Qt, Elixir, Convertigo, Adobe AIR, Haxe, Haskell, B4X, Appcelerator Titanium, Apache Cordova, Sencha Touch, Tigerappsuite, Kurogo Mobile Platform, Mooestro Mobile Education Platform, Airplay SDK, eMobc, Trigger.IO, Magentrix, IBM Worklight, MoSync, appMobi, MonoTouch are some alternatives to RhoMobile.