Auth0Customer identity and login platformAuth0 for Startups: one year of the B2B Professional plan freeYoung, venture-backed startups with under $5M raised and under $1M ARR can get one year of Auth0's B2B Professional plan at no cost, with up to 100,000 monthly active users.Startup perkOfficialApproval neededOne year of B2B Professional free, up to 100,000 MAUVerified Oct 23View dealfor Auth0 (opens provider site in a new tab)
FirebaseGoogle's app development platformFirebase Spark plan: no-cost tier with free quotasFirebase's Spark plan is free with no payment method, including no-cost quotas for Firestore, Realtime Database, Hosting and Authentication, and unlimited use of products like Crashlytics and Cloud Messaging.Free planOfficialNo credit cardNo-cost Spark planUnverifiedView dealfor Firebase (opens provider site in a new tab)