Compare software

Assertible vs Testfully: catalog facts
Assertible	Testfully
Freemium Hosted service that requires sign-up; see the site for plans.	Freemium Free to start with offline use; paid and enterprise plans available.
Web	Web, Browser extension
Continuous monitoring as well as one-off tests Syncs tests with an imported API specification	Choice of local offline storage or cloud sync Imports from Postman and Insomnia
Requires an account Hosted only, with no self-hosted option mentioned	Proprietary Team and monitoring features are aimed at paid plans
Hosted service	Downloadable app, Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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