Targets that
learn from you.

Log what you eat and weigh in. DietCoach works out how much energy you really burn and adjusts your calories and macros every week — and shows you the math.

iPhone Free with ads Same account as Kaha Trainer English · Português · Español
DietCoach on iPhone

Why another diet app

A calorie number from a formula is a guess.

Calculators start from your height, weight and age, multiply by an activity level you picked from a list, and never look back. Three things go wrong.

🎯

The starting number is off

Two people with the same body can burn hundreds of calories apart. A formula can't tell them apart; a few weeks of your own data can.

📉

Your body changes, the target doesn't

As you lose or gain weight, what you burn changes too. A target set on day one quietly stops matching your goal.

⚖️

Daily weight is noisy

Water and salt move the scale by a kilo overnight. Reacting to every weigh-in means changing the plan for the wrong reasons.

How it works

Your first 30 days.

Log your meals and weight every day

Food log, barcodes, recipes, or a photo of the plate. A weigh-in in the morning.

Your expenditure starts updating

With 3 days of food and a weigh-in, the estimate starts learning from you instead of from a formula.

Every week, a check-in

DietCoach proposes new calorie and macro targets and explains what changed and why.

A plan fitted to you

In about a month of consistent logging, your targets match your body and your goal.

DietCoach: your first 30 days

Features

Logging that takes seconds, targets that make sense.

🍽️

A food log by the hour

Build a plate and log it in one go. Brazilian TACO food table, your own foods, favorites and recents.

📷

Barcodes and labels

Scan a barcode to find the product. Not found? Photograph the nutrition label and a new food is filled in for you to check.

✨

Log a meal with AI

Take a photo or describe the meal. The AI lists ingredients and grams; nutrition always comes from the food database, and you review before logging.

📖

Your recipes

Build recipes from scratch or import them from a link, a photo or pasted text — with per-serving nutrition and every vitamin and mineral on record.

🔥

Adaptive expenditure

Your energy expenditure is recalculated from intake and weight trend. When there isn't enough data, it holds instead of guessing — and says so.

🗓️

Goals, programs and check-ins

Lose, maintain or gain at a pace set as a percentage of your body weight. Pick a diet style, protein level and higher-calorie days.

Progress

See the trend, not the noise.

The scale jumps; your trend weight doesn't. DietCoach smooths your weigh-ins and puts every number — intake, expenditure, weight, habits — on one dashboard.

  • Trend weight. A moving average that shows where your weight is really going.
  • Energy balance. What you ate against what you burned, day by day.
  • Habits. Weigh-in and logging streaks, with a monthly and yearly calendar.
  • Every nutrient. Calories, protein, fat, carbs and fiber against your targets, with your top foods.
  • Steps from Apple Health. Read on your iPhone, never used for ads.
  • Reminders. A nudge to log your meals and to weigh in, at the times you choose.

Plans

Free to use. Pay only for what you want.

Everything that makes DietCoach work — food log, targets, expenditure, check-ins, progress — is free, supported by ads.

Free

The full app with ads, plus 3 AI analyses to try it out.

No Ads

The full app without ads. Monthly or yearly.

AI

No ads, plus 15 meal analyses and 15 label reads with AI every day. Monthly or yearly.

Prices are shown in the app in your local currency. Subscriptions renew automatically and can be cancelled anytime in your Apple ID settings.

Privacy

Your food log is yours.

What you eat and weigh can be sensitive. Here is exactly how DietCoach treats it.

AI only with your permission

Photos and text go to the AI (Claude, by Anthropic) only when you use it and after you allow it. We don't keep the photos, and your name, email and health data are never sent.

Never used for ads

Your food log, body data and Apple Health data are used to run the app for you — never for advertising. Usage stats sit under a random identifier, not your account.

Delete it in the app

Profile → Delete Account erases everything immediately. No email, no waiting.

Full detail in the Privacy Policy and Your Privacy Choices.

FAQ

Questions worth asking first

Is it free?

Yes. The food log, targets, adaptive expenditure, check-ins and progress are free, with ads. Paid plans remove the ads and add daily AI analyses.

Do I need a Kaha Trainer account?

You need one account, and it's the same in both apps. If you already use Kaha Trainer, sign in with it and your profile, weight and measurements are already there. If not, create it in DietCoach.

Where do the nutrition values come from?

From food databases — the Brazilian TACO table, Open Food Facts for barcodes, and the foods and recipes you create. The AI never invents nutrition values: it names ingredients and amounts, and each one is looked up in the database.

How is my energy expenditure calculated?

It starts from a standard formula and then learns from your data: average intake over the last weeks minus the change in your weight trend. It only updates when the last 7 days have at least 3 days of food logged and a weigh-in.

Is this medical advice?

No. DietCoach gives educational information based on what you enter. Talk to a health professional before big changes to your diet, especially if you are pregnant, have a medical condition or a history of eating disorders.

Which languages does it speak?

English, Portuguese (Brazil) and Spanish — the whole interface. It follows your iPhone's language by default, and you can change it in the app.

Almost there

DietCoach is coming to the App Store.

Drop us a line and we'll tell you the day it goes live.

Email us at info@kahatrainer.com