AndreaMosaic - With AndreaMosaic you can create your own photographic mosaics made with your own pictures.

Hyperspektiv - Psychedelic glitch fx

Mosaic Creator - Mosaic Creator is professional mosaic tool. You can create your own picture mosaic.

Looker - Looker makes it easy for analysts to create and curate custom data experiences—so everyone in the business can explore the data that matters to them, in the context that makes it truly meaningful.

WidsMob Montage - Make stunning mosaic photos or montage shape with tiles, which supports both JPEG and PNG files.

Trigraphy - Photo editing app that allows you to make mosaic/abstract looking art.