Hello and welcome to my corner of the internet.
I didn't like trying to post from iPad either
The ipad app is much easier. There is an actual Blogger one. As for the iphone, I have found that BlogGo works - although I think it couldn't cope with a lot of photos in one post...so it will be single pics from that in future :-)
I've never tried this.
It's all a learning curve Christine, lol :-)
Good luck with it. I have an iPad mini and leaving comments is a challenge with it's spellchecker function! I have the Blogger app but wouldn't try and post photos with it.