Quillmark – Sign & Initial: Privacy Policy

Last updated: 21 October 2026

Quillmark is published by InfiV Labs ("we"). It lets you sign, initial and stamp documents, and it runs

entirely on your device.

What we collect

• Nothing that identifies you. There is no account, no sign-in and no server of our own.
• Your documents, signatures, initials, stamp and printed name are stored only in the app's private storage on

your device. We never upload them. Delete them by deleting documents in the app or uninstalling it.

• Device backup: if Android backup is turned on for your Google account, Android may include the app's data

in your own encrypted device backup, so your documents come back on a new phone. That backup belongs to your

Google account; we cannot see it. You can turn it off in your phone's backup settings.

• Signed copies leave your device only when you share them yourself, through your phone's share sheet.

Camera and photos

• The camera is used only when you choose "Scan paper"; photos are read only when you pick them (gallery photos,

a photo of your signature or stamp). Images are processed on the device and kept only inside the app.

Third-party services

• RevenueCat processes in-app purchases and restores, using an anonymous app user id and the store's purchase

records. See revenuecat.com/privacy.

• Apple App Store / Google Play handle payments under their own privacy policies.
• Google AdMob shows ads in the free version only (an occasional full-screen ad after you share a signed copy, and an optional ad you choose to watch for one more free document). AdMob may use

your device's advertising ID and approximate location to show and measure ads. In the EEA and UK you are asked

for consent first and can change it any time under Settings → Ad privacy choices. Premium removes all ads.

See policies.google.com/technologies/ads. Your documents and signatures are never shared with AdMob.

• Google Firebase Analytics and Crashlytics count how the app is used (for example that a document was signed

or shared, with page and mark counts, never the content) and send crash reports with device details, using

an app-instance id and an approximate location from your IP address. This data is used only to improve the app,

never for ads. It is collected without a separate consent prompt and contains no document content. See

firebase.google.com/support/privacy.

• Your documents, signatures and names are never sent to any of these services; we never sell your data.

Notifications

• If you start a free trial, Quillmark schedules one reminder on your device a day before the trial renews. It is a

local notification; nothing is sent to a server.

Children

Quillmark is not directed at children under 13 and does not knowingly collect their data.

Deleting your data

Everything personal is on your device: delete it in the app or uninstall the app. To delete the purchase,

analytics and crash records held by RevenueCat and Firebase for your install, email infivlabs@gmail.com with

the subject "Quillmark data deletion"; we act on it within 30 days.

Contact

InfiV Labs · infivlabs@gmail.com