Sub-processors

This page lists the sub-processors Aerodyne Inc. engages to process Customer Personal Data on Terrestream's behalf, as referenced by our Data Processing Agreement (Annex C) and Privacy Policy (§P5.2). The authoritative list, including version history and change notices, is maintained in our systems and served here. Material changes are governed by §7 of the DPA.

Infrastructure

| Sub-processor | Role | Processing | Location | | --- | --- | --- | --- | | Amazon Web Services | Cloud infrastructure | Hosting, storage, compute | United States |

Payments

| Sub-processor | Role | Processing | Location | | --- | --- | --- | --- | | Stripe | Web-shop payment processing | Payment, fraud prevention | United States, EU | | Amazon | Amazon-channel payment processing | Payment | United States | | Apple App Store | iOS distribution and in-app subscription billing | Payment, distribution | United States | | Google Play | Android distribution and in-app subscription billing | Payment, distribution | United States |

Communications

| Sub-processor | Role | Processing | Location | | --- | --- | --- | --- | | Mailgun | Transactional email delivery (mg.terrestream.com) | Email, message content | United States | | Apple APNs | Push notifications (iOS) | Push notifications | United States | | Google FCM | Push notifications (Android) | Push notifications | United States |

Analytics

| Sub-processor | Role | Processing | Location | | --- | --- | --- | --- | | Google Analytics | Web analytics (privacy-preserving configuration) | Analytics | United States |

AI providers

| Sub-processor | Role | Processing | Location | | --- | --- | --- | --- | | OpenAI | AI Output phrasing and AI-written climate letters (GPT) | AI inference, generative text | United States | | Anthropic | AI Output phrasing and AI-written climate letters (Claude) | AI inference, generative text | United States | | Google (Gemini) | AI Output phrasing and AI-written climate letters (Gemini via Vertex AI) | AI inference, generative text | United States |

Location and environmental data

| Sub-processor | Role | Processing | Location | | --- | --- | --- | --- | | Google Maps Platform | Outdoor air quality and pollen (Air Quality API and Pollen API) plus Photorealistic 3D map tiles | Air quality, pollen, map tiles | United States | | Open-Meteo | Outdoor weather and climate-normals feed | Weather, climate | EU | | DB-IP | IP-to-location and ISP lookup for visitor geolocation | IP geolocation, ISP lookup | EU |

For how AI providers are used, see AI Model Disclosures (Privacy Policy §P6.6). To start a vendor security review or request the current sub-processor list with change history, please contact our team.