application web developer

Hello i was wondering how much time and budget would it take to make a simple 4/5 pages - text content app static with ads implementation (facebook And admob)
something like https://play.google.com/store/apps/details?id=com.exceed.lineage2revolutionguide (with some different design so that the code could b unique

Google Play (https://play.google.com/store/apps/details?id=com.exceed.lineage2revolutionguide)
Guide for Lineage 2 Revolution (Unofficial Guide) - Apps on Google Play
This is not an Official Game of Lineage 2 Revolution, Just a Guide made by fan