Penly: GLP-1 & Weight Tracker

Penly is a GLP-1 tracker and calm shot journal: know your next dose day, where to inject and how your weight is really trending. Logging takes seconds.

Works with Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Rybelsus®, Saxenda®, Trulicity® and compounded semaglutide or tirzepatide.

Weekly shots, daily water, a scale that jumps around, side effects on day two: it is a lot to keep in your head. Penly keeps it in one place, so you can focus on feeling better and bring real notes to your doctor.

NEVER MISS A DOSE DAY
• A reminder on your dose day with the suggested site
• Log a shot or a pill in two taps, from a widget, a quick tile or a home screen shortcut
• A check-in if a dose was not logged, a dose day checklist and a timer for the pen out of the fridge
• Supply count with a refill reminder

ROTATE INJECTION SITES
• A body map suggests the next site and shows what you used last week
• Turn off any area you never use

SEE YOUR REAL TREND
• Log weight with a smooth drag ruler in kg or lb
• Trend line that ignores daily noise, goal and progress in percent
• Body measurements: waist, hips, chest, belly, arm, thigh, calf, neck and body fat, each with its own chart
• BMI over time once you add your height
• Milestones for steady progress, including centimeters and inches lost

HOW YOU FEEL
• Side effects in seconds, and patterns by day after your dose
• Food noise and fullness on a simple 1 to 5 scale
• Meals with protein, water and protein goals, other daily medications

SHARE AND PREPARE
• A weekly story you can share, with weight hidden unless you choose to show it
• Progress photos with a before and after slider
• A clear PDF report with doses, weight, measurements and BMI for your doctor
• Questions for your doctor, saved for your next visit

WHO IT IS FOR
• Anyone starting a GLP-1 who wants a simple routine
• People on weekly shots who rotate sites
• Those on a daily pill who want a steady reminder
• Anyone tracking inches when the scale is slow
• People who finished a course and want to watch how their weight settles

QUICK ANSWERS
Is Penly a Mounjaro app?
Yes. It works as a Mounjaro or Zepbound tracker for tirzepatide and as an Ozempic or Wegovy tracker for semaglutide. Pick your medication and dose, and reminders follow your schedule.

How do I keep track of my GLP-1 shots?
Log each dose in two taps. Penly saves the site, suggests the next one on a body map and reminds you on your dose day.

Can it be my weight loss tracker?
Yes. Log it with a drag ruler and see a trend line, your goal, BMI and body measurements for the weeks when the scale is slow.

HOW IT WORKS
1. Choose your medication, dose and dose day: weekly shots or a daily pill.
2. Log a dose in two taps and let the body map pick the next site.
3. Add side effects, water and protein when it suits you.
4. Follow the trend and bring a clear report to your doctor.

ALL FEATURES
• Dose reminders, logging of doses, weight, measurements, side effects, meals, water and protein, site rotation, weight trend, BMI, milestones, weekly story and widgets.
• Estimated medication level from published half-life data, weekly pace and goal date, side effect and appetite patterns, progress photos, doctor PDF, Health Connect sync with steps, supply tracking, all widgets, CSV export, and fingerprint or screen lock.

Your journal stays on your phone and in your encrypted Google backup. Health entries are never sold or used for ads.

Penly is a personal journal, not a medical device, and does not give medical advice. It never recommends or changes doses: always follow your prescriber. Medication levels are estimates. Ozempic, Wegovy, Mounjaro, Zepbound, Rybelsus, Saxenda and Trulicity are trademarks of their owners; Penly is not affiliated with them.

Recent changes:
Release