I have solid data from official pricing pages plus a couple of comparison sources. Here's the summary. --- # Supabase competitors & their authentication pricing models Quick note: I'm reading "Superbase"/"super faces" as **Supabase** (the open-source Postgres + auth BaaS). Below is Supabase's own model as the baseline, then the main competitors grouped by how they charge, with citations to the pages I opened. ## Baseline: Supabase Auth - **Free:** $0 — 50,000 monthly active users (MAU), 500 MB DB, 5 GB egress, 2 projects (paused after 1 week idle). ([supabase.com/pricing](https://supabase.com/pricing)) - **Pro:** $25/mo (first project), includes **100,000 MAU**, then **$0.00325 per MAU** — the lowest per-user overage in the comparison I reviewed. ([supabase.com/pricing](https://supabase.com/pricing), [zuplo.com](https://zuplo.com/learning-center/api-authentication-pricing)) - **Team:** from $599/mo (adds SSO, SOC2/ISO, etc.) · **Enterprise:** custom. ([supabase.com/pricing](https://supabase.com/pricing)) **Pricing model:** freemium + usage-based per-MAU overage, tied to a broader BaaS (DB, storage, functions). ## Auth-focused competitors ### Clerk - **Hobby:** $0, up to **50,000 MRU** per app (an MRU = user who returns 24+ hrs after signup). ([clerk.com/pricing](https://clerk.com/pricing)) - **Pro:** $20/mo billed annually ($25 monthly), 50,000 MRU included, then **$0.02/mo each**, tiering down to **$0.018 → $0.015 → $0.012** at higher volumes. ([clerk.com/pricing](https://clerk.com/pricing)) - **Business:** $250/mo annually ($300 monthly). **Enterprise:** "only billed annually," custom. Add-ons like SSO connections are **$75/mo each**. ([clerk.com/pricing](https://clerk.com/pricing)) - **Model:** freemium + tiered per-user, plus feature/connection add-ons. ### Auth0 (Okta) - **Free:** up to **25,000 MAU**. **Essentials:** $35/mo (up to 500 MAU). **Professional:** $240/mo (up to 500 MAU). **Enterprise:** custom. ([auth0.com/pricing](https://auth0.com/pricing)) - Overage runs roughly **$0.07/MAU** — 5–10× most competitors; at 50K MAU ≈ **$1,750/mo**, at 100K ≈ **$5,250/mo** (Essentials, B2C). Hidden add-ons: enterprise SSO connections, M2M tokens, adaptive MFA. ([zuplo.com](https://zuplo.com/learning-center/api-authentication-pricing)) - **Model:** freemium + seat/mau tiers, with paid enterprise add-ons; skewed toward enterprise contracts. ### Stytch - **Pay-as-you-go from $0:** always free **10,000 MAU and AI agents**, unlimited Organizations, **5 SSO/SCIM connections**, **1,000 M2M tokens**. ([stytch.com/pricing](https://stytch.com/pricing)) - Beyond free: **$125 per SSO/SCIM connection**, $0.005/fingerprint for fraud tools, $99 one-time for full brand customization. **Enterprise:** custom. No hard caps or pricing cliffs. ([stytch.com/pricing](https://stytch.com/pricing)) - **Model:** pay-as-you-go with no feature gating + per-connection charges. ### WorkOS - **User Management:** free up to **1 million active users**, then **$2,500/mo per additional 1M**. ([workos.com/pricing](https://workos.com/pricing)) - **Enterprise SSO / Directory Sync:** **$125 per connection** (volume discounts: $100 → $80 → $65 as counts grow). Custom domain **$99/mo**; Radar fraud protection 1,000 checks free, then $100 per 50k. ([workos.com/pricing](https://workos.com/pricing)) - **Model:** generous free user tier, monetized mainly on enterprise *connections* — ideal if you're selling to businesses. ## BaaS/infra competitors (closer to Supabase's bundle) ### Firebase Authentication (Google) - **Free:** 50,000 MAU/mo free for email/password + social; ~10K SMS verifications free. ([cloud.google.com/identity-platform/pricing](https://cloud.google.com/identity-platform/pricing)) - **Tier 1 MAU (email/phone/anonymous/social):** 0–50K **$0**, then **$0.0055** (50K–100K) → **$0.0046** (100K–1M) → **$0.0032** (1M–10M) → **$0.0025** (10M+). ([cloud.google.com/identity-platform/pricing](https://cloud.google.com/identity-platform/pricing)) - **Tier 2 (OIDC/SAML):** 50 free, then **$0.015/MAU**. **Phone/SMS** billed per message (e.g. US $0.01, Spain $0.04, Germany $0.10). ([cloud.google.com/identity-platform/pricing](https://cloud.google.com/identity-platform/pricing)) - **Model:** freemium + graduated per-MAU + per-SMS. ### AWS Cognito - Three tiers replacing the old single model, chosen per user pool: - **Lite:** **$0.0055/MAU** falling to **$0.0025** at volume (cheapest; no advanced security). - **Essentials:** **$0.015/MAU** — the default for new pools. - **Plus:** **$0.020/MAU**, no free tier. ([aws.amazon.com/cognito/pricing](https://aws.amazon.com/cognito/pricing/), [akalcloud.ai](https://akalcloud.ai/blog/cognito-pricing/)) - **Free tier:** Lite & Essentials include **10,000 MAU/account**, never expires; SAML/OIDC federated users get 50 free then $0.015. Plus has no free tier. ([aws.amazon.com/cognito/pricing](https://aws.amazon.com/cognito/pricing/)) - **Model:** tiered feature plans priced per MAU — pick Lite to save, Essentials for passkeys/passwordless, Plus for threat protection. ([akalcloud.ai](https://akalcloud.ai/blog/cognito-pricing/)) ### Appwrite - BaaS with built-in auth; full platform under one subscription. Free + Pro plans, and **$10/mo in compute credits** included for database usage each month; dedicated compute tiers run **$10/mo (Starter) up to $4,099/mo (Scale Max)**. ([appwrite.io/pricing](https://appwrite.io/pricing)) - **Model:** plan + usage-based compute. ### Kinde - Free tier + usage-based paid plans (their pricing table is rendered dynamically and didn't load fully in my session — treat these numbers as unverified). Listed as an auth competitor alongside Clerk/Auth0/Stytch. ([kinde.com/pricing](https://www.kinde.com/pricing/)) ## Open-source / self-host alternatives From the Encore comparison, other Supabase alternatives are **Convex** (TypeScript reactive backend), **PocketBase** (single-executable self-hosted, SQLite — **no platform fee, you pay for the server**), and **Neon** (branching Postgres with managed auth). ([encore.dev](https://encore.dev/articles/supabase-alternatives)) ## Bottom line for an auth build - **Cheapest per-MAU at scale:** Supabase ($0.00325) and Google/Firebase (down to $0.0025) — both have huge free tiers. - **Best free tier for B2B:** WorkOS (1M users free) and Stytch (10K MAU free). - **Simplest all-in-one BaaS with auth:** Supabase, Firebase, Appwrite. - **Avoid unless you need enterprise features:** Auth0 — by far the priciest (~$0.07/MAU) and add-on-heavy. Pricing changes often (Cognito notably restructured in Nov 2024), so verify current numbers on each vendor's page before committing. Want me to build a cost table for a specific MAU count (e.g., 50K or 200K users)?