Privacy policy

Last updated: 9 November 2026

Short version: Wattime collects no personal data. There is no account, no analytics, no advertising, no tracking and no location access.

Who is responsible

The data controller for Wattime is Diego Prados, an independent developer. Contact: dpappssupport@gmail.com.

What we do not collect

• No account or sign-in: you never give us your name or email address.
• No analytics, crash-reporting or advertising SDKs, and no tracking across apps or websites.
• No location: Wattime picks your country from your iPhone’s region settings and never asks for your location.
• We have no servers that receive data from the app.

What the app downloads

To show prices, Wattime downloads public electricity price files from dprados.github.io/wattime-data, hosted on GitHub Pages. For France and the UK it can also fall back to public APIs (api-couleur-tempo.fr for the Tempo colour and Octopus Energy for Agile prices). These requests carry no personal data, but like any web server, GitHub and those services may log your IP address. See the GitHub privacy statement.

What stays on your iPhone

Your country, zone, tariff, units, appliances and alerts are stored only on your device, including the shared App Group container that lets the widgets read them. We cannot see them. Deleting the app deletes them.

Notifications, alarms and Live Activities

Alerts, alarms and Live Activities are created locally on your iPhone from the prices already downloaded. We do not use push notifications and no server knows when you are alerted.

Purchases

Pro subscriptions and the lifetime purchase are processed by Apple through the App Store. We never see your payment details; Apple only tells the app whether Pro is active. See Apple’s privacy policy.

Children

Wattime does not collect data from anyone, including children.

Your rights and changes

Since we hold no personal data about you, there is nothing to access, correct or delete on our side. If this policy changes, we will update this page and the date above. Questions: dpappssupport@gmail.com.