The iPhone world is full with useful little applications - everyone calls them Apps for short. Every iPhone user has they'e own personal favourite apps, I like free apps the best so most of the below will cost you nothing.
Genius - If you suffer from bad camera shake then this is the app for you. I think it slows down the speed of the shutter action to much - I've usually lost my shot of my blonde blur by the time this app has taken the photo.
Photosynth - You want one of those 360 panoramic view pictures that you can zoom into, zoom around and see the whole picture? Then this app is the one for you! A lovely tap screen to take the shot and beautiful zoom features afterwards. It's my go to app for those shots of the u-ni-k gifts stall!
Camera Flash - Probably the first app I downloaded and the one I don't use. I thought that since the iPhone didn't have one then artificially adding light to the photo would be useful. I was wrong, it adjusts the exposure only - you lose detail and the colour adjusts strangely.
PS Express - This is a little mini photoshop! The app lets you make basic adjustments to the photo but all the really cool stuff is a purchase add on.
Snapseed - OK not a free app unless you downloaded it in the 12 Days of Christmas iTunes store like I did. However this is worth the £2.99 or whatever. The best application I've found for adjusting photos, it's the first place I go to improve a photo that I love. In fact I love it so much I'm going to dedicate a whole blog post to Snapseed in the very near future.
Once you are happy with your photos then you have several ways of presenting them
Frame magic - This allows you to place two or more photos in frames. Again some of the more conservative frame types have to be purchased but you can edit the photos a little, crop and enhance etc. You can change the frame width and type... so if you have three pictures of your little one that you want to display together in a professional layout then this is your app!
Facebook - A little more than a photo sharing application but for us first time parents the main reason for joining Facebook was the ease of sharing photos of our little ones with friends and family. Every Granny I know only uses Facebook for seeing photos of their grandchildren.
So there are my top photo apps on the iPhone. I don't have many and I've stumbled upon them over the past few years or so (I'm not a big apps downloader as I only bought an iPhone at the end of my pregnancy - it's amazing how much time I've not had to browse through apps!).
Please share your favourites with me just in case I've missed some fab ones!