I am using iDungeon Pro, but can stil legit this if needed, so this does not belong in the cheating section. How long should I play for a month, botting and legit to achieve 99 Dungeoneering in 30 days?
As there is a 0% chance of ban with iDungeonPro (thus far, it seems) you would be best off botting 24/7 and legiting the highest few floors (5:% Larges of course) you can. You'll get it within 30 days easily.