Track Zepbound, calmly
Your weekly shot — pen or vial — the sites you rotate, the side effects you notice, and your weight, together in one app built for how your body changes.
Get on the App Store
Your weight journey, gently tracked
Log a pen or a vial
Zepbound comes as a prefilled pen and as single-dose vials. Tonic logs either one, so every weekly dose lands in the same history.
Follow the climb to your dose
Zepbound steps up through six doses from 2.5 to 15 mg. Tonic shows your current dose and your weeks on it.
Check in on side effects
A daily check-in lets you note how you're feeling in a tap, and Tonic tracks the patterns over time — quietly, without guilt on the hard days.
Watch your weight trend
Weight, measurements, and progress photos in one timeline, so a single heavy morning doesn't throw you off.
Tonic is a tracking and wellness companion — not medical advice, and not affiliated with any pharmaceutical manufacturer. Always follow your doctor’s guidance on your medication and dose.
Zepbound + Tonic, answered
Can I track Zepbound in Tonic?
Yes. Log each weekly Zepbound dose, rotate your injection sites, check in on side effects, and follow your weight over time.
Can I log both pens and vials?
Yes. Zepbound ships as a prefilled pen and as single-dose vials. Tonic lets you record whichever you use, so your dose history stays in one place.
Zepbound vs Mounjaro — what's the difference for tracking?
Zepbound and Mounjaro are the same molecule, tirzepatide, under different labels. Tonic tracks either one the same way. See the Mounjaro page or the tirzepatide page for more.
Does Tonic work if I'm on Zepbound for sleep apnea?
Zepbound is prescribed both for weight management and for obstructive sleep apnea. Either way, Tonic tracks the same weekly shot, your sites, and how you feel.
Does it sync with Apple Health?
Yes — you choose what to share, one data type at a time. Weight and water can sync back so your timeline stays in step.
Start tracking your Zepbound journey
Download on the App StoreiPhone · No ads, ever · Apple Health sync