Privacy policy (last updated on January 24nd, 2022)
PurchaseList will be referenced in the later context as "the app".
The app has the functionality to communicate with a remote server, which the user can choose themselves. The user is supposed to self-host this server in order to retain full control over their data. The app allows users to upload arbitrary data (such as text and images) to such user-controlled server, and also can download and view previously uploaded data, possibly generated by other users who have access to the same server. It's the user's responsibility to protect their server from unauthorized access.
To the best of the developer's knowledge, no personal (or other) information is either collected or sent by the app to the developer or any third party, apart from the parties and purposes specified above.