Thought it wouldn't hurt to start a thread for the aforementioned topic...
First and foremost, a good app to keep track of your score.
Easy Scorecard (Pro) is by far the disc golf tracking app to have. The free version is great but the pro version is AMAZING. You can automatically download course info (it must be previously submitted by another user, however). The developer is great, I have worked with him on several issues/features and every time he replies back to me the same day!
Easy Scorecard
Easy Scorecard Pro ($2.29 and WELL worth it!!)
Just a few reasons why it rules:
-It will track your PDGA SSA score (if an SSA rating is entered for the particular course/tee you are playing)
-It keeps track of your personal average for EVERY HOLE YOU PLAY.
-There are also several side games that it can track, including: Skins, Stableford, Nassau and Team Nassau. Wagers can be placed and are tracked while the game goes on!!

-When finished with a round, you can email (I prefer to send to my dropbox, personally) an html scorecard.
-You also have the option to output as CSV so you can track it in a database on your computer if you prefer.
Here is a snapshot of the completed scorecard.
As an added bonus, but completely optional, courses can be GPS'ed out entirely, including tees and holes. This gives distances to hole for each shot should you be so inclined to pay attention to that.
The physical address, contact phone, and website can also be stored so that all this info is readily available. Just a couple clicks and you can get turn by turn directions to the course, call a course contact, or head to the course website.
One of my favorite features is having an online database that stores course info. Available at:
http://easyscorecard.net/. You can enter new course info here (or via the phone app, then upload to online server) so that it is available for other users to readily download into the (Pro) app.
It's a

for sure!!!
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Any other favorite DG apps out there, for keeping score or otherwise??