What LongStitch collects
LongStitch does not collect or upload your screenshots, image contents, account details, advertising identifiers or usage analytics. There is no sign-in, advertising SDK or developer-operated image processing server.
On-device storage
The app reads screenshots you allow, caches source images, and saves stitching results and presentation state in its private local storage. Cached app files are excluded from device backup. Removing the app removes its local files; images saved to Photos remain in Photos.
Photo permissions
Read access is used to discover screenshot groups and load selected originals. Add access is used to save your finished image. Deleting originals only occurs after your action and the system confirmation. With limited access, the app can use only the items you allow.
Apple services
Photos may download originals from your own iCloud Photos library according to your system settings. Apple may independently process App Store, TestFlight and system diagnostic information under its own policies. LongStitch does not receive screenshot contents through these services.
Support email
If you email support, your email and any information you choose to send are used to respond to that request. Do not send private images unless you intend to share them. Contact yongboxia@icloud.com to request deletion of support correspondence.
Contact and updates
Developer: 夏勇波 (Yongbo Xia). Contact: yongboxia@icloud.com. Effective date: October 18, 2026. Changes to app data practices will be reflected on this page.