# Apollo Client

> Apollo Client 4.x for React — queries, cache, local state

**Subcategory:** Apollo GraphQL  
**License:** MIT  
**Source:** https://github.com/apollographql/skills/blob/main/skills/apollo-client/SKILL.md

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## When it is useful

Apollo Client 4.x for React — queries, mutations, cache, local state.

## The Catch

React 18+/19. Distinct from iOS/Kotlin twins (HOLD). GraphOS Free forever, no CC, 3 users; OSS Client/Server self-host $0.