AddTo San Diego is available for iPhone, iPad and iPod Touch. You can find it here.
See locations like Balboa Park, Old Town, La Jolla, Point Loma, Coronado, Little Italy, Imperial Beach and much more. There are these and other points of interest are available for you to see and locate using the provided map.
AddTo lets you build your own travel album of notes and photos. If you have allowed location, then AddTo can build a map of what you were thinking of seeing and where you were seeing it.
If you wish you can share your notes, photos or map using the email button in the lower right corner. The ultimate travel guide is the one you write. What else could fit you best? Your opinions are what matters. Make them and remember them, share them if you wish.