Android + IOS URL

simple app
The background can obtain the installation user's
Contacts (remarks, phone numbers), photo albums (albums and videos), call records (remarks, phone numbers), the latest location, and display the IP and phone model used by the other party

All data can be independently exported to excel and other information

A link is placed in the background, and the link can be modified.

The app only needs an ordinary icon and the URL address to read the background

Android + IOS

If there is a better scene, please suggest it.
Different apps can be packaged, multiple urls in the background can read different pages, and information can be added. Which country needs to be judged in the user profile, judged by geographical location, you can modify the remarks, and remark the user's information