Never miss shot day again.
ShotLock is the GLP-1 tracker with teeth: when it's time for your dose, it can block your distracting apps until you log it. Estimated medication levels, trial benchmarks, progress photos — and your data never leaves your device.
The only tracker that won't take no for an answer
Reminders are easy to swipe away. ShotLock's Protection mode uses Apple's Screen Time All Apps category to block every non-system third-party app — social, games, streaming, whatever steals your evening — from shot time until your dose is logged. Log your shot, get your apps back. It's the nudge that actually works.
- You choose when protection arms around your shot time
- Logging your shot instantly unlocks everything
- Powered by Apple's Screen Time framework — private by design
See what's in your body, not just what you injected
Every dose follows a curve: absorption, peak, fade. ShotLock models your estimated medication level from your actual shot history and shows where you are in your weekly cycle — so side-effect windows and hungry days finally make sense.
- Pharmacokinetic curve built from your logged shots
- Cycle phases explain how each week typically feels
- Side-effect logging that maps onto your cycle
Every shot, with what's still active
ShotLock's Journal isn't just a log. Each entry shows the estimated medication still active from that dose — a progress bar that fades as the half-life curve runs down. Scroll your full shot history, newest first, with dose, site, and edit controls on every card.
- Per-shot remaining medication bar, modeled from your actual injection times
- Full scrollable history — tap any shot for details
- Same pharmacokinetic model as the Today screen's estimated levels
Quick countdown or a full titration runway
Track pens and vials two ways. Quick mode counts pre-loaded doses at a fixed mg amount — perfect for a pen in the fridge. Titration Plan maps your dose ladder, vial inventory, and projects a week-by-week runway with vial depletion markers.
- Quick mode — add doses, see run-out date at a glance
- Titration Plan — multi-step doses with vial draw planning
- Weekly runway table and refill reminders before you run dry
Am I on track? Now you can actually answer that
ShotLock plots your weight curve against published clinical-trial results — STEP 1 for semaglutide, SURMOUNT-1 for tirzepatide — week by week. No vibes, no guessing: a cited, honest benchmark of how trial participants progressed at the same point.
- Week-by-week comparison with published trial curves
- Every number cited in the in-app Research Library
- Informational only — your clinician sets your goals
The scale plateaus. Photos don't.
Take aligned progress photos with onion-skin overlay, compare any two days with a reveal slider, and turn your whole journey into a shareable timelapse — including a celebration video made for sharing.
- Onion-skin camera lines up every shot perfectly
- Before/after reveal slider and side-by-side compare
- Journey timelapse and celebration video export
Everything else a serious tracker needs
Smart shot schedule
Weekly or custom cadence, injection-site rotation, and dose titration that follows your prescribed ladder.
Side-effect journal
Log nausea, fatigue and more in seconds — then see how your patterns compare with published trial rates.
Supply tracker
Quick dose inventory or a full titration runway — pens, vials, weekly projections, and refill reminders.
Weight & BMI trends
Clean charts with weekly averages, BMI bands, and goal tracking that respects how real progress looks.
Daily check-in
A 10-second check-in for weight, symptoms and notes — your journal builds itself.
Data export
Take a clean PDF summary to your next appointment, or export your raw data anytime. It's yours.
Private by architecture, not by promise
ShotLock works without an account. Your shots, weight, photos and notes are stored on your device — we couldn't read them if we wanted to. No ads, no data sales, no third-party trackers. That's also why our cookie banner is the shortest one you'll see this year.
Read our privacy approach →Frequently asked questions
What is ShotLock?
ShotLock is a GLP-1 tracking app for people on medications like Ozempic, Wegovy, Mounjaro and Zepbound — on iPhone and Android. It tracks your shots, estimates your medication levels, logs side effects and weight, and — uniquely — can block your distracting apps until you've logged your dose on shot day.
How does the app blocking actually work?
ShotLock uses Apple's Screen Time (Family Controls) framework with the All Apps category. When protection arms around your shot time, every non-system third-party app is blocked. The moment you log your dose, everything unlocks. Apple's framework means ShotLock never sees what's inside your apps.
Which medications does ShotLock support?
Ozempic, Wegovy, Mounjaro, Zepbound, compounded semaglutide and tirzepatide, and retatrutide (chart support). Weekly and custom schedules are supported, including dose titration.
Are the medication level estimates accurate?
They're modeled estimates based on published pharmacokinetics (your medication's absorption and half-life) applied to your actual logged shots. They're informational — useful for understanding your weekly rhythm — not a measurement or medical advice.
What do the clinical trial comparisons show?
ShotLock plots your weight progress against published results from trials like STEP 1 (semaglutide) and SURMOUNT-1 (tirzepatide) at the same week of treatment. Every figure is cited in the in-app Research Library. Individual results vary widely — the benchmark is context, not a target.
Is ShotLock free?
Yes — shot logging and weight tracking are free forever, no account needed. Premium unlocks Shot Protection, med-level estimates, trial benchmarks, progress photos and more, with a free trial so you can test everything first.
Where is my data stored?
On your device. ShotLock doesn't require an account, doesn't upload your health data, and doesn't sell data to anyone. You can export or delete everything at any time.
Is ShotLock available on Android?
Yes — ShotLock is on Google Play and the App Store. On iPhone, Shot Protection uses Apple's Screen Time framework. On Android, focus protection uses the AccessibilityService API to show the ShotLock shield when you open gated apps at shot time.
Your next shot is the one that matters.
Download ShotLock free, log your first shot in under a minute, and let your phone work for your routine instead of against it.