---
title: FAQ: Weekly Calorie Tracking with Weekfuel
url: https://weekfuel.app/en/faq/
lang: en
updated: 2026-11-02
---

# Frequently asked questions

Short, honest answers. Missing yours? Reach out via [support](https://weekfuel.app/en/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](https://weekfuel.app/en/guide/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](https://weekfuel.app/en/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](https://weekfuel.app/en/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](https://weekfuel.app/en/bmr-calculator/).

### Are there widgets?

Yes, Weekfuel offers Home Screen widgets. See [widgets & styles](https://weekfuel.app/en/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](https://weekfuel.app/en/app-privacy/).

### 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](https://weekfuel.app/en/privacy/).

## Your week at a glance – automatically.

Weekfuel recalculates your weekly budget every day: meals by photo, steps from Apple Health, a trend instead of daily scale drama.

[Download on the App Store]({{APP_STORE_URL}})