For iPad/ Apple users- I found an app called Plant Album- I downloaded it and so far, it seems helpful. I wish I knew how to do a screen shot...anyhow, I can create gardens, add plants and photos, notes, etc. It comes in two versions- lite (free) and the full version for 7.99. I am trying the free version.
I also googled apps for Google/android products and there are a couple of apps that look promising.
I purposefully got a tablet for use in the garden, because I hate taking photos on my phone and then uploading them- one too many steps for me. So much easier to take the photos with the tablet...