Caisson vs SaaS Pegasus
SaaS Pegasus is the Django incumbent. Caisson is a TypeScript compliance substrate. The choice is your stack first, then the audit layer.
Which should you use?
Pick SaaS Pegasus if your team is Python-first: it is the mature Django boilerplate, with a code configurator, teams/RBAC, Stripe subscriptions, Celery, a Wagtail CMS, and a choice of React or HTMX. Pick Caisson if you are on TypeScript/Postgres and need the compliance substrate: fail-closed RLS with isolation tests, a WORM + hash-chained audit trail, per-tenant field encryption, and SOC 2 / HIPAA / EU AI Act evidence packs. This is a stack contrast first (Python vs TypeScript) and a compliance-depth contrast second.
What SaaS Pegasus is
Django / Python SaaS boilerplate. Facts below were read from www.saaspegasus.com on 2026-07-07.
- Django / Python, generated from an online code configurator; front end in your choice of React or HTMX.
- Teams/multi-tenancy with an RBAC framework, Stripe subscriptions and per-seat pricing, Celery background tasks, a Wagtail CMS, REST APIs.
- Feature flags, 2FA, user impersonation, i18n, Docker-based dev, the Django admin.
- One-time license from $249 to $999 with one year of updates, verified 2026-07-07.
An honest comparison
Where SaaS Pegasus has a capability, it is marked. Caisson is the compliance and tenant-isolation substrate; SaaS Pegasus wins the rows it wins.
| Detail | Caisson | SaaS Pegasus |
|---|---|---|
| Language / stack | TypeScript + Postgres | Python / Django |
| Auth + 2FA | ||
| Teams / RBAC | ||
| Subscriptions / billing | ||
| Built-in CMS | — | |
| Fail-closed Postgres RLS + automated cross-tenant isolation tests | — | |
| WORM evidence store + append-only hash-chained audit trail | — | |
| SOC 2 / HIPAA / EU AI Act evidence packs + OSCAL export | — | |
| Per-tenant field encryption (envelope, per-tenant key) | — |
What SaaS Pegasus is genuinely better at
A comparison that only flatters one side isn't worth reading. Here is what this kit does well.
If your team lives in Python, Pegasus is the mature, well-documented choice (used by companies like PhotoRoom) with a code configurator, Celery, and the full Django admin. No TypeScript kit replaces that for a Django shop.
Teams and RBAC, subscriptions, a CMS, feature flags, 2FA, and impersonation ship in the box. For a Django SaaS it is a complete, production-grade starting point.
Where Caisson draws the line
The compliance and tenant-isolation substrate a launch kit leaves to you.
Caisson is TypeScript-native on Postgres; Pegasus is Python/Django. If you have chosen your language, that alone likely decides it. Caisson's isolation model is enforced in the database with RLS rather than in the application's ORM layer.
Pegasus ships RBAC and 2FA; it does not ship isolation tests that prove cross-tenant reads fail, a WORM audit trail, field encryption, or OSCAL evidence packs. Those are Caisson's core deliverable.
Which should you pick?
Your team is Python-first, or you want the Django admin, Celery, and a built-in CMS out of the box.
You are building on TypeScript/Postgres and need database-enforced isolation with tests plus audit evidence.
They rarely compose in one codebase: the stacks differ. Choose by language first; if that is TypeScript and compliance is in scope, Caisson is the fit.
One-time, own the source.
Caisson is a one-time perpetual license — the price never recurs, and it includes 12 months of updates from your purchase date, renewable per entitlement afterward at 40% of list per year. The Base substrate is Apache-2.0; the compliance modules are commercial.
Compliance bundle
$1,649, one-time. Fail-closed RLS, WORM, the audit chain, evidence packs, and the framework and signing carves — the whole substrate this comparison is about.
À la carte
Take a single module from $49 — audit-worm, field-crypto, or compliance-core on their own, onto your existing Postgres app.
Everything bundle
$2,259 covers every bundle and every à-la-carte module, plus the open base, in one purchase.
Common questions.
Is Caisson a SaaS Pegasus alternative?
Does SaaS Pegasus handle SOC 2 or HIPAA?
Can I use SaaS Pegasus and Caisson together?
Ship the compliant backend.
Explore the Compliance bundle, browse every module in the marketplace, or read another comparison.