Question

Mine is a domestic situation - a computer and an ipad on the same wifi modem. Can I monitor activity on both devices? A simple keystroke logger on the computer would be OK but for the ipad.

Answer 1

To monitor the activity, a keylogger is suitable.

-For your home computer, the Master Keystroke Logger piece of software should fulfill your needs.
-For your Ipad, you'll need to use another app, for example: http://ikeymonitor.com/
Keep in mind that a keylogger on the Ipad always require your device to be jailbroken.