Alt Auth vs Supabase Auth
A Supabase Auth alternative that works with any backend
Alt Auth is a Supabase Auth alternative for teams whose app does not run on a Supabase database, or who want a ready-made branded login page and a user dashboard their whole team can use. Your app gets a signed token back, whatever backend it runs on.
Updated · By the Alt Auth team · Supabase Auth facts checked against Supabase Auth’s own pages in October 2026
Is Alt Auth a good Supabase Auth alternative?
Alt Auth is a standalone, hosted white-label login service that works with any backend; Supabase Auth is built into a Supabase project. Choose Alt Auth when your app does not run on Supabase or you want a ready-made branded login and user dashboard.
Choose Alt Auth if
- Your backend is not a Supabase database
- You want a hosted, branded login page
- You want a user dashboard for your whole team
- You want user data hosted in the EU
Why teams look for a Supabase Auth alternative
Not tied to your database
Supabase Auth is part of a Supabase project. Alt Auth works with any backend — Postgres, MySQL, a serverless API or no backend at all.
A ready-made, branded login page
Your logo and colours from Starter, full styling on Growth and your own domain from Growth, with nothing to design or build.
Sign-up analytics and alerts included
Charts of who signs up and from where, plus failed-login alerts on every plan.
Alt Auth vs Supabase Auth at a glance
Supabase Auth details are taken from Supabase Auth’s own pricing and documentation pages at the time of writing (October 2026); prices change, so check the sources below before deciding. “Not confirmed” means we could not verify it on an official page.
| Alt Auth | Supabase Auth | |
|---|---|---|
| Pricing model | Monthly base fee with active users included, then a fixed price per extra active user | Per monthly active user (MAU) |
| Free tier | Hobby: free up to 1,000 monthly active users, 1 app, no card | 50,000 MAU |
| First paid plan | Starter: $29/month with 10,000 active users, then $0.015 each | Pro: $25/month with 100,000 MAU, then $0.00325 per MAU |
| Hosted or self-hosted | Fully hosted — nothing to run or patch | Hosted service, part of a Supabase project |
| Branding and white-label | Hosted login with your logo and colours from Starter, full styling on Growth, no Alt Auth name on Enterprise | Supabase branding on emails on Free; removed on Pro |
| Login on your own domain | From Growth ($99/month) | Add-on from Pro: $10 per domain per month per project |
| Social sign-in | Google on every plan, Facebook from Growth; Apple and Microsoft coming soon | Google, Apple, Microsoft (Azure), Facebook, GitHub and many more |
| Two-step verification (MFA) | From Starter | TOTP included; phone MFA $75/month for the first project |
| Enterprise SSO (SAML) | Coming soon on Business (1 connection included) | SAML from Pro: 50 MAU included, then $0.015 per MAU |
| EU data hosting | Yes — database in AWS Frankfurt, API in AWS Stockholm | Yes — pick a region per project, e.g. Frankfurt, Ireland, Paris or Stockholm |
| Moving users in | CSV user import from Starter; imported users set a new password by email | Recreate users through the admin API; bcrypt and Argon2 hashes supported |
When Supabase Auth is the better choice
We would rather you pick the right tool than the wrong one. Stay with Supabase Auth if:
- Your app already runs on a Supabase database and uses its row-level security.
- You need a large free tier (50,000 monthly active users) or a lower price per user at high volume.
- You need SAML single sign-on, Apple or Microsoft sign-in today.
- You want to import existing password hashes.
Migrating from Supabase Auth to Alt Auth
- 1
Export your users from the Supabase auth schema (email, name and sign-up date).
- 2
Create a free Alt Auth project, add your logo and colours, and turn on the sign-in methods you use today (Google on every plan, Facebook from Growth).
- 3
Point your app’s “Sign in” button at your Alt Auth login page and verify the signed token it returns — usually an afternoon of developer work.
- 4
Import your users from a CSV file (from Starter). Password hashes are not imported: people set a new password through a reset email, or simply continue with Google.
- 5
Run both side by side for a while, then switch the old provider off once everyone has signed in.
Is Alt Auth a good Supabase Auth alternative?
Yes, if your app does not use a Supabase database or you want a branded hosted login and a user dashboard out of the box. If you are all-in on Supabase, its built-in auth is the natural fit.
Does Alt Auth host data in the EU like Supabase can?
Yes. Alt Auth’s database runs in AWS Frankfurt and its API in AWS Stockholm, for every customer and every plan.
Can I move my users from Supabase Auth to Alt Auth?
Yes. Export your users and import the CSV into Alt Auth (from Starter). Password hashes are not imported, so people set a new password through a reset email or continue with Google.
Sources
Supabase Auth facts on this page come from these official pages, checked in October 2026.
Try Alt Auth as your Supabase Auth alternative
Free up to 1,000 users a month. No card needed. Sign in with Google from day one.