Attributions and licences

Third-party data sources, fonts and software · Version 2026-09-02

Yedeni uses third-party data, fonts and software. Below we name the sources and their licence terms — partly because the licence explicitly requires it, partly because we think it is right.

Food and nutrition data

Open Food Facts

Product and nutrition data for barcodes comes predominantly from the Open Food Facts database, a non-profit project run by volunteers.

Data: licensed under the Open Database License (ODbL) v1.0. Source: openfoodfacts.org
Product images: licensed under Creative Commons Attribution-ShareAlike 3.0 (CC BY-SA 3.0). The images were contributed by Open Food Facts contributors.
Individual contents of individual records may be under the Database Contents License (DbCL) v1.0.

We have imported the data into our own database to make it faster and available offline, and we fill in missing nutrition values with figures we compute ourselves. That makes our copy a derivative database within the meaning of section 4.4 of the ODbL; it is likewise available under the ODbL.

In accordance with section 4.6 of the ODbL, we disclose how those computed values are produced. Both methods only ever fill fields that Open Food Facts does not supply — we never alter a value that came from Open Food Facts:

Estimated fibre. Where a product has no fibre value, we insert a figure typical for its category, derived from the product name, the brand and the Open Food Facts category tags. Foods that physically contain virtually no fibre (water, oil, plain meat, fish, dairy, eggs, sugar, salt) are set to 0 g; a fat content of 80 g or more per 100 g always counts as a pure fat or oil. Where no category matches, the field stays empty — we do not invent a number.
Copied micronutrients. Where a product has none of the eleven micronutrients, we copy them from a matching entry in a public reference database (USDA FoodData Central, Ciqual or the Swiss food composition database). The match runs on the product's most specific category tag, not on its brand name, and only happens when all four checks pass: trigram similarity between category and ingredient name of at least 0.50 · energy within ±25 % · protein with no gross mismatch · and never copying animal-derived values onto a non-animal product or vice versa.
Quality score. We assign each product an internal figure for the completeness and plausibility of its nutrition values. It is used solely to rank results within our own search, and is neither displayed nor served.

Every value produced this way is flagged as an estimate in our database and shown as an estimate in the app; if Open Food Facts later supplies a real value, it replaces the estimate. We provide a machine-readable file of these computed values, keyed to the respective barcode, free of charge under the ODbL on request — an informal message to hello@yedeni.com is enough.

USDA FoodData Central

Nutrition data for base ingredients comes in part from FoodData Central of the U.S. Department of Agriculture, Agricultural Research Service. As a work of the U.S. federal government this data is in the public domain. Source: fdc.nal.usda.gov. The USDA does not endorse Yedeni and is not affiliated with us.

German Food Code (BLS)

Nutrition data for German foods and dishes comes in part from the German Food Code and Nutrient Data Base: Max Rubner-Institut (2025): Bundeslebensmittelschlüssel (BLS), Version 4.0 — German Nutrient Database. Karlsruhe. DOI: 10.25826/Data20251217-134202-0. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0). The Max Rubner-Institut does not endorse Yedeni and is not affiliated with us.

Ciqual (ANSES)

Nutrition data for further base ingredients comes in part from the French food composition table: Anses (2025): Table de composition nutritionnelle des aliments Ciqual. Licensed under the Open Licence / Licence Ouverte 2.0 (Etalab). Source: ciqual.anses.fr. Anses does not endorse Yedeni and is not affiliated with us.

Swiss Food Composition Database (FSVO)

Nutrition data for Swiss foods comes in part from the Swiss Food Composition Database of the Federal Food Safety and Veterinary Office (FSVO), version 7.1. Source: naehrwertdaten.ch. Use is permitted with attribution. The FSVO does not endorse Yedeni and is not affiliated with us.

FatSecret Platform API

Supplementary food and barcode data is retrieved through the FatSecret Platform API, provided by Secret Industries Pty Ltd. Where this data is displayed it is labelled accordingly in the app. Source: platform.fatsecret.com

Nutrition data from these sources may be incomplete or out of date. We check it for plausibility and refresh it regularly, but cannot give any guarantee. The information on the product packaging always prevails.

Fonts

Public Sans — SIL Open Font License 1.1. Developed by the United States Web Design System community.
Petrona — SIL Open Font License 1.1. Designed by Josep Patau Bellart.

The full licence text is available at scripts.sil.org/OFL.

Icons

Yedeni's icons are our own design. In addition we use Material Design Icons (Pictogrammers), licensed under the Apache License 2.0, and Feather Icons by Cole Bemis, licensed under the MIT License. On iOS we additionally use Apple's SF Symbols.

Software

Yedeni is built on open-source software including React Native, Expo, NestJS, Prisma and many other libraries. The complete, always-current list of packages used with their respective licences is available in the app under "Settings" > "Other" > "Open source licenses". Our thanks to everyone who contributes to them.

User and partner content

Recipes, photos and videos posted by users remain their authors' work. Content taken over from partners is labelled in the app with its source and author and links back to the original post.

Something wrong?

If an attribution is missing, a licence statement is incorrect or a work has been used without permission, please write to support@yedeni.com. We will correct it promptly.