[ilikerashers]

"In mid-September 2016, we began the development process. In early December of 2016, the “Sense – Social Media Time Tracker” app made its debut in the App Store."

That's an incredibly fast build time!

[threeseed]

I used to work for a mobile agency and we used to complete a decent sized app from concept to in-store in about a month.

Very easy if the tooling is good, the testing is easy (only a few device types) and it's only one target platform.