price, a rating or a review count, because those change and we have not independently confirmed the current numbers.
Shotsy
PepCue vs Shotsy →Best at
Single-compound GLP-1 weight-loss tracking, kept deliberately simple.
Built for GLP-1 weight-loss tracking. Narrower on purpose, and better for that one job.
What we can state about Shotsy is that it is focused on GLP-1 weight-loss tracking rather than multi-peptide protocols. We have not verified its current pricing, its feature list or its ratings, so none of those appear in the table below.
PepTracker
PepCue vs PepTracker →Best at
Dose logging, if a clean log is all you need. We could not verify its feature set, so treat that as a description of the category rather than a claim about the app.
A peptide dose tracker. We compare on what PepCue adds around the log rather than on unverified features.
We have not verified PepTracker's feature list, pricing, ratings or review counts, so none of those appear below. Every cell in their column reads “Not verified” for that reason. If you know the app, trust your own eyes over this page.
PeptideKit
PepCue vs PeptideKit →Best at
Unknown to us. We could not verify PeptideKit's feature set, so we have not assigned it a strength it may not have.
Another peptide app in the same search results. This page compares on the math layer, which is the part we can prove.
We have not verified PeptideKit's features, pricing, ratings or review counts, so their column is blank throughout. Check their own listing before drawing conclusions from this page.
Dose Track
PepCue vs Dose Track →Best at
General medication and dose tracking across everything you take, if a general tracker is what you need. We have not verified the specific app's features.
General dose tracking versus a peptide-specific tool. The gap is vials, not reminders.
We have not verified this app's features, pricing, ratings or review counts, and the name is generic enough that several products could be meant. Their column is blank throughout on purpose.
OptiPin
PepCue vs OptiPin →Best at
Unknown to us in specifics. We could not verify OptiPin's feature set, so we have not credited it with strengths we cannot confirm.
Injection tracking and adherence, versus a record plus the evidence behind what is in it.
We have not verified OptiPin's features, pricing, ratings or review counts. Every cell in their column reads “Not verified” for that reason. Check their own listing.
Regimen
PepCue vs Regimen →Best at
Not something we can specify. We could not verify Regimen's feature set, so we have not assigned it a strength.
Protocol building versus protocol building plus an honest verdict on whether the protocol has ever been tested.
We have not verified Regimen's features, pricing, ratings or review counts, so their column is blank throughout. Check their own listing before treating anything here as a comparison of features.
A cell is filled only where we could confirm the fact from public information. “Not verified” means we could not confirm it, not that the app lacks it.
How to actually choose.
Start with the shape of your protocol, because it eliminates most of the field immediately. If you are on a single GLP-1 for weight loss and nothing else, a tracker built for exactly that will be faster and simpler than a general protocol app, and Shotsy is focused on that job. If you are running several compounds at once, reconstituting powder from vials at different concentrations, you need something that models concentration rather than treating a dose as a number in a box.
Then test the arithmetic before you test anything else. Run one real reconstitution through any app you are considering, milligrams of powder, millilitres of bacteriostatic water, a target dose in micrograms, and check the syringe units it gives you against your own working. This is where a mistake stops being an inconvenience and becomes an order-of-magnitude error, and it is the one feature you can verify yourself in under a minute. PepCue's calculators are on the open web with no account precisely so you can run that test without installing anything.
Then decide how much you want the app to know about the compound rather than just about your schedule. Most trackers treat a peptide as a label. If you want to know whether what you are taking has controlled human evidence behind it or only rodent data and a persuasive mechanism story, that is a different product category, and it is the one PepCue is built for. Finally, look at the incentives. An app or site that ranks vendors, carries affiliate codes or sells the compounds it also grades has a reason to shade the assessment, and you should read it accordingly, including reading this page accordingly.
FAQ.
Which peptide tracker app is the best?
There is no single answer, and any roundup that gives you one is selling something. The right app depends on whether you are running one compound or several, whether you work from vials or pens, whether you want an AI assistant or written sourced pages, and whether you are willing to pay a subscription. This page states what each app is best at and lets you match that against your own situation.
Why are there no ratings or rankings on this page?
Because we have not independently verified any app's ratings, review counts or user numbers, and printing them would mean repeating figures we cannot stand behind. A numbered ranking would also imply a measurement we never took. Every app here is listed by what it is best at instead, in no particular order.
Is there a free peptide tracker?
PepCue is free to use: a full protocol can be run without paying, and the website calculators and the entire evidence library work in a browser with no account and no install. We have not verified current pricing for the other apps listed here, so check their own listings.
What should a peptide tracker actually do?
At a minimum: record what you took and when, handle the reconstitution conversion from milligrams of powder and millilitres of bacteriostatic water into syringe units, keep a history you could show a clinician, and be honest about what is known and unknown about the compound. The first is table stakes. The second is where errors become dangerous. The last one is where most apps in this category simply do not compete.
Does PepCue tell me what to take?
No. PepCue never gives dosing guidance. The calculators do arithmetic on numbers you enter, the compound pages explain what has been published, and what to take is a conversation for you and a licensed provider.
Last checked September 2026. Competitor features and pricing change, so verify on their own site or App Store listing before you decide.