BuildFire is described as 'Build mobile apps in a fraction of the time and cost using BuildFire’s powerful and easy to use app builder'. There are more than 10 alternatives to BuildFire, not only websites but also apps for a variety of platforms, including iPhone, SaaS, Android and iPad. The best alternative is Microsoft PowerApps. It's not free, so if you're looking for a free alternative, you could try Clappia or AppsGeyser. Other great sites and apps similar to BuildFire are AppSheet (Free Personal), AppGyver (Free), Trunao (Freemium) and Glide (Freemium).