The fastest way to log your injection routine, stay on schedule, and never second-guess yourself again.
Free download · Available on iPhone · iOS 16+
Protocol A
Sun · 0.5 mL · Glute R
Protocol B
Sun · 1 mL · Thigh L
Protocol A
Wed · Upcoming
Actual app UI — OptiPin for iOS
The Problem
You second-guess whether you actually took your dose today
Your "tracking system" is a notes app or a handwritten log that you already hate
Reminders are a mess — or nonexistent
You have no real record to look back on when things feel off
The Solution
Log a dose in one tap. Get smart reminders before your next scheduled injection. See your full history at a glance. Know exactly where you are in your protocol — every single day.
Features
One-tap logging
Done in under 5 seconds. Dose, site, time — all recorded automatically.
Smart reminders
Never miss a scheduled dose. Reminders adapt to your protocol frequency.
Full dose history
Every dose, date, and note in one clean, searchable timeline.
Inventory tracking
Always know exactly what you have left. Get notified before you run out.
Private & secure
All data stays on your device. No account required to start.
Setup
Set up your schedule
Enter your routine once — frequency, timing, whatever fits your protocol. Done in under a minute.
Log each dose in one tap
Open the app. Tap log. Done. Optional: add a note on how you're feeling.
Stay on track automatically
OptiPin reminds you before each dose, tracks your consistency streak, and keeps your full record organized.
Reviews
10K+
Active users
4.8★
App Store
500K+
Doses logged
"I was tracking in the Notes app for two years. This is 10x better — I actually know if I took my dose instead of guessing."
— Michael T. · Verified App Store Review
"The reminders alone make this worth it. I travel for work and my schedule gets thrown off. This keeps me on track."
— Jason R. · Verified App Store Review
"Simple, clean, does exactly what I need. No bloat. Logging takes 3 seconds."
— David K. · Verified App Store Review
Why OptiPin
| Feature | Notes App | Spreadsheet | OptiPin |
|---|---|---|---|
| One-tap logging | ✕ | ✕ | ✓ |
| Smart reminders | ✕ | ✕ | ✓ |
| Inventory tracking | ✕ | ✕ | ✓ |
| Dose history | Manual | Manual | ✓ Auto |
| Mobile-optimized | ✕ | ✕ | ✓ |
| Consistency streak | ✕ | ✕ | ✓ |
Privacy
No account required — get started in seconds, no email, no sign-up.
On-device storage — your data never leaves your phone unless you choose to export it.
No ads, no selling your data — OptiPin is a paid app, not an advertising product.
Purpose-built — designed specifically for injection-based tracking protocols, not a generic habit app.
Download OptiPin free. Set up your schedule in under a minute. Log your first dose today.
Download Free — Start TodayDownload OptiPin
Log injections in one tap — free