Here is a detailed comparison between Apollo and Relay: https://www.graph.cool/docs/tutorials/relay-vs-apollo-iechu0shia/ https://www.graph.cool/docs/tutorials/

Here is a detailed comparison between Apollo and Relay: https://www.graph.cool/docs/tutorials/relay-vs-apollo-iechu0shia/ https://www.graph.cool/docs/tutorials/relay-vs-apollo-iechu0... (Note: This article hasn't been updated for Relay Modern yet but the main points are still the same.)