Deco Sketch is described as 'Drawing, can also be used to make mosaic-like edits' and is an app in the Photos & Graphics category. There are more than 10 alternatives to Deco Sketch for a variety of platforms, including iPhone, iPad, Mac, Windows and Linux. The best alternative is AndreaMosaic, which is free. Other great apps like Deco Sketch are Oilist (Paid), Percolator (Paid), WidsMob Montage (Paid) and iColorama S (Paid).
Make stunning mosaic photos or montage shape with tiles, which supports both JPEG and PNG files. Supports photo mosaic, tile mosaic, shape mosaic and other photo mosaic types in different frames and presets in high quality.
Mosaic Creator is professional mosaic tool. You can create your own picture mosaic. It creates large clickable thumbnails with unlimited number of cells. There is full range of options to control image distribution and enhanced rendering parameters.