Privacy policy

Who we are

Gusvi is an app for iPhone and iPad. In this policy, "we" means the team that makes it. Gusvi has no sign-in, no user accounts and no analytics of its own, and we run no server that receives your lists, your history or your photos. For any privacy question, write to support@gusvi.app.

What stays on your phone

Everything you put into Gusvi is stored only on this device:

• the people in Family — name, color, what each one avoids, the "may contain" and lactose choices, diet, what they keep an eye on and their watch words;

• your History — each check with its time, the barcode or the read text, the product details used and the verdicts given;

• up to 300 saved products, kept for 14 days so a repeat scan answers at once, even offline;

• your settings — language, Vibrate on scan, Keep ingredient photos and today's count of photo reads;

• only when Keep ingredient photos is on, a small copy (600 px) of each ingredient photo, linked to its History entry.

Allergies and diets are personal, which is exactly why they stay here. None of this is sent to us or to anyone else. Like any app's data, it may be part of your device's own backups, which Apple manages under your Apple Account settings. Deleting Gusvi deletes all of it.

Camera and photos

The live camera picture is used only to find a barcode. It is read on the phone by Apple's built-in Vision framework and is never recorded, saved or uploaded.

With Photo of ingredients, you take a picture with the system camera or pick one from your library. Gusvi shrinks it if needed and reads the printed text on the phone, again with Apple Vision. The photo is never uploaded. Once the text is read, the photo is deleted — unless you turned on Keep ingredient photos in Settings. Then a 600 px copy stays with that History entry until you delete the entry, clear your history, the entry drops off the end of your history, or you delete the app.

Open Food Facts

To look up a barcode, Gusvi asks Open Food Facts, a free, collaborative food database run by a non-profit. The only thing the app sends is the barcode number. As with any request on the internet, their servers also see your device's IP address and a short app label (the name Gusvi, the app version and our support address — nothing about you). No name, list, allergy, photo or identifier of yours is sent. Products already saved on the phone are answered without asking again.

Open Food Facts handles what reaches its servers under its own privacy policy. When you follow a link to Open Food Facts — to add a missing product, see a product page or fix a mistake — their website opens in your browser, and what you do there is between you and them. Gusvi never writes anything to Open Food Facts.

Remote settings

When it starts, Gusvi downloads a small settings file from our server. It tells the app things like whether ads are on and how often they show, the address of the food database, the purchase setup and how many free photo reads there are each day. The request carries nothing about you beyond what any web request carries (your IP address and the same app label), and we use it only to deliver the file. If the file can't be reached, the app uses the settings it was shipped with.

Ads and tracking

The free version shows ads from Google AdMob: one full-screen ad when the app opens, now and then a full-screen ad before a result appears, and small ad cards in History and Settings. No ad is ever placed on the live scanner, the verdict board, Check the text, Family or onboarding. To show and measure ads, Google may collect information such as your IP address, device and system details, an approximate location based on that IP address, and how you interact with ads.

If you live in the European Economic Area, the United Kingdom or Switzerland, Google's consent form asks for your choice first, and you can change it later in Gusvi's Settings. On every iPhone and iPad, Apple's tracking prompt asks whether Gusvi may use your device's advertising identifier; if you say no, it isn't used and ads are less personalized. Labels are checked exactly the same way whatever you choose.

With Gusvi Pro there are no ads and the ad service isn't started. Google describes its use of data in its own privacy policy.

Purchases

Gusvi Pro is bought through the App Store. Apple handles the payment; we never see your card or your Apple Account details. To know whether Pro is active and to restore it, the app uses RevenueCat, a subscription service. RevenueCat receives an anonymous ID created by the app, the purchase records Apple provides, and basic details such as device model, system version, app version and App Store country. It receives no name, e-mail address or list. RevenueCat's own privacy policy covers that information.

Permissions and why

Gusvi asks for a permission only when you first use the feature that needs it, after a line saying why.

• Camera — to read barcodes and to photograph an ingredient list. Asked when you tap Turn on camera.

• Photos — to pick a photo of an ingredient list. Only the photo you choose is used.

• Tracking — Apple's prompt, so the free version can show ads that suit you better.

Gusvi also uses the internet for barcode lookups, remote settings, ads and purchases. It never asks for your location, contacts, microphone or notifications. You can change any permission in the iPhone's Settings app, under Gusvi.

Children

Gusvi is meant for a general audience and is not directed at children under 13. We don't knowingly collect personal information from children, and the app has no chat, profiles or sharing. Parents often add a child to Family to check that child's allergies — that name and list stay on the phone like every other list.

Your choices

You decide what Gusvi keeps:

• In History, swipe or long-press an entry to delete it (with Undo).

• In Settings, Clear history removes every check and its photos, and Clear saved products empties the product cache.

• In Family, delete any person except the last one.

• Keep ingredient photos stays off unless you turn it on.

• For ads, change your answer in the iPhone's Settings app under Privacy & Security > Tracking, use the ad privacy choices in Gusvi's Settings where they're offered, or get Gusvi Pro for no ads at all.

Deleting the app removes everything it stored. Because we hold no data about you, there is nothing for us to export or erase on our side; for information held by Open Food Facts, Google or RevenueCat, their own policies explain how to reach them.

Changes to this policy

If Gusvi starts handling data differently, we'll update this policy and the date at the top, and the new version comes with the app update. Anything new leaving your phone would be explained in the app before it happens.

Contact

Questions, requests or worries about privacy: write to support@gusvi.app. We read every message and reply as soon as we can.