What changed on October 13, 2026: this policy now also covers the iOS (iPhone) version of CardStitch, including how it uses Apple’s Vision framework, the Photos app and the Files app. We also added sections on the diagnostics log and Google Play in-app updates. The previous version was effective September 24, 2026.
CardStitch is an app for Android and iOS developed and maintained by Tomislav Hofman. This policy explains what CardStitch accesses and what happens to that information.
The Short Version
CardStitch is designed to work locally on your device. It has no CardStitch account, developer-operated server, analytics, advertising system, or cloud gallery. CardStitch does not collect your data or send it to Tomislav Hofman, and we do not sell your data.
Information CardStitch Uses
Camera and card images
CardStitch asks for camera access because capturing card images is its core function. The camera is used only to photograph your cards while you are using the camera screen. Captured images are processed on the device to detect card edges, crop the cards, stitch the front and back together, and recognize text for a filename.
Where the resulting images are saved depends on your device:
- Android: in the device’s shared Pictures/CardStitch folder, using Android MediaStore.
- iOS: in CardStitch’s own folder in the Files app (On My iPhone › CardStitch). A copy of each stitched image is also saved to your photo library in the Photos app.
CardStitch does not upload the captured images or recognized text to a CardStitch server.
Card detection and text recognition
Card detection uses LiteRT machine learning models that are bundled with the app and run on the device, on both Android and iOS.
On Android, CardStitch uses Google’s bundled ML Kit text recognition library for on-device OCR. The card image input and OCR result are processed on the device. The ML Kit Android SDK may collect limited device, app, performance, and usage information for its own diagnostics and analytics, as described in Google’s ML Kit data disclosure. CardStitch does not receive or control that SDK diagnostic data.
On iOS, CardStitch uses Apple’s Vision framework, which is part of iOS, to recognize text on the device. The iOS app includes no third-party analytics or advertising SDKs.
Photos access (iOS)
On iOS, CardStitch asks only for permission to add photos to your photo library, so it can save a copy of each stitched card image there. This add-only permission does not let CardStitch see, read, or change any other photos, and CardStitch does not create albums. If you do not allow it, your cards are still saved in CardStitch’s folder in the Files app.
Local settings
CardStitch stores settings on the device, such as onboarding status, haptic feedback, gallery layout, and filename preferences. These settings are not sent to Tomislav Hofman. On Android, they may be included in your device’s own backup if you have Android backup turned on.
Diagnostics log
To help troubleshoot problems, CardStitch keeps a short technical log on the device, for example processing times, errors, and the card names and filenames it recognized. You can view and clear this log in the app’s settings. It stays on your device and is never sent automatically. It only leaves the device if you tap Share log and choose where to send it, for example to email it to us when reporting a problem.
Sharing
When you choose Share, Android or iOS passes the selected image to the app you choose. That transfer is started by you and is controlled by the receiving app’s privacy policy and terms.
App updates (Android)
When CardStitch is installed from Google Play, it uses Google Play’s in-app update feature to check whether a newer version is available and, if there is one, to install it. That check is handled by Google Play on your device under Google’s terms. CardStitch does not send information to Tomislav Hofman as part of it.
Storage, Retention, and Deletion
Android: card images remain in the device’s Pictures/CardStitch folder until you delete them in CardStitch or with an Android file or gallery app. Deleting a card in CardStitch removes the image files that CardStitch knows about. Uninstalling CardStitch may not remove images that were saved to shared Android storage. You can delete those images using the device’s gallery or file manager.
iOS: card images remain in CardStitch’s folder in the Files app until you delete them in CardStitch or in the Files app. Deleting a card in CardStitch removes its files from that folder, but not the copy saved to your photo library. That copy is yours to keep or delete in the Photos app, and it also stays there if you delete the app.
You are responsible for copies you export or share to other apps.
Permissions
On Android, CardStitch requests camera access for capture. On older Android versions it may also request storage access so it can save the images to the shared Pictures folder.
On iOS, CardStitch requests camera access for capture and add-only Photos access to save a copy of each stitched image to your photo library, as described above.
CardStitch does not request location, contacts, microphone, or account permissions.
Children
CardStitch does not knowingly collect personal information from children. It does not provide accounts, messaging, advertising, or social features.
Changes and Contact
This policy may be updated when CardStitch’s data practices change. The current version will be published on this page, with a short note on what changed.
Questions about this policy can be sent to tomislav@hofman.tech.
See also the Terms of Use.