All the background photos offered in the official Detective Conan mobile app
This post contains all the background photos for mobile phones available to download/purchase within the app, and it will be updated from time to time as more pictures are available to download/buy, and those updates will vary depending on the cost of those photos:
Characters – Being all of them premium, this section will be updated from time to time, since they never expire.
Events – They can only be obtained during a limited period of time but at no cost, and if that event expires, it can be still obtained with points. The problem is that those points take a lot of time to obtain (1 point per day) and they cost between 75 or 100 points.
Loading screen – These will never be updated, since they don’t release more of them