What are some alternatives?
When comparing Readitt and Penana, you can also consider the following products
Wattpad - Wattpad is now the worlds most popular ebook community where readers and writers discover, share...
Commaful - Largest multimedia fiction site in the world. A lot of short stories, poetry, and fanfiction.
Storybird - Visual storytelling community
Bhooks - A unique e-books platform & feedback community, with many helpful tools.
Fanfiction.net - The most popular fan fiction website in the world according to Wikipedia
My Storybook - Make children's storybooks online for free.