Supabase
Supabase tends to fit when
You want SQL you can reason about and a stack the team already likes. Watch project sprawl and usage. Postgres familiarity helps diligence when someone asks where the data lives.
Supabase vs Firebase (startups)
Supabase vs Firebase: a backend vendor is a cost and a lock-in, not a strategy
Reviewed August 21, 2026 by Robb
Firebase is Google’s backend-as-a-service path. Supabase is the Postgres-shaped alternative a lot of teams prefer. Product should choose what they can ship on. Finance should know the invoice, the data gravity, and what happens if you have to leave. ‘We’ll migrate later’ is a sentence we hear before a painful quarter.
Firebase
Firebase tends to fit when
The team is already in that Google path and can operate it. Same watch-outs: reads/writes that explode the bill, and a data model that is expensive to unwind.
Usage-based surprise
BaaS looks cheap until a feature fans out reads. Put alerts on spend. Treat a 3x host/database bill like a hiring decision — it is cash.
Where is the customer data?
A buyer or a security questionnaire will ask. Have an answer: region, backups, who can access. Not ‘it’s in the cloud.’
We do not pick databases
We pick whether the P&L can survive the choice. If engineering wants to switch, we will cost the migration in time and cash before you promise it in a deck.
Frequently asked questions
Which is cheaper?
The one whose usage matches how you built. Last invoice beats a Twitter thread.
Is lock-in a diligence issue?
It can be, if the whole product is one proprietary API. Have a sentence about portability, even if you never port.
Should this be on the cap table?
No. It should be on the vendor list and in software spend. Different sheet, still the company.