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Creo 2.0 is a next generation app design and development tool for macOS. This version introduces native Swift exporting and Flex layouts (via Facebook Yoga). We'll soon introduce third party plugins support and in Q3 2019 cross platform Android support (with Kotlin exporter).
Swift exporter showcase is available from: https://vimeo.com/313809511
Creo is a next generation Mac tool which aims to combine the Design and Development process into a single easy to use application. Thanks to our CreoKIT we always use NATIVE components and classes, no simulated or web based code is used.
Been using earlier betas of Creo and I've followed the development of the product from the early stage. Glad to see it finally hit v 1.0 - a great tool to show non-developers the principles of app development, the wiring of components and intro them to software development before writing some code!
I use Creo every day instead of Xcode. I recommend Creo for advanced and beginners. Creo in his documentation includes tutorials that are useful to start. After that, if there is a problem, the community will help.