PSMF Diet
A tracker for the protein sparing modified fast. It works out a daily protein target from your lean body mass, logs meals, weight and water, and schedules refeed days.
Needs an iPhone with iOS 17.0 or later.
Support
How do I restore a subscription after reinstalling?
Tap Restore Purchases on the subscription screen. Use the same Apple ID you subscribed with. This also works on a second iPhone.
How do I cancel a subscription?
Open the Settings app on your iPhone, tap your name, then Subscriptions, then PSMF Diet, then Cancel Subscription. You keep access until the end of the period you already paid for.
Does the app work offline?
Yes. You only need a connection to buy or restore a subscription.
Is my data backed up?
Your logs are stored on the phone. A normal iCloud or computer backup of the phone includes them.
Is this medical advice?
No. PSMF is a very low-calorie diet and should be done with a doctor's supervision. The app is a tracking tool.
Something else? Email tustison@protonmail.com with your iPhone model, iOS version and what happened.
Privacy
Your weight, food logs and other entries stay on your iPhone. The app has no accounts or analytics, and Apple handles subscriptions.