Seattle startup AppSheet has raised $15 million to fuel growth of its platform that helps businesses develop their own data-based apps without requiring a team of developers. Shasta Ventures led the round, with participation from existing investor New Enterprise Associates. Total funding to date is $19.3 million. Founded in 2014, AppSheet sells software that enables nearly 6,000 customers such as Husqvarna Group, Solvay, Tigo Guatemala, American Electric Power, M&O Partners, Boom Technology, and others to build “no-code” apps.