... video calls, but there was a niche of people who used Skype to make cheap international calls to mobile and landline numbers. That was a golden opportunity major playing leaving the market, and its users scrambling for an alternative. That s how I made Yadaphone. I took one feature of Skype I used myself making cheap overseas calls, and created a website that allowed people to do it. Launch I built an MVP in a weekend. The design was minimalist ... ... management logic in a night, and the next morning was presenting my solution to his company of 20 people. That worked, we onboarded him and the next day I got a Stripe notification of several hundred bucks. It felt surreal