I would concur with Godfrey on most of these. I"d suggest looking at Noteshelf also. It really has the smoothest handwriting of any of similar apps and I use it and Notability a bit differently. I'd add Filterstorm to the photo apps--its PS like with layers if you like and a lot more. Phraseology is another to consider with Simplenote. To be truthful I try to use apps that are integrated or sync with Dropbox. For almost two years I've used Office2 HD for my office suite and I still like it but after repeated requests to the developer for syncing to Dropbox (it is integrated but doesn't automatically sync) and it not happening I bought Quickoffice which works very well.
There are many more apps, easy utility ones and more complex with specific uses. Ask as you find a need and I bet someone here will have some advice.
There are many more apps, easy utility ones and more complex with specific uses. Ask as you find a need and I bet someone here will have some advice.