AndreaMosaic - With AndreaMosaic you can create your own photographic mosaics made with your own pictures.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
WidsMob Montage - Make stunning mosaic photos or montage shape with tiles, which supports both JPEG and PNG files.
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.