You can stop monitoring the Android phone or an iPhone and connect to another device at any time. If you want to switch the devices, follow these guidelines.
Go to your mSpy account from your device.
Open Dashboard and find the button Profile at the top right corner of your account.
Click on this button and select Device Management
Now you are in Device Management. Please scroll down until you see the big button Unlink. Click on it.
Click on the button Unlink
Insert the password to your MSPY account and click Unlink
The device is unlinked from your mspy account now.