Subprocessors
Last updated: April 17, 2026
We use the categories of service providers below to operate Catwalk. Specific vendors may change; we will update this page for material changes where appropriate.
Infrastructure and hosting
- Railway — API hosting and worker processes.
- PostgreSQL — application database (hosted with our infrastructure provider).
- Redis — optional job queue backing.
- Cloudflare R2 — object storage for uploads and outputs (signed URLs).
Authentication and security
- Google Firebase — Authentication, App Check, Cloud Messaging (push), and related Google services used by the App.
AI inference
- Replicate — model hosting and inference.
- fal.ai — model hosting and inference where used.
- OpenAI — language or vision features where used.
Analytics, attribution, and product
- Google (Firebase Analytics, Crashlytics, Performance)
- Mixpanel — product analytics; optional Session Replay on a sample of sessions.
- AppsFlyer — mobile measurement and SKAdNetwork-related attribution.
Subscriptions
- Apple App Store — payment processing for IAP.
- RevenueCat — subscription and entitlement management.