Below are some instructions on the use of user data in the "PTree" APP. 

1."PTree" is an offline diary app, the current version does not consider collecting any user data. 

2.The contents released by the user during the use of the APP are stored in the storage space of the user's mobile phone and iCloud. Except for Apple's own cloud backup function, the user's data will not be transmitted in any form. 

3.At the same time, APP does not have any code to record user usage habits data, and will not collect any data about user usage habits and records. 

4. As can be seen from the above, the user’s privacy during the use of "PTree" is completely safe