Platform migration

From Firebase to Supabase, without losing a user.

Move from Firebase to Supabase — Firestore to Postgres, Firebase Auth to Supabase Auth, Functions and Storage included — with SQL, row-level security and predictable pricing.

  • 0 downtime
  • Every record checked
  • Fixed price & date
  • 100% yours
The villain

The Firebase Bill

Every read costs you — and the queries you need aren't possible.

Firestore queries can't do the joins and reports you need
Your Firebase bill jumps with every spike in reads
Security rules have become hard to reason about
You want SQL, open source and less vendor lock-in
Your team already knows Postgres
The cost of waiting

Every traffic spike means a bigger bill and another report you can't run.

It's not your fault. The tools that got you here won't get you there.

Every great product hits this wall. Here's who gets you over it.
The hero

Firebase's speed. Postgres's power.

Senior architects lead the move. 13 AI agents check every step. You keep running your business.

Senior-led

Architects who have done this move before make every decision.

AI-checked

13 agents test, guard and verify every change and every record.

Prototype in 1 day

See the new version working before you commit to anything.

The battle plan

How we defeat The Firebase Bill

  1. 01Week 1

    Audit and schema design

  2. 02Weeks 2–3

    Migration scripts, RLS policies and functions

  3. 03Week 4

    Dual run and verification

  4. 04Week 5

    Cutover, Firebase kept as rollback

What moves where

Nothing is lost. Everything gets better.

  • Firestore collectionsPostgres tables and relations
  • Firebase Auth usersSupabase Auth, with password hashes where supported
  • Security rulesRow-level security policies
  • Cloud FunctionsEdge Functions or a Node service
  • Storage bucketsSupabase Storage
  • Realtime listenersSupabase Realtime subscriptions
Life before and after

The difference you'll feel.

With The Firebase BillAfter UDEX
  • Monthly billspikes with readspredictable
  • Queriesno joinsfull SQL
  • Securityrules spaghettirow-level security
  • Lock-inproprietaryopen source
Our promise

A move without the fear.

Audit of collections, rules, functions, storage and clients · Schema design from your documents to relational tables

0 downtime

Users switch over without noticing.

Rollback ready

The old system stays as a safety net until you say so.

Every record checked

Counts and checksums before the switch — nothing lost.

Fixed price & date

Agreed before work starts. No hourly billing.

FAQ

Questions, answered.

Straight answers about risk, timing and cost.

Will users need to reset passwords?

Usually not — Firebase password hashes can be imported into Supabase Auth, so users sign in as before.

Does realtime still work?

Yes. Supabase Realtime covers live updates; we port your listeners one by one.

What about our mobile apps?

We update the iOS, Android or Flutter clients and release them before the cutover.

Is Supabase cheaper?

For most read-heavy apps, yes — we estimate both bills during the audit.

Your move

Defeat The Firebase Bill.

30 minutes to map where you are and where you need to be — and a working prototype of the new version in 1 day.

Estimate your project

Five quick questions → a plan for your product.

01 / 05What are you building?