When comparing Appcelerator Titanium vs Codename One, the Slant community recommends Codename One for most people. In the question“What are the best systems to deliver native Android and iOS apps from one code?” Codename One is ranked 8th while Appcelerator Titanium is ranked 9th.
Ranked in these QuestionsQuestion Ranking
Pro Provides a native experience
Through using Titanium's API and UI components similar to that of the platform's native UI, Titanium provides a native experience.
Pro High performance
Pro Open source
Pro Highly customizable
By utilizing lightweight component architecture and the built in graphical designer and theming options you are able to customize a good looking app on any platform.
Pro Java 8 support
Pro Works with all IDEs
Works with NetBeans, Eclipse, IntelliJ, etc.
Pro Multi-platform development environments (via build server)
You can even use Linux desktops to build native iOS apps, no need for a Mac.
Pro Vibrant & helpful community
Pro Attractive pricing
It is possible to build production grade apps even with the free version. Pricing is decent when compared to competitors like Xamarin.
Con Has specific requirements with regards to installed libraries
Prices start at $39/month for an indie subscription. For a team account, the price is $249/month per seat.
Con Most plugins are paid
Appcelerator Marketplace is meant to sell to developers 3rd party plugins and functionalities as well as code samples. Thus, people will prefer to sell you their plugins and samples instead of making them open source. This will increase costs of development.
Con Lack of capabilities
For example, there is no way to read QR codes natively.