WeightSnapWeightSnap vs Regimen: Which Peptide Tracker Is Right for You?
Last updated: September 2026
Regimen and WeightSnap are two trackers built for people whose routine goes beyond a single GLP-1 pen. They just bet on opposite philosophies. Regimen bets on more data: a 150+ compound library, 50+ daily check-in markers, bloodwork, and pharmacokinetic level curves. WeightSnap bets on more answers from less logging: a verdict card that tells you whether the medication is working, Stall Check when your trend goes flat, Wear-Off Detection, and a by-feel mode that needs three taps a day.
Choose Regimen if you run a large stack, track bloodwork, or want a web app and one account across your devices. Its free first compound is a real deal. Choose WeightSnap if you want the app to interpret your data instead of asking you for more of it: a plain-language verdict, stall analysis, wear-off detection, cycle recaps, and a daily check-in that takes three taps instead of a questionnaire. And there is no account: nothing to sign up for, ever.
More markers, or more meaning?
Regimen's pitch is 50+ check-in markers. That depth is real, and for people who love logging it is a feature. But most people on a GLP-1 quit tracking apps because the logging becomes homework. WeightSnap's by-feel mode inverts the deal: three one-tap questions a day (how you ate, how you moved, how the dose feels), your phone supplies steps, and a weigh-in takes seconds to type or syncs from a smart scale. From those inputs it still builds a Feel Report, cycle recaps, and a verdict. Prefer the numbers? Full-detail tracking is one setting away, and you can switch any time.
The second difference is what happens after you log. Regimen charts your levels and correlates markers against dose history; the reading is left to you. WeightSnap issues the reading: a verdict backed by receipts, Stall Check showing what changed versus what held when weight goes flat, Wear-Off Detection when late-cycle fade repeats, and an Earn It wall that turns showing up daily into something you can see.
Feature comparison
| Feature | WeightSnap | Regimen |
|---|---|---|
| Answers "is it working?" (verdict card) | Yes | No (charts and correlations, no verdict) |
| Stall analysis (what changed vs what held) | Yes | No |
| Wear-off pattern detection | Yes (Beta) | No |
| Cycle-by-cycle recaps | Yes | No |
| Minimum daily logging | Three taps (by-feel mode) | Check-in questionnaire (up to 50+ markers) |
| Daily habit layer (Earn It) | Yes | No |
| Medication-level chart | Yes (saturation chart) | Yes (PK curves, free for first compound) |
| Compound library | 30+ peptides and blends, plus custom | 150+ compounds |
| Bloodwork tracking | No | Yes |
| Reconstitution calculator and vial inventory | Yes | Yes (calculator) |
| Progress photos | Side by side, slider, overlay, stat overlays; time-lapse on iPhone | Yes |
| Prescriber export | PDF summary and CSV | Yes |
| Accounts | None; data stays on the phone, carried to a new one by its own backup | Account with cloud sync |
| Platforms | iPhone, Android | iOS, Android, Web |
| Ratings | 5.0 stars (70+ ratings) | 4.9 stars (230+, per their site) |
| Price | Free for one med; 14-day trial, then $7.99/mo, $34.99/yr, or $69.99 lifetime on iPhone; $4.99/$24.99/$49.99 on Android | Free for 1 compound; $4.99/mo or $39.99/yr |
Why WeightSnap wins
It gives you the reading, not just the chart. The verdict, Stall Check, Wear-Off Detection, and cycle recaps have no Regimen equivalent. Regimen hands you the data; WeightSnap tells you what it says.
Three taps instead of fifty markers. By-feel mode is the only tracking style in this category built for people who hate tracking, and you can flip to full detail whenever you want.
A habit layer. Earn It turns the daily question "did you earn it today?" into a wall you build one brick at a time, with focused resets of one day, three days, or a week.
No account, ever. No sign-up screen, no email, nothing to create: download and start. Regimen's cross-platform sync runs on an account; WeightSnap has no sync at all, and its data lives on your phone, carried to a new one by an iPhone's iCloud Backup or an Android phone's Google backup, so there is no server-side profile of your medication history anywhere.
A lifetime option. $69.99 once on iPhone, $49.99 on Android. Regimen is subscription only beyond the first compound.
Where Regimen is strong
Free for your first compound, with every feature unlocked. If you track one GLP-1 and nothing else, that is hard to argue with.
Bloodwork tracking. If labs are central to how you run your protocol, Regimen covers ground WeightSnap does not.
A 150+ compound library against WeightSnap's 30+ plus custom entries, and pharmacokinetic modeling with published methodology.
Cross-platform. iOS, Android, and a web app, in 18+ languages, with one account carrying your data across all three. WeightSnap runs on iPhone and Android, but there is no web app and no cross-device sync.
Which app should you use?
Choose WeightSnap if
You want answers, not homework: a verdict on whether it is working, stall and wear-off analysis, and a three-tap daily check-in. You care about keeping your medication history off servers, or you want to pay once.
Choose Regimen if
You run a large stack, log bloodwork, want the deepest compound database, or need web access and one account across your devices. Free for your first compound, so trying it costs nothing.
Frequently asked questions
Which is better, WeightSnap or Regimen?
Different bets. Regimen is the deeper database; WeightSnap is the deeper interpreter. If you want to log more, pick Regimen. If you want to log less and be told what your data says, pick WeightSnap.
Does Regimen tell you if your GLP-1 is working?
It shows estimated levels and marker correlations, but it does not issue a verdict. WeightSnap reads Building, Working, Steady, or Worth watching, with receipts, plus Stall Check and Wear-Off Detection.
Which app requires less logging?
WeightSnap, by design. By-feel mode is three one-tap questions a day, with no food logging and no wearable required.
Does WeightSnap track bloodwork?
No, that is a real Regimen advantage. WeightSnap exports a clean PDF your prescriber can read alongside labs.
Does WeightSnap work on Android or the web?
Yes on Android, no on the web. WeightSnap runs on iPhone (App Store) and Android (Google Play). There is no web app, and there is no cross-device sync, so if you need a browser or two devices sharing one account, Regimen is the stronger choice on that front.
Is WeightSnap free like Regimen?
Both are free to start: Regimen for your first compound, WeightSnap for one medication with no time limit. WeightSnap's yearly plan carries a 14-day trial of everything, then it is $7.99 a month, $34.99 a year, or $69.99 once for lifetime access on iPhone, and $4.99, $24.99, or $49.99 on Android. Regimen is $4.99 a month or $39.99 a year.
This comparison is based on each app's public App Store listing and website as of July 2026. Regimen is a trademark of its owner. Spotted something out of date? Tell us and we will fix it.
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The verdict, Stall Check, Wear-Off Detection, and by-feel tracking. No account needed.
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