Regimen vs Shotsy: Which GLP-1 Tracker Is Right for You? (2026)
If you're on semaglutide, tirzepatide, or retatrutide and just want to stop forgetting your weekly shot, both of these apps will get you there. But they're built for pretty different people.
Feature Comparison
| Feature | Regimen | Shotsy |
|---|---|---|
| GLP-1 dose logging | Yes | Yes |
| Injection reminders | Yes | Yes |
| Weight tracking | Yes (via Apple Health / Google Health Connect) | Yes |
| Body fat %, heart rate, sleep, blood pressure | Yes (synced from wearables) | No |
| Half-life visualizer (blood level curves) | Yes | No |
| Medication-to-health-metrics correlation | Yes | No |
| Injection site rotation | Yes | No |
| Progress photos (side-by-side) | Yes | No |
| Compound library | 600+ compounds | GLP-1 focused |
| iOS + Android | Yes | Yes |
| Community / ratings | Growing | ~19,800 ratings, 4.85 stars |
| Pricing | Free for 1 GLP-1 (all features), premium $4.99/mo | Freemium, $9.99/mo |
Regimen
Regimen is a GLP-1 tracker that gives you every feature for free when tracking a single medication. No paywalls on the half-life visualizer, no upgrade prompts to see your correlation charts. You get PK curves, injection site rotation, and health metric correlation that connects your weight, body fat %, energy levels, and cravings to your dosing timeline via Apple Health or Google Health Connect. The visual photo tracker lets you document your weight loss progress with side-by-side comparisons.
The medication-to-health correlation is the main differentiator. You can actually see how your weight and body fat respond to each dose change over time — not just that you lost weight, but when the weight loss accelerated relative to your titration schedule.
If you ever need to track more than one medication, premium ($4.99/mo or $39.99/yr) unlocks unlimited compounds.
Shotsy
Shotsy is the most established GLP-1 tracker on the market, and those numbers speak for themselves. Nearly 20,000 reviews at a 4.85-star rating means this app works for the vast majority of GLP-1 users. That kind of community validation is hard to argue with.
The app covers dose logging, weight tracking, calorie and protein logging, and medication level charts. It's focused specifically on the GLP-1 experience and does it well. If you want a proven app that thousands of people already rely on, Shotsy is the safe choice.
The tradeoff: features that used to be free have moved behind the paywall as Shotsy has grown. At $9.99/mo, it's the most expensive monthly option in this space. And if you want health metric correlation, blood level curves, or injection site mapping, those aren't part of the package.
Track your GLP-1 for free
- Half-life visualizer, correlation charts, injection site tracking
- One compound free forever, no feature paywalls
- Available on iPhone and Android
Frequently Asked Questions
Ready to track your protocol?
- Smart reminders so you never miss a dose
- Track weight, photos, and progress over time
- Medication level curves for every compound