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EchoAPI vs Testfully: catalog facts
EchoAPI	Testfully
Freemium Usable without an account, with paid plans listed on the pricing page.	Freemium Free to start with offline use; paid and enterprise plans available.
Command line	Web, Browser extension
Works without logging in and offline Runs Postman scripts	Choice of local offline storage or cloud sync Imports from Postman and Insomnia
Closed source Some features are tied to paid plans	Proprietary Team and monitoring features are aimed at paid plans
Downloadable app	Downloadable app, Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.