Recommended Iphone/Ipad Apps for retouching?

[ShogunSho]

I've just been having my iphone not for long. Realized there are several decent stuff that really aid with retouching as well as photography.

I know several people said they have these cool applications that retouchers/photographers must have that really is essential and come in handy if anyone owns iphone or Ipad.

Could anyone recommend something like an application that could be tutorials, the retouch program, Portfolios etc. Maybe even some recommend reading or videos?

[plugsnpixels]

Start with a search in the iTunes Store, as well as Google.