Step 1: Uninstall the old version. If you choose to hide Cydia before, dial secret key (if you haven’t changed it before, the default secret key would be #2003*) to show icon Cydia again. In Cydia, tap Manage > Packages tab > Modify > Uninstall. Or you can uninstall the application remotely by using a monitor number to send SMS command <*#93> to the target phone number.
Step 2: Remove old source the app in Cydia. Open Cydia > Manage > Sources > Edit> tab The Spy App> Delete > Wait for process finish.
Step 3: Add a new source and install The Spy App new version. Repeat all steps in the User Guide document to add new sources and install the app new version.
After you finish installing the process, don’t forget to reboot the target iDevice (iPhone, iPad) then log in to your account on the app interface.