The two apps I use on my iphone are Camera plus and instagram. I usually shoot using camera plus it allows you to zoom. I use instagram to adjust and post to the various site I use.
Don't get me wrong, I am always looking at new equipment and wish I had this or that but, I have found that reading and working with what I have for equipment I have gotten better images. The most recent read "Visual Flow" Master the Art of Composition by Ian Plant with George Stocking has help my photo style greatly. Many of us think what is wrong with our images is we don't have the correct camera body or lens or filter, but it is all about composition. The plus side of these books that teach about composition is they are inexpensive. My suggestion before you go spend another couple of hundred/thousand dollars on some gadget pick up a book about composition (not just rule of thirds) and get the creative juices flowing.
Here is a site that have some great offerings ranging from $5.00 to $25.00 Many about how to capture what we see and how to capture it better.
I believe what you want to do is use symbolic links in a Dropbox folder, that way when you update a file on your computer it also links with the dropbox file and updates
My only concern with this great deal (and I did update mine) is that it could drive OnOne and Topaz out of this space, which could then lead to nik not innovating since there is no competition.
Lym, not sure if it available to you, but you might check out local community college & high schools to see if the offer continuing education class in photography. I offer these type of classes for adults all the time
was torn between the nikon 70 - 200mm 2.8 and sigma 70-200mm 2.8 tested both lens. Bought the Sigma and have been very happy with the sharpness and the quality build.
I have both a colormunki and a spyder. Downside to spyder was mind was discontinue and could not use it with the newer software up grades(when mac switch to the intel chip). A number of hardware software had that problem. Switch to colormunki it is spot on for calibrating monitor dual display, laptop, cintiq and a projector. I have had very good luck calibrating my printer with it.