Cornerstone has been one of App Development Calgary firms since 2004. We specialize in developing complex sites with advanced features, e-commerce capabilities, and custom built web applications. We’ve built a lot of websites, A LOT. In fact, over the last dozen years we’ve built over 300 websites, most were built on Content Management Systems and many of which included E-commerce functionality. That’s a lot of websites, you’d think we were a software building machine! But we aren’t. Deep down, we are people just like you, that's why it’s fun to work with us.