Microsoft has been building Word on Windows since the 80's, so it's never going to be re-written. I'm not that familiar with the Mac version of Word, but I find

Microsoft has been building Word on Windows since the 80's, so it's never going to be re-written. I'm not that familiar with the Mac version of Word, but I find the Mac Excel version lacking compared to its Windows counterpart. For Word and Excel for iOS and Android they use... React Native [1]. [1] https://blog.appfigures.com/microsoft-goes-all-in-on-react-native-for-their-mobile-apps/ https://blog.appfigures.com/microsoft-goes-all-in-on-react-n...