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SaaS build cost calculator

Pick the modules your product needs and the platforms you ship. See the hours and money a from-scratch build actually costs — and what the same scope costs on top of supastack's pre-wired modules.

Source on GitHub

Your build

Platforms
Each extra platform adds integration work.
Modules
Only count what you'd actually build.

Estimated build

From scratch
435 h · 10.9 wks · $32,625
With supastack
37 h · 0.9 wks · $2,775
You save
398 hours ≈ $29,850 saved
Hours by module
ModuleDIYKitSaved
Auth & sessions40 h3 h37 h
Payments & billing60 h4 h56 h
Database & ORM30 h2 h28 h
Workspaces & teams45 h4 h41 h
Background jobs35 h2 h33 h
Transactional email20 h2 h18 h
File storage25 h2 h23 h
i18n (13 locales)35 h1 h34 h
Admin panel30 h1 h29 h
Observability20 h1 h19 h
Marketing site30 h2 h28 h
Env & config15 h1 h14 h

40 h = 1 wks

Where the estimates come from

DIY hours reflect designing, building and testing each module correctly — auth with sessions and OAuth, billing with an idempotent webhook ledger, multi-tenant workspaces with RLS, localized transactional mail, and the rest. Kit hours are configure-and-verify time, because supastack ships every one of these modules wired together.

Loved byfounders worldwide.

I'm a marketer, not a full-time developer. Supastack brings auth, workspaces, billing, BYOK AI, email and themes together in one codebase. The AGENTS.md and prompts help me start building with Claude Code without learning every corner of the repo. Solid base for AI SaaS.
bynikojulius profile photobynikojulius
pnpm verify:local, the theme packs and the block library helped me restyle my whole marketing site quickly. The kit is easy to work with.
Universe profile photoUniverse
While building Skin Profile, I could see how auth, billing, jobs and the AI router are configured. It feels complete.
Ka-Chun-Ma profile photoKa-Chun-Ma

Maybe you?

Start building
I'm building Lixing, a local-first reflection app. I ran the monorepo on Windows and pulled four patterns into my app: config, secure license storage, entitlements and a paywall. The port passed 26 tests behind a feature flag before touching production. I don't need auth or billing today, but I know where to look when Lixing needs a backend.
PengGangjie profile photoPengGangjie
I'm using Supastack for my app's backend now. I wish I'd had it from the start. It would have saved me even more work.
OpenMargin24 profile photoOpenMargin24
I went through the repo in depth and ran the Rust tests. Few boilerplates ship a desktop option, so Supastack feels like a dream come true. The boundaries are written down and the code honors them — the desktop app never forks the web app's UI or auth.
Raven S. profile photoRaven S.
I'm not a coder, but Supastack's extensive documentation has taught me so much. I'm already building a landing page for my site, cutviee.com, even though I started with zero coding knowledge. It's truly beginner-friendly.
Cut Viee profile photoCut Viee

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