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Technology · head to head

Finxact vs Supabase

Finxact logo

Finxact

Technology

Cloud native core banking, sold as Finxact from Fiserv since the 2022 acquisition

From
On request
Rated
-
Full reviewWebsite
Supabase logo

Supabase

Technology

The open source Firebase alternative

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Supabase has a free tier, so it costs nothing to try first.
  • Each has a real cost: Finxact fiserv sells several core platforms, so a buyer should demand written investment and support commitments for Finxact specifically rather than trusting that the surviving brand implies a protected roadmap.; Supabase free tier projects auto-pause after 1 week of inactivity
  • They diverge on capability: Finxact covers Cloud native core, Supabase covers PostgreSQL database.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Finxact and Supabase actually diverge.

Attributes where Finxact and Supabase differ
AttributeFinxactSupabase
Starting priceOn requestFree
Pricing modelquoteUnknown
Free tierNoYes
PlatformsWeb, API, CloudWeb, iOS, Android
FoundedUnknown2020

Identical on both: user rating (Not yet rated), category (Technology).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Finxact

  • Cloud native core
  • Real time posting
  • Configurable product definitions
  • Fiserv ecosystem access
  • Embedded banking support
  • Open API model
  • Multi tenant deployment
  • Regulatory reporting hooks

Only in Supabase

  • PostgreSQL database
  • Auto-generated APIs
  • Authentication & authorization
  • Real-time subscriptions
  • Storage
  • Edge functions
  • Vector embeddings
  • Database migrations

What people use each for

The jobs each tool is most often brought in to do.

Finxact

  • A United States regional bank replacing a legacy core but unwilling to take supplier viability risk on an independent challengernot Supabase
  • A community bank launching an embedded banking or sponsor bank programme on modern railsnot Supabase
  • An institution already running Fiserv card and payment services that wants the core on the same vendor relationshipnot Supabase
  • A bank standing up a new digital brand on a clean core while leaving the existing back book in placenot Supabase

Supabase

  • Web application backends using Postgres plus auto-generated REST/GraphQL APIsnot Finxact
  • Mobile app backends via Flutter/Swift/Kotlin client librariesnot Finxact
  • AI applications using vector/embeddings storagenot Finxact
  • Authentication with 20+ social providers plus email/passwordnot Finxact
  • File and media storage (S3-compatible with CDN) and realtime sync over WebSocketsnot Finxact

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Finxact

  • Fiserv sells several core platforms, so a buyer should demand written investment and support commitments for Finxact specifically rather than trusting that the surviving brand implies a protected roadmap.
  • Core migration is a multi year programme where the licence is a small share of total cost against integration, data migration and parallel running.
  • Buying the core from Fiserv strengthens a relationship that already covers cards and payments, which weakens your negotiating position across the whole estate at renewal.
  • It is a United States product with United States regulatory and product assumptions, so international banks get little from it.
  • Being part of a very large vendor changes the service experience: the responsiveness that made Finxact attractive as a startup is not guaranteed inside a company of Fiserv's scale.

Supabase

  • Free tier projects auto-pause after 1 week of inactivity
  • Free tier hard caps: 500 MB database, 1 GB file storage, 5 GB egress/month, 50,000 monthly active users, max 2 active free projects per organization
  • Pro plan charges usage overages beyond included quotas, e.g. $0.00325 per MAU above 100,000 and $0.125/GB disk above 8 GB
  • SOC2/ISO 27001 certification and HIPAA (add-on) compliance require the $599/month Team plan; not available on the $25/month Pro plan

Pricing, plan by plan

Finxact

On request
  • Finxact from Fiserv$undefined/year
    • Quoted per institution, commonly on accounts or asset size
    • Implementation and integration costs typically exceed the licence fee
    • Bundled commercially with other Fiserv services in many deals

Supabase

Free
  • FreeFree
    • 50,000 MAU
    • 500MB database
    • 5GB egress
  • Pro$25/month
    • 100,000 MAU
    • 8GB disk
    • 250GB egress
  • Team$599/month
    • SOC2 and ISO 27001
    • HIPAA add-on
    • 28-day log / 14-day backup retention
  • Enterprise$undefined/month
    • Custom limits
    • Dedicated support manager
    • 24/7/365 support

Which should you pick?

Choose Finxact if

  • You need cloud native core.
  • You work on Web, API, Cloud.
  • You also want real time posting.
Finxact review

Choose Supabase if

  • You need postgresql database.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want auto-generated apis.
Supabase review

Questions people ask

Is Finxact or Supabase better?
Neither clearly leads. Finxact starts at On request and Supabase at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Finxact or Supabase?
Supabase has a free tier; the other does not. Paid plans start at On request for Finxact and Free for Supabase.
Does Finxact or Supabase run on more platforms?
Finxact runs on Web, API, Cloud. Supabase runs on Web, iOS, Android.
Can I use Supabase for free?
Yes. Supabase has a free tier, so you can try it without paying. Finxact starts at On request.
What is Finxact best used for?
Finxact is most often used for a united states regional bank replacing a legacy core but unwilling to take supplier viability risk on an independent challenger, a community bank launching an embedded banking or sponsor bank programme on modern rails, an institution already running fiserv card and payment services that wants the core on the same vendor relationship, a bank standing up a new digital brand on a clean core while leaving the existing back book in place. Of those, a united states regional bank replacing a legacy core but unwilling to take supplier viability risk on an independent challenger and a community bank launching an embedded banking or sponsor bank programme on modern rails are not what Supabase is typically brought in for.
What can Finxact do that Supabase cannot?
Finxact covers Cloud native core, Real time posting, Configurable product definitions, Fiserv ecosystem access. Supabase covers PostgreSQL database, Auto-generated APIs, Authentication & authorization, Real-time subscriptions.

Answered from the vendors’ own pages

Finxact: Is Finxact still sold under its own name?

Yes. Fiserv acquired it in 2022 and continues to market it as Finxact from Fiserv, winning named core deals with it.

Supabase: How much does Supabase cost?

Supabase offers a free tier and three paid plans. Pro starts at $25 per month, Team at $599 per month, and Enterprise requires a custom quote. All pricing is in USD charged monthly.

Source
Finxact: Is it genuinely cloud native?

Yes, API first with real time posting on public cloud, rather than a hosted version of a legacy core.

Supabase: What are Supabase's usage overage fees?

Pro plan users pay $0.00325 per monthly active user over the 100,000 included, and $0.125 per GB for database storage exceeding 8 GB per project. Compute instances cost $10 to $3,730+ per month.

Source
Finxact: How long is a migration?

Plan in years. Even a focused deployment is a multi year programme once integration and data migration are counted.

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