Regimen
vs pinning.
Regimen is the most feature-complete peptide and GLP-1 tracker: bloodwork, progress photos, wellness markers, health-app sync, both platforms, and a library several times the size of ours. pinning is narrower on purpose — it logs injections and vials, and it shows where its numbers come from.
We make pinning, so this is not an independent review. Everything below about Regimen was checked on 6 September 2026 against what they publish themselves. Prices and features move — check theirs before deciding.
What Regimen is
A tracker built around correlation: doses in, body responses out, and an engine that looks for the relationship. It covers peptides, GLP-1, TRT and HRT, on iOS and Android.
Where Regimen is stronger
It does far more
Bloodwork charting, progress photo comparisons, 50-plus daily wellness markers, and Apple Health and Google Health Connect syncing sleep, heart rate, weight and body composition. pinning has none of that. If you want one app for the whole picture, this is the one that has it.
A bigger reference library
Regimen models a library several times the size of ours. pinning has 85 entries — and says on 61 of them that no source is recorded for the half-life.
Android
Regimen ships on both platforms. pinning is iOS only, with no Android build.
Where pinning differs
It says when it does not know
Every compound in pinning shows where its half-life came from, or states that nothing is recorded and the figure is unchecked. For most research peptides there is no published human pharmacokinetics at all, and we would rather say so than draw a confident curve over a guess.
A pin names its vial
Each logged dose is booked against a specific vial, so what is left is counted rather than estimated.
Less to fill in
This is a difference, not a win. Regimen asks for more because it does more with it. pinning asks for a dose, a vial and a site, and is finished. Which of those you want depends on whether you will actually keep it up.
Side by side
| Regimen | pinning | |
|---|---|---|
| Platforms | iOS and Android | iOS only |
| Compound library | Several times larger | 85, sourced where a source exists |
| Bloodwork and photos | Yes | No |
| Health app sync | Apple Health and Health Connect | No |
| Dose tied to a specific vial | Inventory tracking | Per dose, to one vial |
| Half-life sourcing shown | Not shown | Shown, including when absent |
| Reconstitution calculator | Yes | Yes, and public without an account |
| Data residency | Not stated | EU, Frankfurt |
Regimen is free to download and free for your first compound, with a paid tier for the full library and stacks; a figure of $4.99 a month or $39.99 a year has been published by Regimen itself. Ours is €9.99 a month or €89.99 a year, with the tracking free at any tier.
Choose Regimen if
You want bloodwork, photos and wearable data in the same place as your doses, you are on Android, or you want the largest compound library.
Choose pinning if
You want the log and the arithmetic without the rest of it, or you want to see which numbers are actually backed by something.
What is the best alternative to Regimen?
For the same breadth, nothing in this category matches it — that is the honest answer. For a narrower log that shows where its figures come from, or for EU data residency, pinning is the different trade.
Does Regimen work on Android?
Yes, iOS and Android. pinning is iOS only and has no Android build planned at this stage.
Which peptide tracker shows sources for its half-lives?
pinning does, and states explicitly when no source is recorded — 61 of its 85 entries carry that note, because no published human measurement exists for most research peptides.
For informational purposes only — not medical advice