Really? Creating an app to upload illegal content and even charging money for it? Yes, translators do invest their own money and time to do this, I know. But no one forces you to do it. Instead of charging money for your app you should encourage people to spend money on the actual raws so the author can profit from it.
Even the cleaning and typesetting are a complete mess.
The first 7 chapters have been updated (only the first 3 are free). Go give it some love if you want ^^
https://www.webtoons.com/en/drama/spirit-fingers/list?title_no=1577