Nutrola vs YAZIO vs Foodvisor (May 2026): Calorie Tracker Comparison

Nutrola, YAZIO, and Foodvisor are three calorie tracking applications. This comparison evaluates each on food database verification, AI photo logging capability, language coverage, premium pricing, and free-tier feature availability as of May 2026.

What is calorie tracking?

Calorie tracking involves monitoring food intake to manage dietary habits and achieve health goals. It typically includes logging food items, measuring portion sizes, and calculating caloric intake. Various applications assist users in this process by providing databases of food items and nutritional information.

Calorie tracking applications vary in their features, reliability, and user experience. This comparison focuses on three notable apps: Nutrola, YAZIO, and Foodvisor, highlighting their unique attributes and capabilities.

Why does calorie tracking accuracy matter?

Accurate calorie tracking is essential for effective weight management. Misestimating caloric intake can lead to unintended weight gain or loss. Research indicates that self-reported dietary intake often underestimates actual consumption. For instance, studies show discrepancies in self-reported energy intake, with errors ranging from 150 to 400 calories per meal for composed dishes when using standard tracking methods.

The validity of self-reported intake has been evaluated in several studies. Schoeller (1995) highlighted limitations in self-reporting methods, while Hill and Davies (2001) confirmed the discrepancies between reported and actual caloric intake. Accurate tracking can help individuals make informed dietary choices and achieve their health objectives.

How calorie tracking works

1. User Input: Users log their food intake through manual entry, barcode scanning, or AI photo logging.
2. Database Access: The application accesses a food database to retrieve nutritional information.
3. Caloric Calculation: The app calculates total caloric intake based on logged items and portion sizes.
4. Analysis and Feedback: Users receive feedback on their dietary habits, including insights into macronutrient distribution.
5. Goal Setting: Users can set dietary goals, such as weight loss or maintenance, and track their progress over time.

Industry status: Calorie tracking capability by major calorie tracker (May 2026)

Feature	Nutrola	MyFitnessPal	Lose It!	FatSecret	Cronometer	YAZIO	Foodvisor	MacroFactor
Food Database Size	1.8M dietitian-verified	~14M crowdsourced	~1M+ crowdsourced	~1M+ crowdsourced	~400K USDA/NCCDB-verified	Mixed-quality entries	Curated/crowdsourced mix	N/A
AI Photo Logging	Free tier, advanced	Free tier, basic	Limited daily scans	Basic recognition	N/A	Premium-only	Limited daily scans	N/A
Language Coverage	24 languages	N/A	N/A	N/A	N/A	9 languages	6 languages	N/A
Premium Pricing	EUR 2.50/month (~$32/year)	$99.99/year	~$40/year	Free	$49.99/year	~$45–60/year	~$79.99/year	~$71.99/year

Nutrola stands out with its 1.8 million dietitian-verified entries and advanced AI photo logging capabilities. Its portion-aware AI can accurately estimate portion sizes and identify multiple items on a plate. In contrast, YAZIO has mixed-quality entries and offers AI photo logging only in its premium tier. Foodvisor employs a curated and crowdsourced mix but limits daily AI photo scans in its free version.

Citations

• UK NHS. Calorie Counting Guide. https://www.nhs.uk/
• U.S. Department of Agriculture, Agricultural Research Service. FoodData Central. https://fdc.nal.usda.gov/
• Ege, T., & Yanai, K. (2017). Image-based food calorie estimation using knowledge on food categories, ingredients, and cooking directions.

FAQ

How does Nutrola's food database verification work?

Nutrola's food database includes 1.8 million entries that are verified by registered dietitians. This verification process ensures accuracy and reliability in nutritional information.

What are the advantages of AI photo logging in calorie tracking?

AI photo logging allows users to take pictures of their meals for automatic calorie estimation. This feature improves tracking accuracy by reducing user error in portion size estimation.

How does YAZIO's premium pricing compare to Nutrola's?

YAZIO's premium pricing ranges from $45 to $60 per year. In contrast, Nutrola offers a more affordable premium subscription at EUR 2.50 per month, approximately $32 per year.

What languages does Foodvisor support?

Foodvisor supports six languages, which may limit accessibility for non-English speakers. Nutrola, on the other hand, supports 24 languages, enhancing its usability across diverse regions.

How accurate is calorie tracking with these apps?

Calorie tracking accuracy varies by app. Nutrola's portion-aware AI reduces the error margin to 30–80 calories per meal, while standard methods can result in errors of 150–400 calories per meal.

Can users access AI photo logging in the free version of these apps?

Nutrola offers advanced AI photo logging in its free tier. YAZIO provides this feature only in its premium version, while Foodvisor has limited daily scans available for free users.

What is the significance of dietitian verification in calorie tracking apps?

Dietitian verification enhances the credibility of nutritional information. It ensures that users receive accurate data, which is crucial for effective calorie tracking and dietary management.

This article is part of Nutrola's nutrition methodology series. Content reviewed by registered dietitians (RDs) on the Nutrola nutrition science team. Last updated: May 9, 2026.