Sustain: GLP-1 Dose Tracker
Zepbound, Wegovy & Peptide Log
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Sustain is the nutrition companion built for people on GLP-1 medications — Ozempic, Wegovy, Mounjaro, and Zepbound.
The medication handles the weight loss. Sustain handles what it can't: protecting your muscle, managing the day to day, and keeping your results once you get there.
PROTEIN-FIRST TRACKING
Log food by search, barcode, photo, voice, or one-tap staples. Half-portion logging built for smaller GLP-1 appetites — no more editing serving sizes down. Protein is the hero number, because muscle is what's at risk.
KEEP IT OFF
A Retention Score tracks how well you're protecting your results, with a maintenance and off-ramp mode for life after the drug — the phase most apps ignore.
AI COACH
Ask about protein, energy, side effects, or muscle. Answers are grounded in your own logged data.
BODY COMPOSITION
Track lean mass vs. fat, not just the scale. Watch fat leave while muscle stays.
FOOD NOISE, MEASURED
Log the mental food chatter and watch it quiet over your dose cycle.
SMART REMINDERS
Dose-cycle, protein, hydration, and meal-variety nudges — tuned to a GLP-1 routine.
DOCTOR-READY
Export a clean PDF summary for your appointments.
Sustain provides general wellness and nutrition guidance, not medical advice. Always consult your healthcare provider about medication and dosing.
Protect your progress. Download Sustain today.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sustain-proxy.vercel.app/privacy
• Choose your units: kg or lb, cm or ft/in, during setup or in Settings.
• Change your medication and dose any time, including daily medications.
• See what Sustain Pro includes right after setup.
• Bug fixes and improvements.
The developer, VexAI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- User Content
- Search History
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Vexai LLC
- Size
- 12.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Sustain Pro (Annual) $29.99
- Sustain Pro (Monthly) $9.99
- Copyright
- © 2026 Vexai LLC