Privacy Policy

Controller: Hehku Company Oy (3259593-4), Väinämöisentie 7 E, 04200 Kerava, support@wattspotter.com. This policy covers the Wattspotter app, its web version and its Google Home integration (the "service"). Suomeksi.

What we process and why

DataPurposeBasis
Email address and Google or Apple account identifierSign-in and account identificationContract
Names, types and identifiers of the Google Home devices you connect to price controlControlling and showing your devicesContract, consent (Google Home permission)
Rules, settings, electricity contract prices, the town of your homeComputing the schedule, total price, sunrise/sunsetContract
Control events (when a device was switched and why)Running the schedule, savings estimate, troubleshootingContract
Push token (FCM/APNs)Notifications, if enabledConsent
Google Home account-linking tokens (OAuth)Delivering control commands to Google HomeContract

We do not process your device's location; you choose the town yourself. We do not sell data, use it for advertising, or train AI models with it.

Google Home and Home APIs

The service uses Google's Home APIs and a Google Home integration. Data processed by Google is subject to the Google Privacy Policy. Access to your devices requires a permission you grant in Google's screen and can revoke at any time in the Google Home app or your Google Account settings. Device data obtained through the Home APIs is retained for at most 10 days; we permanently store only the names and identifiers of the devices you have connected to price control, and they are deleted when you remove the device or your account.

Retention

Control events 400 days (yearly statistics), removed devices 30 days, sent notifications 90 days, expired authorization codes and tokens immediately. Your account and all data are deleted immediately when you delete the account.

Processors and transfers

Google (Firebase Authentication, Firebase Cloud Messaging, Google Home / HomeGraph): data may be processed outside the EU under Google's standard contractual clauses and the EU–US Data Privacy Framework. The server is located in Finland. Electricity prices: ENTSO-E Transparency Platform and porssisahko.net (no personal data).

Your rights

You can access, correct and delete your data in the app (Settings → Account → Delete account) or by writing to support@wattspotter.com. You have the right to data portability, to object, and to lodge a complaint with the Finnish Data Protection Ombudsman (tietosuoja.fi). Account deletion: instructions.

Updated 2026-10-01 · Hehku Company Oy · 3259593-4 · Väinämöisentie 7 E, 04200 Kerava · support@wattspotter.com