# A predictable backend for your SaaS

> Ship a multi-tenant SaaS on real Postgres with row-level security, then pay one flat price instead of a metered bill that grows with every signup.

Source: https://scribase.com/use-cases/saas-backend

Scribase gives your SaaS Postgres, Auth, Storage, Realtime, and Functions, with row-level security for tenant isolation and a flat price you can put in a budget.

## The pains this solves

- Metered bills that scale with signups before revenue does
- Tenant isolation that is easy to get subtly wrong
- Add-ons — recovery, previews, custom domains — that stack up

## How Scribase addresses it

**Multi-tenant isolation with RLS** — Model tenants in Postgres and enforce isolation with row-level security. Policies are linted for cost, so tenant-scoping does not quietly become your slowest query.

**One flat price, caps not meters** — Verified restore, preview branches, and custom domains are in the plan. You forecast a number, not a usage curve.

**Staging that mirrors production** — PR-linked preview branches give every change a full environment — database, auth, and storage — that is swept when the branch closes.

## FAQ

**How does Scribase handle multi-tenant data?**

With Postgres row-level security. You scope rows by tenant and enforce it in policies, which Scribase lints for cost so isolation stays fast.

**Will my bill grow as I add customers?**

No metered per-user or per-GB lines. You choose a plan with hard caps; if you outgrow them you buy a capacity pack, never a surprise invoice.