Yuka is a legitimate app with over 80 million users worldwide and a database of 6 million products. It generates revenue entirely from its user base, not from the brands it rates, which is the single most important factor in whether a product-rating app can be trusted. That said, “legit” and “perfectly accurate” aren’t the same thing, and there are some limitations worth understanding before you rely on it for every grocery decision.
How Yuka Makes Money
The most common concern with any product-rating app is whether brands can pay to boost their scores. Yuka’s funding model is fully transparent and designed to prevent that. In 2024, the company earned $7.17 million from premium subscriptions, $137,893 from book and calendar sales, and $58,043 from services. Zero dollars came from food or cosmetic manufacturers.
The app carries no ads. Brands cannot pay Yuka to advertise products, influence scores, or gain preferred placement. The premium subscription (which adds features like offline scanning, a search bar, and alerts for ingredients like gluten, palm oil, or lactose) is what keeps the lights on. This is a genuinely independent funding structure, and it’s rare among apps in this space.
How the Scoring System Works
Yuka rates food products on a 100-point scale using three factors: nutritional quality (60% of the score), the presence of additives (30%), and whether the product is organic (10%). The nutritional quality portion is based on the Nutri-Score system, a letter-grade rating developed by European public health researchers that weighs calories, sugar, salt, saturated fat, fiber, protein, and fruit or vegetable content.
One thing to know: Yuka currently uses the original Nutri-Score algorithm, not the updated version that was revised in 2024. The newer algorithm changed how certain foods are categorized, particularly fatty fish, red meat, and sweetened drinks. During this transition period, some scores may not reflect the latest nutritional science. This isn’t a dealbreaker, but it means certain products could be rated slightly differently than they would under the newer standard.
For cosmetics, Yuka evaluates each ingredient against databases of toxicology research and flags potential concerns like endocrine disruptors, allergens, or irritants. Each ingredient gets a risk level, and the overall product score reflects the combined assessment.
Where Yuka Is Genuinely Useful
The app is best at doing something most people don’t have the time or expertise to do themselves: quickly flagging problematic additives and comparing similar products. If you’re standing in a grocery aisle choosing between two pasta sauces, Yuka can surface differences in sugar content or additive profiles that you’d otherwise miss. It scans barcodes in seconds and presents information visually, which makes it practical in a way that reading nutrition labels often isn’t.
Its database covers 4 million food products and 2 million cosmetic products, so most mainstream items in the U.S. and Europe will return a result. When a product isn’t in the database, users can contribute it, which is how the catalog has grown so large.
Where Yuka Falls Short
The biggest criticism from nutritionists is that Yuka’s scoring system doesn’t account for context. A product gets a single score regardless of who’s eating it, how much they’re eating, or what else is in their diet. Olive oil, for instance, can score poorly because of its fat content, even though it’s widely considered a healthy fat. Cheese, nuts, and dark chocolate can all get dinged by a system that penalizes calories and saturated fat without considering the broader nutritional picture.
The 10% organic bonus is another point of contention. A product being certified organic doesn’t necessarily make it healthier. An organic cookie with high sugar content will get a small score boost over its conventional equivalent, which can be misleading. The additive scoring can also be overly cautious, flagging ingredients where the actual risk at normal consumption levels is debatable among toxicologists.
There’s also the issue of user-contributed data. Because some product entries come from the community rather than verified manufacturer databases, occasional errors in nutritional information can slip through. A mistyped sugar value or an incorrect ingredient list will produce an inaccurate score, and there’s no easy way for you to know when that’s happened.
How to Use It Wisely
Yuka works best as a comparison tool, not as a final verdict on whether a food is “good” or “bad.” If you’re choosing between two yogurts and one scores 75 while the other scores 30, the difference is likely meaningful and driven by real gaps in sugar or additive content. But a single score in isolation doesn’t tell you whether a food belongs in your diet.
Use it to catch things you wouldn’t otherwise notice: unexpected additives in products marketed as “natural,” high sodium in foods that don’t taste salty, or cosmetic ingredients with documented safety concerns. Treat low scores on whole foods like nuts, cheese, or eggs with skepticism, since the algorithm isn’t built to handle nutrient-dense foods that happen to be high in fat or calories. And if a score surprises you in either direction, tap into the detailed breakdown rather than just reading the number. The ingredient-level information is often more valuable than the overall rating.