Check How to Choose the Right Spy App for your Android Devices are as follows -
1. Always use the stock Android phones for usage.
2. Know if requires a root or jailbreaking feature.
3. Must have knowledge of the required features and specifications.
4. Try their free plans then use the premium ones.
5. Must check the reviews and claims before using.
Read More - https://allsavvy.net/best-spy-apps-for-android