Everything you're wondering.

Accurate enough to decide, no more. A photo can't know invisible fat or sugar, so Volumeal shows a range with a confidence level rather than a fake exact number. Over the week, it's the trend that counts — and an honest estimate keeps you from lying to yourself.

Because “312 kcal” gives false confidence: behind the clean number hides a real margin that other apps leave unsaid. A range is honest about what the photo can actually tell — and a calorie goal isn't decided to within 10 kcal.

Three moves tighten the range: shoot from a good angle, put a scale reference in frame (a bank card), and correct the portion with a swipe. Confidence rises live and you stay in control.

Mostly from what you can't see: cooking oil, sugar, a portion's real density. Volumeal estimates the most likely and expresses the rest as a range — more useful than a falsely precise number.

Yes. Scan a barcode for packaged products, or just say your meal out loud: Volumeal estimates it from your voice. The photo is just one of three ways to log a meal.

Yes. The foods in the dish are identified and portions estimated. For a specific homemade recipe, correct the foods or portion in one tap: the interval recomputes instantly.

No. You can start in anonymous guest mode. Sign in later with Apple or Google if you want to back up and sync across devices — it's optional.

Yes. Your photos are encrypted in transit and at rest, used only to produce the estimate, never sold or used for advertising. You can delete one at any time.

Never. No data resale, no advertising use. You can export or delete everything at any time, right from the app.

Yes, optional and under your control. You choose to sync calories and weight with Health or Fit; nothing is shared without your consent.

Daily tracking: 5 scans a day, the journal, the calorie goal, barcode scan and the confidence range. You can watch an optional ad to unlock an extra scan. No card required.

Unlimited scans, cloud backup of your meals and photos, the scale reference for more precise measurement, and removal of ads — with a 7-day free trial.

€4.99 per month, or €29.99 per year (i.e. €2.50/month, −50%). The free trial lasts 7 days and you're warned before the first charge.

Yes, in one tap, from the App Store or Google Play. No justification, no dark patterns.

iPhone and Android, with home-screen widgets and meal reminders. Apple Health / Google Fit sync keeps your data consistent with your other apps.