SkillKnex policy
Sub-processors
The third-party service providers (sub-processors) SkillKnex uses to process personal data, what each one does, and where it is located.
Version 1.0 · June 20261. About this list
A sub-processor is a third-party service provider that processes personal data on our behalf to help us run SkillKnex. Each one may only process your data on our instructions, under a data processing agreement, and not for its own purposes.
This page supports Section 5 of our Privacy Policy. It gives the specific providers behind the provider categories listed there.
2. Current sub-processors
| Provider | What it does | Data it receives | Location |
|---|---|---|---|
| Supabase | Database, authentication, file storage | Account, profile, content, activity, creator data | United Kingdom |
| Railway | API hosting | Request data in transit (no separate store) | United States |
| Mux | Video hosting, encoding, captions/transcripts | Lesson and Action Proof videos; auto-generated transcripts | United States / global edge |
| Cloudflare | Image storage, website CDN, DNS, security | Avatars, thumbnails, lesson/proof images; IP address for security | Global edge |
| OneSignal | Push notification delivery | A user/device push identifier and notification content | United States |
| Resend | Transactional and account email | Email address, name, message content | United States / EU |
| Google Firebase (App Check) | App-integrity / anti-abuse checks | Device-attestation tokens and app/device signals | United States |
| PostHog | Product analytics (only if you opt in) | Usage events, device/app info, a user identifier | United States |
| Expo / EAS | Mobile builds and app updates | App bundle; limited update-check signals | United States |
| Anthropic (Claude) | AI features (e.g. understanding search queries) | The text you submit to that feature (e.g. a search query) | United States |
Where a provider is outside the UK, we rely on the safeguards described in Section 6 of the Privacy Policy (for example the UK International Data Transfer Agreement or the UK Addendum to the EU Standard Contractual Clauses), or on a UK adequacy decision where one applies.
3. Changes to this list
We may add, remove, or replace sub-processors as the Service evolves. We keep this page up to date and, for significant changes, will give notice where the law requires.
Questions about our sub-processors: privacy@skillknex.com.