Very simplified alternative to #Scapple. In most cases I would go with Scapple. The advantage here is that it is very easy to incorporate status and importance information into the diagram (by color and thickness of the box borders). This is an easy way to document the activities of the day. But then again, Scapple is also, and is far more flexible albeit more expensive.
Recommended but a stability improvement (bug fix) is needed.
This figure shows my current core set of apps. I use these about 90% of the time when I am on the iPhone (in addition to the built-in apps). This set of apps permits you to do some pretty advanced calculations, manage tasks, write longish memos, clean up your pictures, use social media, show movies, take notes, and store web pages for later reading.
Who woulda thought in 1967 that tricorders would exist during the lifetimes of my high school friends and I; cell phones did not become available for another 20 years, and the original scientific calculator was released about 1974.
Now half of the adults around me in a college town look like Spock staring into his beloved tricorder (about 8 times the size of an iPhone). A lot of them seem to have about the same degree of social intelligence as Spock as they stare at the machines in restaurants with their friends.
Without further ado, a look at what is on my iPhone.