Weekfuel for iPhone

The weekly calorie tracker that gets real life.

Weekfuel gives you a calorie budget for the whole week. Eat more one day, balance it out on the others. Friday pizza, Sunday brunch, a birthday dinner – they all fit, no guilt required.

Download on the App StoreDownload on the App Store

Free for iPhone · no account

Weekfuel week view: Monday to Sunday stacked, each day with meals, calories and a colored status

Why count by the week?

In short

Your body doesn't reset at midnight. Whether you eat 2,600 calories on Friday and 1,400 on Sunday or 2,000 on both days, the week adds up the same. Weekfuel shows exactly that: what matters is whether your week stays on budget.

Most calorie apps give you a daily target. Go over it and everything turns red, even if the other six days were spot on. It feels like failing when nothing really happened. In Weekfuel you simply see how much you have left for the rest of the week.

  1. MonOvernight oats, lentil salad, veggie curry1,780 / 2,000on budget
  2. TueGreek yogurt, turkey sandwich, salmon and potatoes1,920 / 2,000on budget
  3. WedEggs, office lunch, apple2,140 / 2,000close
  4. ThuGranola, burrito bowl, tomato soup1,690 / 2,000on budget
  5. FriBagel, chicken salad, pizza night2,650 / 2,000over
  6. SatBrunch, coffee and cake, BBQ2,380 / 2,000over
  7. SunLight lunch, long walk, soup1,430 / 2,000on budget
Week13,990/ 14,000 kcalon budget
Sample week with a 14,000 kcal weekly budget: two days over, the week still on budget.

Everything you need to lose weight in real life

Weekly budget

Monday to Sunday at a glance, every day with meals, target and status. One big day is fine as long as the week works. About the weekly budget

AI photo logging

Snap your plate. The AI spots each ingredient and estimates calories, protein, fat and carbs. Everything stays editable. How AI photo logging works

Steps count too

Weekfuel reads your steps from Apple Health and turns them into calories, so you see your real deficit. Steps & deficit

Weight trend

No more scale panic. See your trend, goal weight and projected goal date. Weight trend

Macros & streaks

Protein, fat and carbs per day and per week, plus a streak for daily logging and gentle reminders.

Widgets & Matrix style

Your budget on the Home Screen and several display styles – “Matrix” with dot-matrix digits by default. Widgets & styles

A photo instead of typing

Take a picture and the AI splits it into ingredients: pasta, tomato sauce, parmesan, a drizzle of olive oil. Each one gets its own calorie and macro estimate. Something off? Fix it with a tap.

Prefer the classic way? Just search for the food.

AI photo recognition: a plate of pasta broken down into ingredients with calories and macros

Your real deficit, not a guess

A 14,000-step day burns more than a day on the couch. Weekfuel pulls your steps from Apple Health – or you add them yourself – and converts them into calories. That gives you your real deficit or surplus, for the day and for the whole week.

Your BMR is calculated with the Mifflin-St Jeor equation, one of the most reliable prediction formulas in research.

Weekfuel steps view: today's steps, converted calories and the weekly balance

Everything by the week: calories, protein, steps

Weekfuel tracks more than calories. You see your weekly balance, weekly deficit, weekly protein, macros and steps – per day and for the whole week. Want to eat more on the weekend? Eat a little less on weekdays. That's exactly what the app is built for.

Your data stays with you

No account

Start right away. No email, no password, no profile on a server.

On your iPhone

Meals, weight and goals are stored locally on your device. Photos are only sent to an AI service for analysis. App privacy policy

Apple Health, respected

Weekfuel only reads your steps. Health data is never used for ads and never sold.

Run the numbers yourself

Our free calculators run entirely in your browser. Nothing is sent or stored.

Frequently asked questions

What does it mean to track calories by the week?

You log food as usual but judge it over the whole week. Instead of a fixed daily limit you get a weekly budget – say 14,000 calories. Eat more one day and you have a bit less on the others, and vice versa.

Does a weekly budget work as well for weight loss?

Weight change follows your energy balance over time. A weekly budget with the same total deficit leads to the same result on paper as a strict daily target – and many people find it much easier to stick with. See weekly vs daily calorie counting.

Do I need an account?

No. Weekfuel works without signing up. Your data is stored on your iPhone.

How accurate is AI photo logging?

The AI estimates ingredients and portions from the photo. It's fast and usually good enough for everyday tracking, but it is an estimate. You can adjust every ingredient and amount.

How much does Weekfuel cost?

Weekfuel is currently free on the App Store.

Is Weekfuel medical advice?

No. Weekfuel is an everyday tool and doesn't replace medical or dietary advice. If you have a health condition, are pregnant or have a history of eating disorders, please talk to a doctor first.