Privacy policy
Last updated 10 November 2026
Earthed: PAT Testing ("Earthed") is an app for recording PAT testing. It's made by Jack Nicolson in the UK, who is responsible for your account data. Contact earthed@nicolson.xyz about anything in this policy.
The short version
- Earthed stores what you put into it, so it can sync between your devices and produce your reports.
- There's no advertising, no tracking and no analytics, and your data is never sold.
- Your data is stored in the UK (London), and passes through a sync service in the EU (Ireland).
- You can delete your account and everything in it from the app at any time.
What's collected
| Data | Why |
|---|---|
| Your email address, and your name if you sign in with Apple and share it | Your account, signing in, and account emails such as confirming your address |
| An account ID | Linking your records to your account and syncing them |
| Your business details, testers, qualifications, signatures, instruments and logo | Your certificates and reports |
| Your clients, sites, locations, assets, jobs, test results, defects and reports, including clients' names and contact details | The records you keep in the app |
| Photos you take or add | Records of items, rating plates and damage, and your reports |
| Your subscription's App Store transaction ID, product and expiry date | Knowing whether your account has Pro |
Earthed doesn't collect your location, contacts, browsing, or device identifiers for advertising. Payments are handled by Apple; Earthed never sees your card details.
Your clients' data
Information about your clients and their premises is yours. You decide what goes in and what it's used for, so for that data you're the controller and Earthed processes it on your behalf, only to store, sync and report it for you. Earthed never contacts your clients; reports and reminders go from your own device's Mail.
Where it's stored, and who processes it
- Supabase stores your account, records and files in its London (UK) region.
- PowerSync syncs your records between your devices, from its servers in Ireland (EU).
- Apple handles Sign in with Apple, purchases and subscriptions, under Apple's own privacy policy.
Each is bound by a data processing agreement to use your data only to provide its service. A copy of your records is kept on each device you sign in on, so the app works offline.
How long it's kept
Your data is kept for as long as you have an account, because PAT records are often needed for years. When you delete your account (Settings › Account › Delete account), your account, businesses, records and files are deleted from Earthed's servers straight away, and, if you used Sign in with Apple, Earthed's access to your Apple ID is revoked. Signing out removes the copy on that device. Any backups held by these providers expire within 7 days.
The legal basis
Under UK GDPR, Earthed uses your data to provide the service you've asked for (contract), and keeps subscription records because the law and Apple's rules require it (legal obligation and legitimate interests).
Your rights
You can ask for a copy of your data, ask for it to be corrected or deleted, object to how it's used, or ask for it to be moved elsewhere. Most of this you can do in the app; for anything else, email earthed@nicolson.xyz. If you're not happy with the answer, you can complain to the Information Commissioner's Office at ico.org.uk.
Children
Earthed is a tool for people working in electrical testing, and isn't meant for children.
Changes
If this policy changes, the new version will be posted here with a new date, and anything significant will be shown in the app.