I am using a Iphone 7+ with the new IOS 11.4 beta version.
Whenever i start the manga rock app it tries to load the screen but then blacks out and crashes.
Because i am using the new IOS 11 beta version i am able to record this and have uploaded it on to youtube (unlisted).
This is Ly Huynh from Not A Basement Studio. Thanks for reaching out.
Our app cannot run on iOS 11Beta.
We will release the new version of Manga Rock when Apple launches iOS 11
Sorry for any inconvenience caused!