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Settings → Daily targets. Every number is editable, including the macros in grams. Type over one and Fuel8 stops recalculating it behind your back; there’s a button to hand it back if you change your mind. The same screen explains which formula produced the original figures.

Long-press the item on Today, then Edit or Delete. Editing lets you change the portion and the meal, but not swap the food itself. An edit that could quietly turn last night’s salmon into chicken would be worse than deleting the row and adding the right one.

Tap the date in the title bar at the top of Today, or use the arrows either side of it, and pick the day. Everything you add then goes to that day, and the app says so on the button before you commit. Future days aren’t allowed.

You can type the nutrition panel in yourself and attach it to that barcode, with a per-100 g or per-serving switch because labels differ. From then on that product resolves on your phone with no connection. If your device can’t run the scanner you’ll get a keypad to enter the digits instead.

Fuel8 only uses on-device speech recognition, so your voice never leaves the phone. On a device or in a language where iOS can’t recognise speech locally, Fuel8 refuses to fall back to the server version and offers typing instead. That’s deliberate, not a fault.

Settings → Apple Health shows exactly which types are read and written. Permissions themselves live in Apple’s Health app, under Sharing → Apps. The same screen can remove the samples Fuel8 wrote. Only its own, never anything you or another app recorded.

Settings → Delete all my data. One screen, no network needed. It wipes your log, weight history, profile, targets and saved plates, and offers separately to remove the Health samples Fuel8 wrote. If any part fails it tells you which part rather than reporting success. An online account, if you made one, is deleted separately: in the app under Fuel8 Pro & Apple Account, or on your account page here.

Settings → Fuel8 Pro & Apple Account. Sign in with Apple is the only sign-in, and signing in on its own sends nothing. The switch beneath it, “Send my records to my account”, is off until you turn it on; a second switch shares steps and active energy from Apple Health, and “Send now” pushes everything immediately. Turning sync off stops sending. What was already sent stays on your account page until you remove it there.

Your coach gives you a code. Sign in on this site, open your account page, and type it into the Coaching box. The coach is then listed there with a Stop sharing button, and either of you can end it at any time. A workout a coach sends arrives in the app for you to add or dismiss.

Not available yet. Fuel8 has no export feature today. Synced records are readable on your web account, but the app has no export or restore button.

Deleting the app removes its local records. If you enabled sync, the copy already sent to your Fuel8 account remains readable on the web. Fuel8 does not yet restore that copy onto another phone. Signing in alone does not upload or back up a diary.