Privacy policy

Last updated: 12 November 2026

Who is responsible

Pairr is made by Léon van der Linden (lrvdlinden.app), the Netherlands. Questions about privacy can be asked via the support page.

What data Pairr uses

Only what you enter yourself: devices, codes, rooms, notes, attachments and your settings. That data is never sent to the developer.

Storage and iCloud

• Codes, QR codes and attachments are encrypted with AES-GCM (256-bit) before they are stored.
• The key is stored in the iCloud Keychain of your Apple Account. The Apple Watch receives it directly from your iPhone.
• With iCloud turned on, Pairr syncs through the private iCloud database (CloudKit) of your Apple Account. The developer has no access to it.
• Automatic backups go to your own iCloud Drive (Pairr folder), encrypted with the same key.
• A copied code stays only on the device where you copied it and is removed from the clipboard after 60 seconds.

Looking up device details

To fill in brand, model and logo, Pairr sometimes connects to the internet:

• the public Matter database of the Connectivity Standards Alliance (on.dcl.csa-iot.org), with only the vendor and product ID from a Matter code;
• the brand's website, to fetch its icon (logo).

Your setup codes themselves are never sent. As with any internet connection those parties can see your IP address; Pairr sends nothing else.

Permissions

• Camera: to scan codes. Images are not stored unless you add a photo as an attachment yourself.
• Photos: only the photo you pick, to read a code from it or keep it as an attachment.
• NFC: to read a code from an NFC tag (iPhone).
• Home (HomeKit): read-only, to import your accessories with room, brand and model. Pairr changes nothing in your home.
• Face ID / Touch ID: is handled by iOS and macOS; Pairr only learns whether it succeeded.

What Pairr doesn't do

No account, no tracking, no analytics, no third-party crash reporting, no ads and no selling or sharing of data. Asking for a rating uses Apple's standard prompt.

Apple only shares anonymised, aggregated App Store download figures with developers. These can't be traced back to you.

Deleting your data

In Pairr you can erase everything under Settings → Data, including from iCloud. You can also remove Pairr's data via Settings → [your name] → iCloud → Manage Storage on your iPhone.

This website

pairr.lrvdlinden.app uses no tracking cookies and no analytics. Only when you pick a language yourself is that choice remembered in your browser (cookie pairr_lang). Fonts are served from this site, not from Google.

Changes

If this policy changes, the new version will appear here with a new date.