Last updated: June 23, 2026
To run Nihongo, Estate One Company Limited uses the service providers below. They process personal data only on our instructions, under contract. See the Privacy Policy for detail.
SupabaseHosting / DB / Auth
Database, authentication, file storage, hosting. Processes account & learning data and shared content.
Data location: [region]. Safeguards: SCCs where applicable.
Anthropic, PBCAI
AI text & vision (Claude) — processes text you submit and images for Scan & Read, plus learning context.
Data location: United States. Not authorized to train general models on your private content, to the extent their terms allow.
Google LLCSpeech / Sign-in
Text-to-speech, speech recognition, and Google OAuth profile (if you use Google sign-in).
Data location: United States & global. Used only when you use those features.
Apple Inc.Sign-in / Payments
Apple sign-in identifiers and App Store subscription/transaction status.
Data location: United States & global.
RevenueCatSubscriptions
Manages in-app subscription state and entitlements (via the app stores). Receives purchase/transaction status — not your full card number.
Data location: United States.
scienceBulk content pre-generation (news level-rewrites, translations) runs on our own machines / a local model and free Gemini on public source text — it does not process your personal data, so it isn't a sub-processor here.
edit_noteConfirm each provider's current data-processing region and whether you've signed a Data Processing Agreement (DPA) with them; fill the [region] chips.
§Changes
We'll update this page before engaging a new sub-processor. Material changes are also reflected in the Privacy Policy.
balanceNot legal advice. Draft template for review before publishing.