One of the great apps is J-Novel Club. It offers a wide range of anime - related light novels, with a user - friendly interface that makes reading enjoyable. Another good one is BookWalker. It has a vast library of light novels, often including exclusive titles. And there's also Crunchyroll Manga, which not only has manga but also some great light novels for anime fans to explore.
Well, legal manga apps usually have partnerships with publishers and follow copyright laws. However, there are a lot of shady apps out there that violate these laws and are definitely illegal.
In most cases, they aren't bad. But some poorly developed manga apps might have issues like battery drain, compatibility problems, or security vulnerabilities. So, it's important to choose well-known and reviewed apps.