Altair GraphQL Client vs Apollo GraphOS

Altair GraphQL Client is an IDE for running and debugging GraphQL queries, mutations and subscriptions. It formats queries, supports file uploads using the multipart specification, and can export query collections. Users can set environment variables for endpoints, headers and queries, then browse schema types and operations in a documentation explorer. Pre-request and post-request scripts and an extensible plugin system add customization options. Altair GraphQL Cloud provides centralized query management, collections, query versioning and shareable query URLs. Official integration packages include Express middleware, Koa middleware, a static build and a Gatsby plugin. The free Basic plan lists up to two team members and 20 queries; Pro costs $7.99 a month per user and lists unlimited team members, teams and queries. The client is available as a web app and on desktop platforms, including Linux, macOS and Windows, with extension and self-hosted options. The maker says the web app is for quick or one-time use, not full development, because it has limitations. Documentation warns that introspection can expose an API schema and that Content Security Policy support is beta.

Apollo GraphOS has no write-up on Specifiction yet; its figures are above.