Home › Comparisons › NutriOptio vs Cal AI
Cal AI estimates calories and macros from a photo of your meal, using the phone's depth sensor to judge portion volume. NutriOptio logs by photo, voice, barcode or text and grades each food's quality as well as its calories.
| NutriOptio | Cal AI | |
|---|---|---|
| What it is built for | Grading meals for your goal: logs what you eat and scores its quality, not only its calories | Fast calorie counting from a photo |
| Food quality score | Nutri-Score (A to E) on every food, plus a daily wellness score weighted to your goal | Not listed on their site |
| Glycemic index and glycemic load | Yes, glycemic index and glycemic load on every food | Not listed on their site |
| NOVA processing level | Yes, NOVA group 1 to 4 on every food | Not listed on their site |
| Meal and calorie tracking | Yes: calories, macros and a daily score | Yes: calories, protein, carbs and fat |
| Photo meal logging | Yes, Essential plan and above | Yes, its core feature, with depth-sensor portion estimates |
| Voice logging | Yes, free | Not listed on their site; text descriptions are supported |
| Barcode scanning | Yes, free on the website and in the app | Yes |
| Works in a web browser | Yes, free web app plus iPhone and Android | Not listed on their site; App Store and Google Play |
| Advertising | None | Not stated on its homepage |
| Also covers | Allergen checks, GLP-1 reduced-appetite mode, Apple Health and Health Connect activity | Apple Health and Google Fit, custom foods and recipes |
Cal AI column: from www.calai.app, checked October 2026. “Not listed on their site” means we did not find it there; the app may still offer it. Prices are left out for both apps because they change by region and promotion: check the App Store or Google Play.
Choose Cal AI if speed is everything and a photo-to-calories estimate is all you need.
Choose NutriOptio if you also want to know what the meal does: glycemic load, processing level and a grade for your goal, and you want a free web app you can use without an account.
Cal AI estimates calories and macros from a photo of your meal, using the phone's depth sensor to judge portion volume. NutriOptio logs by photo, voice, barcode or text and grades each food's quality as well as its calories.
Cal AI is the better fit if speed is everything and a photo-to-calories estimate is all you need.
NutriOptio is the better fit if you also want to know what the meal does: glycemic load, processing level and a grade for your goal, and you want a free web app you can use without an account.
Yes, there is a free tier on iPhone, Android and the web, and on the website you can scan a barcode or search any food without an account. In the app, voice logging and barcode scanning are free. Photo logging and the AI coach are part of the paid plans.
Search any food, or scan a barcode, for its glycemic load, Nutri-Score and NOVA group — free in your browser, no account needed.
Open the free web appCal AI is a trademark of its owner. NutriOptio is not affiliated with or endorsed by Cal AI. If anything here about Cal AI is out of date, email contact@nutrioptio.com and we will correct it.