PenWeek: GLP-1 Tracker

Hungry again by Friday? That's not you failing. It's your medication's weekly rhythm - and PenWeek shows it to you. PenWeek is a GLP-1 tracker built around the week you actually live: the shot, the site, the symptoms, and the hunger that returns before your next dose. SEE YOUR WEEK, NOT JUST YOUR DOSE Most trackers log the shot and stop there. PenWeek shows you the shape of your week - when your medication peaks, when it eases, and when the trough arrives. Semaglutide has a half-life of about seven days. Tirzepatide is closer to five. That's why day 2 feels nothing like day 6. Once you can see it, Friday hunger stops feeling like failure and starts feeling like physiology. NEVER GUESS YOUR NEXT SITE Log where you injected with a simple body map. PenWeek remembers which sites you've used recently, so rotation is one glance instead of one more thing to remember. The FDA label recommends rotating injection sites - we just help you keep track. PROTECT YOUR MUSCLE Rapid weight loss isn't only fat. Protein and resistance training help protect lean mass, but eating enough protein is hard when your appetite is gone. PenWeek gives you a protein target based on your weight, one-tap logging, and gentle training nudges. No calorie counting - you don't need it. TRACK WHAT ACTUALLY CHANGES Weight, side effects, and how you feel, logged in seconds. See how nausea, fatigue, or energy line up with your dose timing. Spot your own patterns instead of wondering. BE READY FOR YOUR APPOINTMENT Export a clean PDF of your doses, weight trend, side effects, and protein history. Bring it to your prescriber instead of trying to remember. BUILT FOR THE WHOLE JOURNEY Starting out, titrating up, holding steady, or moving to maintenance - PenWeek follows you. Weekly injectables and daily oral GLP-1s both supported. Metric and imperial. WHY PENWEEK - Dose reminders you control - Injection site rotation you can see - The weekly curve, explained - Protein target and muscle-preservation nudges - Side effect and weight tracking - One-page PDF for appointments - Maintenance mode for life after goal weight - Supply tracking so you never run out - Private by design. Your logs are yours. - No ads. Ever. IMPORTANT PenWeek is a tracking and education tool. It does not provide medical advice, diagnosis, or treatment, and it does not recommend doses. The weekly curve is a general educational estimate based on published half-life data - not a measurement of your body. Everyone responds differently. Always follow the guidance of your prescriber. Questions? Email [email protected]. A real person answers.