PenDay: GLP-1 Shot Tracker
Doses, weight & side effects
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Private, on-device logbook for weekly GLP-1 injections. Log every shot, rotate sites, track weight, and generate a doctor-visit PDF — no account, no servers.
PenDay is a private logbook and reminder for weekly GLP-1 injections (semaglutide, tirzepatide). It records what you enter and reminds you of your own schedule — nothing more, nothing less.
THE WEEKLY LOOP
• A next-shot countdown on your home screen and in an iOS widget.
• Log a shot in about five seconds: dose is pre-filled, pick the injection site on a body map.
• See the site you've used least recently, front and back, as a simple fact.
• Reminders on your shot day, created on your device — nothing is pushed from a server.
THE DAILY LOOP
• A ten-second check-in for side effects and an optional mood tick.
• Record weight manually, or show weight and steps from Apple Health (read-only).
• Watch your weight trend take shape over time.
FOR YOUR DOCTOR
• Generate a one-tap Doctor-Visit PDF: weight curve, injection log, dose history, and a side-effect summary — all as entered by you.
PRIVATE BY DESIGN
• No account. No sign-in. No servers. Your entries stay on your device.
• Your health data never leaves your device — not in exports, not in the report, not anywhere.
• Move to a new phone with an encrypted transfer file that only your passphrase can open.
PenDay is a logbook. It records what you enter; it does not provide medical advice, interpret symptoms, or recommend doses. For questions about your medication, talk to your doctor or pharmacist.
PenDay Pro (optional subscription) unlocks the doctor-visit report, full history and trends, dose-change overlays, site-rotation history, pen-supply tracking, and the widget. A 14-day free trial is included. Monthly, yearly, and lifetime options are available.
Legal
To use this app, you must agree to our End User License Agreement (EULA), available: Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
To use this app, you must agree to our Privacy Policy, available: https://qooplabs.com/penday/privacy-policy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, QoopLabs, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- QoopLabs OU
- Size
- 35.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
18+
- 18+
- Frequent
Medical Treatment information
- In-App Purchases
Yes
- PenDay Pro Lifetime $79.99
- Yearly $39.99
- PenDay Pro Monthly $4.99
- Copyright
- © 2026 QoopLabs OÜ