Which is better for launching a SaaS: supastack or ShipFast?
It depends on what you are validating. ShipFast is the fastest path to a single-user Next.js MVP: lean code, Auth.js, Stripe or Lemon Squeezy, landing blocks for weekend launches. supastack is stronger once the product must serve teams: organization workspaces, eight billing providers plus RevenueCat, Expo and Tauri apps, API keys, signed webhooks, BYOK AI budgets, 144+ tests. For quick validation pick ShipFast; for a product you keep, supastack.
TL;DR
ShipFast popularized the paid-boilerplate category: a focused Next.js template that gets a solo founder from idea to checkout over a weekend. supastack is a monorepo foundation for products that outlive the MVP: two web stacks, mobile, desktop, team workspaces and a developer platform, backed by a real test suite.
- Pick ShipFast if you are a solo founder validating a simple B2C idea fast, and a lean single-app codebase matters more than depth.
- Pick supastack if you need team workspaces, more than two payment providers, mobile or desktop clients, API keys and webhooks for customers, or a tested codebase you can safely change.
At a glance
| supastack | ShipFast | |
|---|---|---|
| Structure | Monorepo: web, mobile, desktop, shared packages | Single Next.js app |
| Web | Next.js 16.3 | Next.js (App Router) |
| Mobile / desktop | Expo (iOS + Android), Tauri desktop | No |
| Auth | Better Auth: email OTP, password, magic link, OAuth, 2FA, passkeys, admin impersonation and bans; Auth.js option | Auth.js (NextAuth): Google OAuth, magic links |
| Team workspaces | Personal + organization workspaces, invites, owner/admin/member roles | No, single-user focus |
| Billing | Stripe or Lemon Squeezy, per-seat | Stripe, Lemon Squeezy |
| AI | Provider router, encrypted BYOK keys, per-workspace usage budgets, model price catalog | Minimal helpers (OpenAI) |
| API keys + outbound webhooks | Yes | No |
| Audit log, GDPR export | Yes | No |
| Marketing surface | CMS + docs site | Landing blocks, SEO blog structure |
| Languages | en, de, es, fr | en |
| Deploy | Vercel, Docker, self-host | Vercel |
| Test files in repo | 144 | 0 |
Where supastack is stronger
Teams and B2B, personal and organization workspaces, invitations, owner/admin/member roles and per-seat billing are built in. ShipFast is single-user by design.
Billing reach, eight web payment adapters (Stripe, Lemon Squeezy, Polar, Creem, Dodo, Paddle, Whop, PayPal) behind an idempotent webhook ledger, plus RevenueCat on mobile. ShipFast ships Stripe and Lemon Squeezy.
Clients beyond the web, an Expo iOS/Android app and a signed Tauri desktop app share auth and API with the web surfaces.
A developer platform, workspace API keys, signed outbound webhooks, an audit log and GDPR export let customers integrate with you from day one.
AI with cost control, an adapter router with encrypted per-workspace BYOK keys and usage budgets, so one customer cannot run up your AI bill.
Tests, 144 test files plus a credential-free local verification gate. ShipFast ships none, so every customization is verified by hand.
Where ShipFast is stronger
Simplicity, a small single-app codebase you can read in an afternoon and reshape without monorepo ceremony.
Launch speed for a solo MVP, the whole surface is tuned to get a landing page, auth and checkout live in days.
Community and extras, a large buyer community, a public leaderboard and bundled partner discounts.
Marketing snippets, landing sections, SEO helpers and email copy aimed at B2C launches.
Who should pick which
| You are building | Pick |
|---|---|
| Weekend solo MVP to validate an idea | ShipFast |
| Simple B2C tool or landing + waitlist | ShipFast |
| B2B SaaS with teams and seat billing | supastack |
| Product with a mobile or desktop app | supastack |
| AI product needing per-workspace budgets | supastack |
| API-first product with customer webhooks | supastack |
Verdict
ShipFast is a strong choice for validating a simple idea alone; its limits show once you need teams, more billing providers, mobile or desktop, or anything customers integrate against. supastack costs a little more upfront reading but saves the rewrite when the product keeps growing.
Comparison based on the source code and docs of both starters as of October 2026. Check each project's docs for the latest features.