Privacy Policy

How Walt handles your data.

Last updated: May 2026

Walt is published by Embedded Engineering ApS, a company registered in Denmark. This policy describes how the Walt Android app handles your data.


What the current release does

The current release of Walt is a passes wallet. You can import digital passes (boarding passes, event tickets, loyalty cards, and similar .pkpass files) into the app, view their details, and display their barcodes. Passes are imported through Android's share sheet or by opening a .pkpass file from another app.

All passes you import are stored in Walt's private app-sandbox storage on your device. Walt does not transmit pass data, pass barcodes, or pass contents off your device. There is no Walt account, no server-side database of your passes, and no telemetry that records what passes you hold or how you use them.


Push notifications

Walt uses Firebase Cloud Messaging (FCM) to deliver push notifications. When the app starts, Google issues a device-specific FCM registration token to the Walt app. This token is required for Google to route push messages to your device and is handled by Google as part of FCM. Walt does not associate this token with any identity, name, email, or pass content.


Payments

Tap-to-pay and bank-card features are a planned future capability and are not active in the current release. Any payment functionality is pending regulatory and compliance review and is disabled in the shipping app. When and if these features are introduced, this policy will be updated to describe how card and transaction data are handled before the functionality is enabled for users.


Data Deletion

Walt stores all pass data locally on your device. There is no server-side account to delete and no central database holding your passes.

To delete your Walt data:

  1. Open Android Settings on your phone.
  2. Tap Apps and find Walt in the list.
  3. Tap Storage and cache, then Clear storage. This deletes all imported passes, pass barcodes, pass details, and app preferences immediately.

Or, to remove Walt entirely:

  1. Long-press the Walt app icon and tap Uninstall.
  2. Confirm. Android removes the app and all of its data.

What gets deleted: every pass you imported, all pass barcodes and details, app preferences, and the device's Firebase Cloud Messaging registration token.

What Walt retains after deletion: nothing. Walt does not transmit pass data off your device, so there is no copy on any server to retain.

Questions: contact privacy@walt.is.