TL;DR
If you are building a product that companies buy for their teams, both starters give you the core: organizations, invitations and billing per organization. They differ in auth, depth and testing.
- Pick supastack for a B2B product that also needs API access, webhooks, audit logs, mobile or desktop apps, and a tested codebase.
- Pick Indie Kit B2B if you need per-organization credits or payment providers like Paddle, PayPal or Dodo.
At a glance
| supastack | Indie Kit B2B | |
|---|---|---|
| Structure | Monorepo: web, mobile, desktop | Single Next.js app |
| Web | Next.js 16.3 | Next.js 16.2 |
| Auth library | Better Auth (Auth.js optional) | Auth.js (next-auth 5 beta) |
| 2FA / passkeys | Yes | No |
| Organizations + invites | Yes, owner/admin/member roles | Yes |
| Billing | Stripe or Lemon Squeezy, per-seat | Stripe, Polar, Paddle, Dodo, PayPal, Lemon Squeezy |
| Credits per organization | No | Yes |
| API keys + outbound webhooks | Yes | No |
| Audit log, GDPR export | Yes | No |
| Admin impersonation and bans | Yes | Basic admin |
| Mobile / desktop | Expo, Tauri | No |
| Last update in the version reviewed | September 2026 | June 2026 |
| Test files in repo | 144 | 0 |
Where supastack is stronger
Enterprise buyers ask for these — 2FA, passkeys, audit logs, GDPR export and API access show up on B2B security questionnaires. supastack ships them.
Modern auth — Better Auth by default, with Auth.js as an option. Indie Kit B2B still runs on the next-auth 5 beta.
Integrations — workspace API keys and signed webhooks.
Clients — mobile and desktop apps for field teams or power users.
Tests and freshness — 144 test files and active updates.
Where Indie Kit B2B is stronger
Payment choice — six providers, useful where Stripe is not an option.
Credits per organization — good for usage-based B2B pricing.
Who should pick which
| You are building | Pick |
|---|---|
| B2B SaaS that must pass security reviews | supastack |
| Team product with an API or integrations | supastack |
| Team product with a mobile app | supastack |
| Team product with credit-based usage pricing | Indie Kit B2B |
| Team product that needs Paddle, PayPal or Dodo | Indie Kit B2B |
Verdict
Indie Kit B2B covers the basics of team billing with more payment choices. supastack is the more complete B2B foundation: modern auth, security features buyers ask for, integrations and a test suite.
Comparison based on the source code of both starters as of September 2026. Check each project's docs for the latest features.