Artista is an app for drawing and photo editing. It lets you create original drawings either freehand or using shapes such as lines, ovals, and rectangles. You can import photos from the photo gallery, perform filtering, mirroring, conversion to grayscale and sepia, color inversion, apply several photographic filters, do cropping and simple rotation, and do pixellation, sharpen and blurring. You can select, cut, copy, and paste. Images can be up to 16 megapixels on newer iOS devices, and about 3 megapixels on the iPad 1 and older iPhones.
Added Gaussian blur filter.
Added sharpen filter.
Added photo effects: fade, process & noir.
Added color posterize filter.
Added selection of primary color pens at bottom of screen.
Fixed a crashing bug.
iPyramid 
iRAW 
iSystem 