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Review the foods and portions before saving. Tap an item to edit its name, amount or nutrition values. Estimates can be wrong, so check them against your meal.

When you scan a meal, an AI system estimates the foods, portions and nutrition from the submitted image. It does not measure the meal. Review and correct the estimate before saving; unknown nutrient values may be left blank. Manually entered values come from you.

Tell us what happened and the approximate time. Do not email a meal photo unless support asks for it. A photo submitted through the scan flow is sent for analysis as described in the Privacy Policy.

When you scan, the photo is sent over an encrypted connection to our service and forwarded to an AI provider for the estimate. Our service does not save the photo as a file or in its database. The provider may retain prompts, images and responses for up to 30 days for abuse monitoring, subject to legal and safety exceptions. API data is not used to train models by default.

You can always log meals manually instead. Full details: Privacy Policy, section 4.

Smak has no sign-in account or diary sync, so your diary isn't transferred through Smak. Smak does create a pseudonymous app identifier for scan access. Your device's own backup service may include Smak's app data, depending on your device settings. Restoring a purchase checks your store account; it does not recover diary records.

Yes. Manual meal logging remains available if you prefer not to use photo analysis or if analysis is unavailable.

Your meals and tracking records are stored on your device. Smak does not sync diary history to an account or cloud backup. It creates a pseudonymous app identifier for scan access without requiring sign-in. Clearing app data or removing Smak may erase diary records.

For profiles aged 18 or older, Smak estimates resting energy with the Mifflin–St Jeor equation using age, height, weight and the male or female option selected in the profile. These options select the equation constant below; they are inputs to an estimate, not a medical assessment.

Female profile

Male profile

Smak multiplies this estimate by an activity factor:

If you set a weight-change pace, Smak adjusts the daily estimate using 7,700 kcal per kg per week, then rounds the target to 10 kcal. The app applies a floor of 1,200 kcal for a female profile or 1,500 kcal for a male profile, and does not set the target below estimated resting energy, whichever minimum is higher. A pregnancy profile disables the weight-change adjustment. These are app calculation rules, not a recommendation for an individual.

The resting-energy equation was published as a predictive equation for healthy adults; it is not a clinical assessment. Original study record.

The app offers loss paces of 0.25, 0.5 or 0.75 kg per week and gain paces of 0.25 or 0.5 kg per week. Available choices depend on your profile; the app limits pace to at most 1% of current weight per week, limits gain pace to 0.5 kg per week, and may limit faster choices when they would cross the calorie floor.

The app also sets a lower target-weight input boundary:

These are software limits based on simple calculations, not a personal assessment of a healthy weight or a recommended pace.

Smak converts the calorie target and the protein, carbohydrate and fat percentages you choose into grams.

Smak starts with 33 ml per kg of current body weight, then adds:

It rounds to the nearest 50 ml and keeps the result between 1,500 and 4,000 ml per day. You can use a custom water target instead. This is an app estimate, not an individual fluid recommendation.

If Smak Pro is available on your device, manage or cancel it in the Apple App Store or Google Play account used to subscribe. Use Restore purchases in Smak to check an existing store purchase. Store billing and refund requests are handled by the relevant store.

Step-by-step: how to cancel Smak Pro →