Your personal food assistant, in a chat
Tell it what you ate by text, a photo of your plate or your voice. Dieta.chat estimates calories and macros, you check them and save to your diary, and you see how much is left for today. Ask questions on the spot, with your goal, allergies and restrictions in mind.
3 days free on every plan. After that, $19.99 per month on the monthly plan or $99.99 per year on the annual plan. Cancel anytime.

This was my lunch. Is there room for a fruit for dessert?
12:32I see rice, beans, grilled chicken and salad. A fruit fits in your goal for today.
- White rice 150 g195 kcal
- Beans 100 g77 kcal
- Grilled chicken 120 g198 kcal
- Salad 80 g15 kcal
Illustrative example
Counting calories is hard work
Many diet apps ask you to search, pick and measure every single item. For someone who just wants to eat better, that becomes a burden.
Manual search
Looking up every food in huge databases and comparing results takes time.
Picking a brand
Choosing the brand, variation and cooking method among dozens of similar options.
Setting portions
Estimating grams, spoons and cups for each item on the plate.
Constant typing
Repeating the process at every meal, every day. It wears you out, and many people quit halfway.

One photo instead of four searches
In Dieta.chat you just talk: write, photograph your plate or record a voice message. The assistant spots rice, beans, chicken and salad, estimates the portions and adds up the calories. You check, fix what you like and save to your diary.
Illustrative photo and values. AI estimates may vary.How Dieta.chat works
Three steps. No logging food by food and no manual search: you chat, check and follow your progress.
Tell us about you
Create your account and answer the first questionnaire: goal, weight, height, activity level, allergies and restrictions. The app calculates your daily calorie and macro goal, and the assistant answers with you in mind.
Chat and log
Tell it what you ate or ask anything: write, send a photo of your plate or record a voice message. The assistant builds the entry, with calories from the food table whenever possible. You check it, fix what you like and save it to your diary.
Follow your day and your week
See how much is left for today, follow the weekly menu in the Plan tab or tap "What should I eat now?" for a suggestion. Follow your weight-loss plan on the weight chart, log water with one tap and set reminders. Every week, the AI sums up your entries in a short text.
A day with Dieta.chat
From a photographed lunch to a planned dinner: the diary adds everything up, shows what is left and the assistant suggests what fits.
- Protein73 of 120 g
- Carbs124 of 195 g
- Fat19 of 60 g
- Breakfast310 kcal
- Lunch485 kcal
- Snack180 kcal
What should I eat now, with what is left to close my day?
825 kcal left: 47 g of protein, 71 g of carbs and 41 g of fat.
For dinner: a 2-egg omelette with white cheese and vegetables, 1 slice of whole-grain bread and a salad with 1 spoon of olive oil. That is around 430 kcal and still leaves room for a fruit.
- Target weight
- 68 kg
- Pace
- 0.5 kg per week
- Daily goal
- 1,800 kcal
- Expected date
- January 15, 2027
- Status
- On track
Give me a light chicken recipe for dinner.
- 33 gProtein
- 18 gCarbs
- 13 gFat
Illustrative screens with made-up data. AI estimates may vary.
The AI chats. The math follows clear rules
Artificial intelligence understands what you say and what shows up in the photo. Your goal, the pace of the plan and the safety limits come from recognized formulas, and you check everything before saving.
Computer vision
It analyzes the photo of your plate and identifies the foods in it. Calories come from the USDA table when the food is in it; the portion is always an estimate.
Voice messages
Record a voice message telling what you ate or what you want to know. The voice is transcribed and the assistant answers as if it were text.
Answers based on your profile
Every answer considers your profile (goal, activity, allergies, restrictions and health) and what the assistant remembers about your tastes and routine.
Numbers calculated by the app
The daily goal, the pace of the plan and the expected date come from recognized formulas, with a calorie floor and a weekly loss limit. The AI chats, but it does not make these numbers up.
What the app does for you
From logging a meal to the weekly summary, in a single app. Everything on this list already works.

Log it your way
Write, send a photo of your plate or record a voice message. The assistant identifies the foods and portions, and calories come from a food table whenever it finds the item. You check, fix and save.

Diary with a daily goal
Your daily calorie and macro goal is calculated from your profile, and the diary shows how much is left after each meal. If you prefer, set your own goal. Under More nutrients, also see fiber, sodium, vitamins and minerals.

Weight-loss plan
Pick your target weight and a safe pace, from 0.25 to 0.75 kg per week. The app calculates the goal and the expected date, and the chart shows whether you are on the way.

Weekly menu
Seven days of meals built around your goal, allergies and tastes, with the shopping list ready. Did not like a dish? Swap it in one tap. And ask for recipes in the chat whenever you want.

Weight, water and weekly summary
A weight chart with BMI, water with a daily goal and, every Monday, a summary of the week written by the AI from your entries.

Goals and achievements
A streak of days with entries, short weekly goals and achievements to celebrate. One free day per week does not break the streak, and nothing rewards eating less.

It remembers you
Goal, measurements, allergies and restrictions live in your profile. Tastes, routine and budget are learned by the assistant in the chat, and you can see and delete them in Settings.

Ask in the chat
Say "I drank two glasses of water" or "remind me to weigh in on Monday" and the chat prepares the entry, the reminder or the new goal. You confirm with one tap.

Your data is yours
The conversation is kept so you can pick up where you left off. Export a copy of your data or delete your account whenever you want, right in the app.

Free calculators
On the site, calculators and tests with no sign-up: BMI, BMR, TDEE, calorie deficit, water, sleep and more.
See the toolsWhat is your health worth?
Just $0.27 a day on the annual plan: $99.99 per 12 months. Every plan has 3 days free to try. Subscribe in the app, through Google Play or the App Store, or here on the website.
Monthly plan
Billed every month
That is $0.67 per day
3 days free to try
6-month plan
Billed at once, equal to $11.67 per month
That is $0.39 per day
Paying monthly for 6 months: $119.94
3 days free to try
Annual plan
Billed at once, equal to $8.33 per month
That is $0.27 per day
Paying monthly for 12 months: $239.88
3 days free to try
Every plan includes
- Chat with the AI food assistant
- Plate photo analysis and voice messages
- Guidance based on your profile: goal, weight, allergies and restrictions
- Memory of your tastes and routine, which you can see and edit
- Calories from the USDA food table whenever the item is in it
- Entries, reminders and goals through the chat, with one tap to confirm
- Food diary with a daily calorie and macro goal
- Weight-loss plan with a safe pace and expected date
- Weekly menu with a shopping list
- Recipes with calories and macros per serving, and next-meal suggestions
- Meal, water and weigh-in reminders
- Weight history with a chart and BMI
- Water log with a daily goal
- Weekly summary written by the AI
- Export or delete your data whenever you want
Subscribe in the app, through Google Play or the App Store, or here on the website, by card or PIX (PIX only in Brazil). The first 3 days are free in the stores and by card; to avoid being charged, cancel before the trial ends. Renewal is automatic until you cancel: in the app, in the Google Play or iPhone subscription settings; on the website, in My subscription. Amounts are in US dollars. The final price is the one shown before you pay, on Google Play, on the App Store or on the website.
Got any questions?
The most common answers about plans, subscription, using the app and privacy.
How does the free trial work?
Every plan starts with 3 days free on Google Play, the App Store and by card on the website (on the website, once per account; PIX has no trial). If you cancel before the trial ends, you are not charged. If you continue, the plan you chose starts when the 3 days are over.
How much does it cost?
The monthly plan costs $19.99 per month. The 6-month plan costs $69.99 every 6 months ($11.67 per month) and the annual plan $99.99 every 12 months ($8.33 per month). Amounts are in US dollars, and the store shows the final price in your country before you buy.
How do I subscribe?
Download Dieta.chat on Google Play or the App Store, create your account and choose your plan: billing is handled by the store. If you prefer, subscribe on the website with the same account, by card or, in Brazil, with PIX. The same account works on Android, iPhone and the website.
How do I cancel my subscription?
On Google Play, in Payments and subscriptions, Subscriptions; on iPhone, in Settings, your name, Subscriptions; on the website, in My subscription. You keep access until the end of the period you already paid for, and uninstalling the app does not cancel the subscription. On the website, you can withdraw within 7 days and get back everything you paid.
How is it different from an ordinary AI chat?
In Dieta.chat the conversation is tied to your profile, diary, weight, water and plan. The assistant knows your tastes and routine and, right in the chat, logs meals and water, creates reminders and adjusts your goal, always with a card for you to confirm.
How do I log what I ate?
Just tell the chat or send a photo of your plate. The assistant builds the entry with the items, portions, calories and macros, and you check it and save it to your diary with one tap. If you prefer, you can also add a meal by hand.
Where do the calories and macros come from?
From the USDA FoodData Central table, from the United States Department of Agriculture, with almost 7,000 foods; branded products and ready meals are estimated by the assistant, and each item shows where the number comes from. The daily goal, the pace of the plan and the expected date come from recognized formulas, calculated by the app. The table also gives fiber, sodium, vitamins and minerals, under More nutrients in the diary.
Does the app build a weekly menu?
Yes. In the Plan tab, the app builds seven days of meals from your goal, allergies, restrictions and tastes, with the shopping list split by supermarket section. You swap a meal you did not like, log it in the diary with one tap or save it as a recipe.
Does the assistant remember what I tell it?
Yes. It keeps what matters to personalize suggestions, such as your tastes, routine and budget. In Settings, What the assistant knows about you, you can see, fix and delete each item.
What data do you collect and how do I delete it?
We collect your account data, what you enter in your profile and diary, and the conversations, photos and voice messages you send, as explained in the Privacy Policy. In Settings, you can export a copy of your data or delete your account, and you can also request deletion on the Delete account page.
Start taking care of your eating today
Download the app, answer the first questionnaire and chat with the assistant. Every plan starts with 3 days free.