I use an app called Ovu View. :-) its really good, you can record pretty.much everything. And so easy to use!
That is the one I use, I think its really good. I only have the free one at the moment but considering the paid one

I use temps and OPKs. I try to track CM, but I'm a bit hit and miss with it.

I chart everything on Fertility Friend (website and phone app). They have a free charting course; if you haven't already done it, it's a great place to start.
Thanks Juniper, will look at the course online