Do I need a BB or CC cream? Recommendations please?

[Archedbrowse]

Hi, I'm looking for either BB & CC cream to wear day to day, and would be grateful for recommendations. It's to wear on days when I'm not wearing foundation (ie non-working days when I'm just going to playgroup and doing errands). I just want to be able to put it in like moisturiser, the point being its for days when I won't be 'putting my make up on'.
I've got ok-ish skin, not great, not terrible, some large pores around nose and greasy forehead. I'm not that sure of the difference between a BB & a CC cream.

Have a budget of £15, finances still revovering from being on SMP.

Bourjois have a v good cc cream.

Its light coverage but good at evening out skin tone.

I use the the maybelline Dream Fresh BB cream it is ok and only about £8. But I am always looking for good recommendations as well.

La Roche bb cream. It's factor 50 so no worries about getting burnt.
https://www.amazon.co.uk/gp/aw/d/B00TBIBL8M/ref=mpsa12ait/254-6937726-7987937?ie=UTF8&qid=1469910457&sr=8-2&keywords=la+roche+posay+bb+cream&pi=SX200_QL40

Thanks I'll look at all of them.

I have used the rimmell BB cream in the past but just seemed to be a tinted moisturiser, couldn't see anything different about it?!