GusviTerms of use
Last updated: November 13, 2026
These terms cover your use of Gusvi on iPhone and iPad. By using the app you accept them. They are short on purpose — please read them, especially the part about medical advice.
What Gusvi is
Gusvi compares the information on a food label with the lists you set for each person: allergens, "may contain" traces, lactose, vegetarian or vegan, and the things they keep an eye on. The label information comes from Open Food Facts when you scan or type a barcode, or from the text read on your phone when you photograph an ingredient list. Gusvi gives no health scores, doesn't track nutrition and doesn't recommend products. It is not a medical device.
Not medical advice — the package always wins
Gusvi is a reading aid, not a doctor, dietitian or allergist. Fits only means that nothing on that person's list was found in the data Gusvi had; it never means a food is safe. Check and Can't tell mean you need to look closer. For allergies and intolerances, always read the package itself before buying, serving or eating, and follow the advice of your health professional. In an emergency, call your local emergency number.
Data can be missing or out of date
Product data comes from a shared database written by volunteers around the world. It can be incomplete, wrong or older than the package in your hand — recipes change and labels differ from country to country. Text read from a photo can be misread, especially with glare, folds or small print. Gusvi says when it doesn't know, but it can't catch every gap. When the package and Gusvi disagree, the package is right.
Your responsibilities
Keep each person's list accurate and up to date, and add only people whose lists you may manage, such as yourself or your family. Read the package and make your own decisions about what you buy and eat; an adult should check food for children. Use Gusvi lawfully and only for its purpose. Don't try to break, copy, resell, reverse engineer or overload the app or the services it uses, except where the law allows it.
Free and Gusvi Pro
The free version includes unlimited barcode checks (within the lookup pace below), one person, a few photo reads a day (currently 3), a history of the 30 newest checks, and ads. Gusvi Pro adds up to 6 people checked together, unlimited photo reads, watch words, a history of 2,000 checks with search, and no ads. The paywall shows what Pro includes and its current price before you buy. If Pro ends, extra people stay saved but only the first one is checked.
Auto-renewing subscriptions
Gusvi Pro is an auto-renewing subscription sold through Apple. Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically for the same period and price unless auto-renew is turned off at least 24 hours before the end of the current period; the renewal is charged within the 24 hours before that end. Manage or cancel it in the iPhone's Settings app (your name > Subscriptions) or in the App Store. If a free trial is offered, any unused part of it is forfeited when you buy a subscription. Deleting the app doesn't cancel the subscription. Refunds are handled by Apple under its own rules. Restore purchases in Gusvi's Settings brings Pro back on a new or reset device.
Fair use
Open Food Facts is free and asks every app to go easy on its servers. Gusvi keeps to 12 barcode lookups a minute; after that it asks you to wait a few seconds. Saved products don't count. Please don't use scripts, automation or modified versions of the app to look up products in bulk or to get around this pace, the daily photo reads or Gusvi Pro.
Open Food Facts content
Product information shown in Gusvi comes from Open Food Facts and its contributors. The database is available under the Open Database License (ODbL), its individual contents under the Database Contents License (DbCL), and product photos under Creative Commons Attribution-ShareAlike (CC BY-SA). Gusvi credits Open Food Facts with a link on every product it shows and lists these licenses in Sources and licenses. Brand names and packaging that appear in product photos belong to their owners. Gusvi is independent: it isn't run, sponsored or endorsed by Open Food Facts. Corrections go to Open Food Facts itself, through the link on each product.
Apple's standard license
Gusvi is licensed to you under Apple's standard Licensed Application End User License Agreement (EULA), and these terms add to it. Where the two disagree, Apple's EULA applies. Apple is not responsible for Gusvi or its support — questions come to us. Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them.
No warranty
Gusvi is provided "as is" and "as available". To the extent the law allows, we make no promise that it will be accurate, complete, uninterrupted or free of errors, that a product will be found, or that a photo will be read correctly. The services Gusvi relies on — Open Food Facts, Apple, Google and RevenueCat — may change or stop without notice.
Liability
To the extent the law allows, we aren't liable for indirect or consequential loss, or for harm that follows a decision about food made with Gusvi, including an allergic reaction. Our total liability for any claim is limited to what you paid for Gusvi Pro in the 12 months before it. Nothing in these terms takes away rights you have under the consumer laws of your country.
Changes and contact
We may update these terms as Gusvi changes; the date at the top shows the latest version, and using the app after an update means you accept it. Questions about these terms: support@gusvi.app.