Your Integrated course gives you exactly the same licence as a modular course and the requirements to keep it valid are the same:
Class 1 - renewal every year
IR - licence proficiency check every year this needs to be completed whilst the IR is still valid otherwise further training is required. 1.5 hours usually in a DA42 these days.
This is the bare minimum and It’s not cheap. This doesn’t include renewing your SEP which is extra and done every two years. This would be needed if you plan to do an FI course.
Like many have said: there’s no point in paying schools thousands more than you have to arrive at the same point. Integrated is a poor choice these days.