[riams]

>> I tried to use Titanium Backup PRO but it didn't work for removing or freezing them.

Worked for me. What happens if you launch them after attempting to freeze?

>> Screenshot to take screenshots

You don't need an app for this. Hold menu + power button.

[avar]

It just refused to work (i.e. clicking on "freeze" with those apps returned an error), and since it's a paid application I only had 15 minutes to try it out if I wanted a refund.

[antimora]

On samsung it is hold back button + click home button.