a) Ruby/Rails on the backend, Backbone.js on the front
b) I really don't have any scaling issues. I have about 120 paid customers, and on a given workday half of them login at some point. It probably takes quite some time for the average B2B product to run into scaling issues (unless you're doing some sort of extreme number crunching or something)
c) I do everything. 20% of my product time is spent coding, the rest is marketing. Support whenever I need to (usually less than 30 mins response time if I'm awake)
Feel free to drop me a line with any other questions, I'm pretty much an open book :-) brennan at planscope.io
These are the sort of success stories from you regular joes that are more common than the typical "1 billion dollar acquisition" startup.
A couple of questions if you don't mind:
a) What technology stack are you using/did you use to develop planscope?
b) How did you deal with scalability?
c) Are you doing everything by yourself? Support, Development, Marketing, etc.
Thanks in advance!