Recoil is described as 'An experimental state management library for React' and is an app in the Development category. There are six alternatives to Recoil for Self-Hosted solutions and Online / Web-based. The best alternative is Redux.js, which is both free and Open Source. Other great apps like Recoil are React Easy State (Free, Open Source), react-context (Free, Open Source), MobX (Free, Open Source) and Vuex (Free, Open Source).
MobX is a state manager - simple and scalable by transparently applying functional reactive programming (TFRP) :
Anything that can be derived from the application state, should be derived. Automatically.
Vuex is a state management pattern + library for Vue.js applications. It serves as a centralized store for all the components in an application, with rules ensuring that the state can only be mutated in a predictable fashion.