We use Angular (older version is referred to as AngularJS or Angular.js) to develop complex enterprise front-end solutions. It is well-suited to be a backbone of a complex mobile and desktop applications that require meeting narrow guidelines as well as enlisting a big team of engineers.
We pick React (often referred to as React.js or ReactJS) to build a wide variety of user interfaces, especially when it comes to the creation of a large single-page applications. React provides us with a great environment for fast development as well as efficient testing of individual components. Additional Redux state container makes the code more intuitive and protects it from misuse by other developers. Projects built with React are also highly indexable by the search engines.
We utilize Vue.js to build complex and performant apps using the framework’s flexibility. Vue.js allows us creating independent components which speed up the development process. Thus we are able to produce an MVP quickly and abide by strict deadlines. We also use Vuex library for state management.