Luci - Hack your dreams by Sam Ruston - $1.99 -> free

Luci is your intelligent dream journal and lucid dreaming helper.

Lucid dreaming is when you become aware that you're in a dream; this awareness allows you to take control over your dreams, whether that be to make yourself fly, time travel or become a movie star! If you can imagine it, you can do it. The possibilities are limitless. It has a sleek and intuitive interface to help you record your dreams & progress. Luci comes with tools and a guide to help you on your journey.