Level now and over time
An estimated level from your own jabs, with a graph that looks back and ahead. Touch the graph to read any point.
Track your GLP-1 medication level
Peakfade is a free, open-source app made for GLP-1 medicines such as semaglutide, tirzepatide and retatrutide. It works with any other medication or supplement too. Log your jabs, weight and side effects, plan ahead and see an estimated level over time.
Coming soon
Peakfade is in private testing and opens to everyone later.
Plan on a real calendar
Repeat every few days, on set weekdays or on dates you pick. Move or skip a planned jab when life changes.
What to expect each day
See where you are in the jab cycle, what to watch for at that point and a tip for those days.
Other medications and supplements
Add any medication or supplement, injected or by mouth. Enter its half-life, time to peak and bioavailability, and Peakfade estimates its level the same way. Without them, it simply logs and plans your doses.
More than jabs
Weight
Log your weight and see the change since your first entry, over the last 4 weeks and per week. Add your height to see your BMI too.
Side effects and how you feel
Log your side effects, how strong they were and how you feel each day, including hunger and cravings. Peakfade shows which days after a jab they usually appear.
Supplies
Peakfade estimates how much is left in each pen, vial or pack, how many doses that is and how long it lasts with your planned jabs.
Everything in one log
One list and one calendar for everything: jabs with injection sites, weight, side effects, how you feel and your supplies.
Share with a coach Coming later
Invite a coach by email. They sign in with their own Peakfade account and see all your logs and notes. You decide whether they can also plan your jabs.
Peakfade never shows your email to coaches, and you can remove a coach at any time. Coaching several people? Switch between them in the app, and your own data stays separate.
Apps and AI assistants Coming later
Connect Peakfade to your own scripts, shortcuts and devices through an API, or to AI assistants through MCP. Ask an assistant about your logs, or add entries without opening the app.
You choose what each connection may do: read, add and edit, or delete. Nothing is shared until you connect it, and you can remove access at any time.
Your data
Your data is stored in the EU. Peakfade's database runs in Cloudflare's EU jurisdiction. The app reaches you through the Cloudflare data centre nearest to you, which can be outside the EU depending on where you are.
No ads. No analytics or tracking scripts. You can download or delete all your data at any time.
Contact
Questions, ideas or found a bug? Write to support@peakfade.com.