PreMax scores your food as pre-workout fuel. Snap a photo of a meal or snack and get a clear S to F grade for the workout you are about to do, along with a session forecast for energy, strength, and crash risk.
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Open the app, tap to start a scan, and either take a photo of your food, pick one from your library, or search for it by name. PreMax recognizes the food, pulls its nutrition, and scores it for your selected workout.
Every food gets a letter grade from S (elite fuel for this session) down to F (a poor choice before this workout). The same food is graded differently for different workouts: leg day and cardio reward carbs, while heavy or greasy food is penalized before sprints and HIIT. Tap into a result to see the full forecast and your best fuel window.
New users get 3 free scans. After that, a PreMax Pro subscription unlocks unlimited scans and the full session forecast. Two options are offered:
Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period.
Open Settings inside PreMax and tap Restore Purchases. This re-applies any active subscription tied to your Apple ID.
Subscriptions are managed by Apple, not inside the app. On your iPhone, open the Settings app, tap your name at the top, tap Subscriptions, select PreMax, and tap Cancel Subscription.
PreMax uses an anonymous account with no email or login. Your scan history and preferences are stored on your device, so deleting the app removes them. Your food photo is sent only to recognize the food and is not stored on our servers. See the Privacy Policy for details.