The peptide tracker that
keeps your routine on track.
Bo logs the doses you were prescribed, reminds you when the next shot is due, rotates your injection sites and shows estimated GLP-1 levels between doses. Log it in three seconds and move on.
Set up once, log in seconds
Three steps between your first dose and a log you never have to think about.
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1
Add your medication
Pick your peptide or GLP-1, then enter the dose and schedule your prescriber gave you. Bo never calculates or suggests a dose.
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2
Log the shot
Confirm the dose you took, tap the spot on the body map, done. Weekly pens get a next-dose countdown on the Lock Screen.
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3
Bo keeps the rest
Reminders, streak, estimated levels between doses and a PDF for your doctor. Everything stays on your phone.
Everything your protocol needs
One friendly app for the whole routine. No spreadsheets, no guesswork.
Dose log
Log the dose you were prescribed in a few taps, with time, site and notes. Pens, vials, tablets, nasal sprays and more.
Dose reminders
A ping at your time, a streak-save nudge at night, and a Lock Screen countdown before a weekly shot.
Injection-site rotation
Tap-anywhere body map remembers every site so tissue gets time to recover between shots.
Estimated levels
A curve of what is likely still in your system, built from your log and FDA-label half-lives for 38 compounds.
Ask Bo AI chat
A peptide-smart assistant that knows your doses, meals and activity, and answers in plain language.
Food & calorie tracker
Snap a photo and Bo logs calories, protein and macros, right on your home screen.
GLP-1 food scoring
On sema, tirz or reta? Every meal gets a good / caution score with a one-line tip.
Streaks, Health & a daily coach
A daily flame with freezes, Apple Health steps and sleep, and one fresh focus from Bo each day.
Doctor-ready export
One tap in Analytics turns your whole history into a clean PDF: every dose with its site and notes, plus weight and nutrition trends. Free.
Designed to be a joy to use
Soft, friendly, and fast. The same Bo, screen after screen.
Weekly pens and vials you mix yourself
Most trackers pick one. Bo keeps a GLP-1 pen and a research peptide in the same log.
On a GLP-1 medication
Weekly schedule with a late-dose window, next-shot countdown, estimated levels between doses and a food score for every meal.
Ozempic · Wegovy · Mounjaro · Zepbound · Retatrutide
Running a peptide protocol
A log for every vial, daily reminders, site rotation that copes with two injections a day, and half-life data for BPC-157, TB-500, CJC-1295, ipamorelin and 34 more.
Snap your meal. Bo does the math.
Point your camera at a plate and Bo logs the calories and macros in seconds. No weighing, no guessing. On a GLP-1, every meal gets a fit score too.
- Photo, camera or text meal logging
- Calories, protein, carbs and fat
- GLP-1 score with a one-line tip
Ask Bo anything
Your peptide companion knows your doses, meals and activity, then answers in plain language. Not a doctor, but a really good friend who reads a lot.
- Peptide-trained knowledge base
- Context-aware about your routine
- Clear answers, never medical advice
Bo has been paying attention
See your peptide story in numbers. Bo spots your patterns, your most consistent days, and where you are trending, then tells you what it noticed.
- Clean analytics and dose timeline
- Personalized insights from your data
- Streaks, averages and trends at a glance
Free tools and guides
Sourced data and simple web tools, right in your browser. These live on this website only and are not part of the Bo app.
Questions people ask before installing
Is Bo free?
Bo is free to download. Estimated medication levels, the injection-site map, widgets and the doctor PDF are free; dose logging, AI meal scanning and Ask Bo chat need a Premium subscription. Get Bo on the App Store →
Does Bo work with Ozempic, Wegovy, Mounjaro and Zepbound?
Yes. Bo knows the weekly schedule for semaglutide and tirzepatide, reminds you when the next shot is due, and draws an estimated-levels curve from your logged doses using the half-lives on the FDA labels. Bo for Ozempic and Wegovy →
Does Bo calculate my dose?
No. Bo is a tracker. You enter the dose your prescriber gave you and Bo logs it, reminds you when the next one is due and keeps your history. Your dose, and how to measure it, should always come from your prescriber or pharmacist. What a good dose log contains →
What are estimated levels?
A curve of how much medication is likely still in your body between doses, calculated from your own log and the published half-life of each compound. The numbers are population averages, so treat the curve as a guide to timing, not a lab result. GLP-1 half-life chart with sources →
How does injection-site rotation tracking work?
Tap where you injected on a body map and Bo drops a pin. The map shows which spots you used recently so you can pick one that has had time to recover. It works for weekly GLP-1 pens and for daily peptide injections. Injection-site rotation guide →
Is my data private?
Your peptide library and dose history stay on your device. There is no account and no sign-up. Only a meal photo or an Ask Bo question is sent to a server, and only when you use those features. Bo does not sync to iCloud yet, so back up your phone. Privacy policy →
Is there an Android version?
No. Bo runs on iPhone and iPad with iOS 17 or later. There is no Android or web app. Get Bo on the App Store →
Can I export my history for my doctor?
Yes, and it is free. One tap in Analytics builds a PDF with every dose, its site and notes, plus weight and nutrition trends, ready to share before an appointment. What a good dose log contains →
Is Bo medical advice?
No. Bo is a tracking tool. It never calculates or suggests a dose, and the half-life data on this site links to the FDA label or study it came from so you can check it yourself. Who builds Bo and the editorial rules →
How is Bo different from Shotsy or MeAgain?
Those apps are built around branded GLP-1 pens. Bo logs both weekly pens and vial-based peptides in one place, with estimated levels for 38 compounds, meal scanning and an injection-site map. Compare GLP-1 and peptide tracker apps →
Bo is an informational and tracking tool only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Peptides and research compounds referenced in the app are intended for laboratory and research purposes only and are not for human consumption. Bo does not sell, supply, promote, or encourage the use of any compound. The AI assistant ("Ask Bo") is for general education only and can be inaccurate or incomplete. Always consult a qualified healthcare professional before making any health decision. See our Terms of Use and Privacy Policy.
Take your shot. Bo's got the rest.
Dose log, reminders, site rotation, estimated levels and a food coach in one app. Free to start.
Download Bo free →