I have been using this app for years. It's a wonderful app and is easy to use, however, there is severe lack of variety in brushes, crashing problems, AND they have added ads after every. single. save. which becomes a huge problem when you close the app mid ad and it turns out it didn't save your progress because the ad had not finished (this has happened to me on MULTIPLE occasions) I am honestly very close to switching apps at this point because its become less and less worth it.