Subprocessors

Periodical uses the following third-party services to operate the platform. This list supports transparency for clubs, parents, and compliance reviews (SOC 2 Privacy / Confidentiality).

See also our Privacy Policy.

ProviderPurposeDataLocation
Google Cloud PlatformApplication hosting (Cloud Run), build/deployAccount email, session tokens in transit, app logsUnited States (us-west1 / us-central1)
Google (OAuth / Identity)Sign-in with GoogleEmail, name, profile image from Google accountUnited States
Supabase / GoTrue (self-hosted on TSAI infrastructure)Authentication, MFA, session managementCredentials, MFA factors, JWT sessionsTSAI-operated (DGX Spark); proxied via Tailscale
TailscaleSecure network connectivity (Funnel / tailnet)Connection metadata; no journal contentUnited States
Resend (when email enabled)Transactional email (password reset, admin notifications)Email address, message contentUnited States
Google Gemini API (optional AI features)Coach's read / insights narration when enabledAggregated journal signals sent to model; no raw passwordsUnited States

Last updated 2026-08-28. © 2026, Transcendental Sports AI. These documents are provided for transparency during beta; formal legal review is in progress.