7 of 12 recorded facts differ. Everything below is source-reported with a capture date. Niched has not published a buyer verdict for this pair, so nothing here declares a winner. A winner only exists inside a defined buyer niche with stated constraints.
The most comprehensive authentication framework. Better Auth is open source, written primarily in TypeScript, released under MIT License. Its repository has 29.4K GitHub stars and 2.7K forks, and was last committed to within the last two weeks. Niched places it in Auth & user management.
Frontier is an all-in-one user management platform that provides identity, access and billing management to help organizations secure their systems and data. (Open source alternative to Clerk, WorkOS)