Which Ad blocker do you prefer?

[chitminthu]

I've check almost all ad blocker in App Store.
And I found that Crystal & Purify stand in Top Chart.
Which do u prefer more in these two ad blockers.

 

[Reparkable]

Do ad blockers only work in safari, or do they block ads in other apps too?

 

[chitminthu]

They block only on safari