BetaList shines when you need early adopters for a product still in beta. Its audience expects rough edges and signup flows. Free queues can take weeks; paid expedites exist.
Launchpadly is built for products ready to launch on a weekly board — with screenshots, a working site, and competition for community upvotes — plus a permanent listing afterward.
Use BetaList before public launch to collect testers. Use Launchpadly when you are ready for a dated launch week and ongoing directory discovery. They are complementary, not clones.