# Third-Party SaaS

External services we pay for or depend on.

## Active

- **RevenueCat** — in-app purchases, subscription management (iOS/Android/web)
- **ElevenLabs** — voice synthesis for voice assistant
- **PostHog** — product analytics, feature flags, surveys

## Trying

- **[Paper](https://paper.design/)** — collaborative design tool. Really nice design on their own site. Trying the MCP server for now.