Spying on someone by tracking his phone activities becomes a necessity for monitoring and clarifying suspicion. The traditional way of spying on an Android phone is by installing a monitoring app on that target phone. However, it is not easy to get access to someone's phone easily. Besides, there is always a chance of the target person catching you red-handed installing the app.Moreover, the target person can find out the app on his phone and trackback to you from the account details. Therefore, most people are looking for ways to spy on someone's phone without installing any app. But it is possible to spy on a cell phone without installing any app physically. However, there could be limitations to parameters that you can monitor.If we are talking about spying on an Android smartphone or tablet remotely without installing any app, you will need to know the Google Account's credentials of the target person. If you want to spy on iPhone or iPad without installing any app, you will need to know the iCloud credential of the target person.but if you ever need help to guide you through the process or you don't have the information of the targeted person. Cloudgeeksync @ gmail .c om Cloudfoneclone . C om