In addition to the comments below, I quickly looked at * Bubble.is – UI looks great, but this is a full stack solution that requires hosting by them. * Lightni

In addition to the comments below, I quickly looked at * Bubble.is – UI looks great, but this is a full stack solution that requires hosting by them. * Lightning app builder – only runs on salesforce platform * Bobile – confused about this one, but it seems to focus on a special kind of sales mobile apps, and analytics. * I _thought_ there were some UI building tools (ala balsamiq) that exported the UX into code. Maybe I should just give up and deal with the FE UI directly in code. Even in GoogleAppMaker, code maintenance of larger deployments is not so easy. At least, it's easy to accidentally duplicate code, and hard to search and replace over all code snippets spread across all events and triggers.