FAQ
Frequently asked questions
Short, honest answers. Missing yours? Reach out via support.
In short
Weekfuel is an iPhone app for counting calories by the week instead of by the day. You get a weekly budget, log food by AI photo or search, steps come from Apple Health, and your weight trend shows real progress. The app is currently free and needs no account.
About the weekly approach
What is a weekly calorie budget?
The sum of your daily targets for seven days, for example 14,000 calories. Within that total, individual days can be bigger or smaller.
Is a calorie deficit daily or weekly?
Your weight follows the balance over time. A bigger day is offset by lighter ones.
Can I eat more on weekends and still lose weight?
Yes, if you eat a little less on weekdays and the week stays in a deficit overall. See eat more on weekends.
How much weight can I lose per week?
For most people 0.25 to 0.75 kg (0.5 to 1.5 lb) per week is realistic and sustainable. Try the calorie deficit calculator.
About the app
Which devices does Weekfuel support?
iPhone, via the App Store.
How much does Weekfuel cost?
Weekfuel is currently free. If paid extras are added later, they'll be clearly shown in the app and on the App Store.
Do I need an account?
No. You can start right away.
What does Weekfuel read from Apple Health?
Only your steps – and only with your permission. You enter your weight yourself.
How does the AI photo work?
Take a photo of your food; an AI recognizes the ingredients and estimates calories and macros. You can adjust everything. More on AI photo tracking.
How does Weekfuel calculate my BMR?
With the Mifflin-St Jeor equation, using age, sex, height and weight. Try it in the BMR calculator.
Are there widgets?
Yes, Weekfuel offers Home Screen widgets. See widgets & styles.
About data & privacy
Where is my data stored?
Locally on your iPhone. Photos are sent to an AI service for analysis. Full details in the app privacy policy.
How do I delete my data?
Use “Reset data” in the app or delete the app.
Does this website use cookies?
No. No cookies and no tracking. Details in the website privacy policy.