You choose how often.
Anywhere from every day to once a week. If you can't make it on your day, the rest of the period still counts.
All Intro Labs appsIn beta · iPhone
Your physical change, in aligned photos.
Take your photos from the same angle every time and Buddy lines them up for you. See your before and after, your time-lapse and your streak. Everything stays on your iPhone.
How it works
One photo at a time.All your change at once.
01 · Camera
The same pose, every time.
The camera shows your first photo as a ghost, with guides, and tells you when you're lined up. Front, side, back or face: whichever angles you pick.
02 · Home
Your streak, every day.
Your streak, how much your weight changed and where the trend is heading, on one screen. Every milestone gets celebrated: 7, 30, 60, 90 days and beyond.
03 · Compare
See your real change.
Pick two days and slide from before to after, with the photos already aligned. You see how much your weight and waist dropped in between.
04 · Time-lapse
Months, in seconds.
Every photo from one angle, one after another and aligned, with each one's date and weight. Export it as a video and share it.
The details
Built to keep your streak alive.
What keeps you coming back every week: a pace you choose, timely reminders and every bit of progress in sight.
Check-in due9:00 AMTake your photos and log your weight. You're at 59 days.Last day for your check-inYesterdayDo it today and your streak continues.A nudge when it's time.
A reminder on the first day of each period, at the time you pick. If it's the last day and you haven't checked in yet, it reminds you again.
Every milestone, celebrated.
Hit 7, 14, 30, 60, 90, 180 or 365 days and your check-in ends in confetti.
Your photos, only on your iPhone.
No account, no server, no internet. And if you want, lock the app with Face ID.
Share your change.
One image with both photos aligned, their dates and how much you lost, ready to send.
Your whole history, at hand.
A calendar with every check-in and a gallery by week, with your average weight. Tap a day to see its photos and measurements.
Weight and waist.
Every check-in saves your weight and, if you want, your waist. In kilograms or pounds, centimeters or inches.
FAQ
Questions.
No. Buddy has no accounts and no servers, and it doesn't send data anywhere: your photos and measurements stay on your iPhone. Only what you export or share leaves it.
No. Buddy always works offline.
You decide: every day, every 2 or 3 days, or as little as once a week. If you can't make it on your day, the rest of that period still counts toward your streak.
Buddy recognizes your body in each photo and positions it so it sits in the same spot as the others. If one is off, you can adjust it by hand using another photo as a guide.
An iPhone with iOS 26 or later.
Buddy is in beta. Drop us a line and we'll add you so you can try it before launch.
Open beta · iPhone
Join the betaStart your streak before anyone else.
Buddy is already in beta. Drop us a line, we'll add you, and you'll help us polish it before launch.
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