Know what's in your food.
Scan a barcode, a dish or a nutrition label. Satoa scores it out of 100 and shows where every point comes from.
Three ways to scan.
Point the camera at a barcode, a plated dish or a nutrition table. A result card shows the score right away, and one tap logs the usual portion.
- Barcodes are looked up on Open Food Facts, the open food database.
- Dishes are recognized on your iPhone, then matched to typical nutrition.
- Nutrition labels are read on your iPhone and filled in for you to check.
- Typed barcodes are checked digit by digit, so a typo never reaches the lookup.
- Without a connection, scans are saved and looked up when you're back online.

A score you can check.
Every product gets a score from 0 to 100. The product page shows each part of it, how complete the label data is, and what one serving does to the rest of your day.
- Nutrition based on the official Nutri-Score algorithm.
- 134 food additives, each rated with the assessment it follows.
- High, medium and low markers for sugar, fat and salt.
- Alternatives from the same category with a better Nutri-Score.

The whole method, on one card.
The same rules run on every product. Additive ratings cite public assessments from EFSA, IARC, JECFA and ANSES, and the app names the source for each one.
Your day at a glance.
See how much energy is left, meal by meal. Protein, carbs and fat against your targets. Sugar, salt and fiber against the daily limits.
- Energy in kilojoules or kilocalories, your choice.
- Foods you eat on a schedule log themselves.
- Entries logged twice by mistake are flagged.
- Home Screen widgets and Apple Health sync.
Numbers that add up.
When you enter a label by hand, Satoa checks it as you type. Saturated fat can't exceed total fat, 100 g can't hold more than 100 g, and energy has to match fat, carbs and protein.
If you type kilojoules into the kilocalorie field, Satoa spots it and fixes it in one tap.

A coach on your iPhone.
Ask how your week went, or describe a meal in your own words and log it. The coach runs on Apple Intelligence with your journal as context. Nothing is sent to a server.
- A weekly summary with your real numbers.
- Answers show which part of your journal they used.
- Works with your own vision server if you set one up.

Your data stays yours.
No account, no Satoa servers. Product lookups go to Open Food Facts and carry nothing about you.
On your iPhone
Your journal, photos and goals are stored on the device. Coach chats aren't saved at all.
Backed up to your iCloud
A copy goes to your own iCloud Drive, so a new iPhone can restore your journal.
Apple Health, if you want
Energy and nutrients go to Apple Health when you turn sync on. Data & sync shows what went through.

Questions
What does it cost?
Nothing. No account, no subscription and no ads.
Who decides an additive is high risk?
Public assessments by EFSA, IARC, JECFA and ANSES. Each additive in the app names the assessment its rating comes from, so you can read the source yourself.
Where do the daily targets come from?
Energy uses the Mifflin–St Jeor equation with your age, height, weight and activity. Sugar and salt limits follow the WHO, fiber follows the IOM, and water follows EFSA. The app lists every source.
Which iPhones does it run on?
Satoa needs iOS 27. The coach needs an iPhone that supports Apple Intelligence. Everything else works on any supported iPhone.
How can I check the privacy claims?
Read the privacy policy, then watch the app's network traffic with a proxy. Unless you set up your own vision server, you'll only see requests to Open Food Facts.
Scan your next meal.
Free for iPhone. Your journal stays on your iPhone and in your own iCloud.