NativeScript vs Ionic: http://www.hybridtonative.com/

NativeScript vs Titanium: https://www.nativescript.org/blog/nativescript-for-the-appcelerator-titanium-developer

NativeScript vs Xamarin: https://www.nativescript.org/blog/details/nativescript-and-xamarin

NativeScript vs React Native: https://www.quora.com/What-are-the-key-difference-between-ReactNative-and-NativeScript/answer/Valentin-Stoychev

NativeScript vs jQuery Mobile: https://brosteins.com/2016/07/20/jquery-mobile-versus-nativescript/