I've been running a mobile and web design and development company for more than 3 years now, and - as also the lead of sales - I often hear the following question: "I want to build Uber (or WhatsApp, Airbnb, etc), but a bit different. How much would it cost?".


Nice framework you provided for making estimates. Reminds of the questionnaire from Crew: http://howmuchtomakeanapp.com/