Jacob Sheehy and I co-founded Cumulonimbus to develop Android apps. The name refers to our first app, which deals with atmospheric pressure measurements crowdsourced from smartphones, and uses a database on cloud servers.
The logo is derived from the scientific symbol for cumulonimbus clouds
We had originally settled on a more elaborate logo, a hand-vectored version of a Photoshop sketch. I was enamored with the various imperfect layers of transparency, and tried to balance that with crisp edges. The result nagged at me for a few months until I decided to greatly simplify the logo. It has since gone through four more iterations, simplifying, iconifying, and switching out the type face a few times.