it incorporates Memrise techniques, such as spaced repetition, multiple test modes, and adaptation to your progress
There are 1,000 cat photos in the initial release, some of which were licensed from cat meme website I Can Has Cheezburger. Other photos were created by a community at Memrise's request. Memrise set up a Tumblr and asked cat owners to take photographs of their cats in scenarios, positions or environments that they felt best reflected a particular word of phrase. Users that repeatedly had photos accepted for the programme were paid for their effort.
The six-person team working on CatAcademy at Memrise over the last seven months designed the app