Old School Monsters PRO (com.blank.osmonsterspro) on Google Play
Old School Monsters is a collection of 2500 monsters for rpg retroclones like Osric, Castles&Crusades, Swords&Wizardry, Labyrinth Lord, Dungeon Crawl Classics, and the original edition using the OGL license. You can filter and order them, or just mark as favorites. A very intuitive app for your favorite tabletop rpg. Enjoy putting goblins, orcs, dragons or whatever you want in your dungeons, cities or wilderness of your worlds.