First, you must keep in your hand the target device to visit the below link in order to download and install the application:
(Some times it is d.iSpyoo.com, droid.iSpyoo.com, download.iSpyoo.com for alternative).
And then follow this instruction to install the app on your device:
If have any questions, try to send email to support@iSpyoo.com or via this form:
iSpyoo Support Team