The game itself has no logic to the mechanics. Its literally just Swype the boxes in any direction in any order. If you dont solve it the first time, replay then swipe in another direction in a different order. To top it all off, the app runs ads after every level. Theres not even any option to remove them (even a "pay to remove apps" option is unavailable) and you have to manually mute the VERY loud ads every time. Stay away from this app.
Gauze321 about FLOU - puzzle game