You also need to know how to use the various app development platforms. (profitableventure.com)
As per my experience in this field, I recommend developers as well as beginners to use mobile app development platform like Configure.IT, because it provides automatic coding, app preview facility, direct API connect and a lot more features. (goodereader.com)
Twitter is reportedly launching a new app development platform, according to The Information. (businessinsider.com)