Privacy Policy

Updated 11 November 2026

Who we are

Survival Handbook is run by Mather Software Ltd, registered in England and Wales, which is the controller of your personal data under UK GDPR. Contact us at support@mathersoftware.com.

The short version

The handbook, search and emergency numbers work on your phone: what you read and search for is never sent anywhere. You don't need an account. We don't sell data, show ads or track you across other apps.

What we collect

Questions you send to the Survival Agent while online, so it can answer them: we don't keep them on our servers after answering, and we ask you not to put names or other personal details in them. A random identifier for your install, with a count of the questions it has asked and whether it has Pro. Your purchases of Pro, tied to that identifier. Crash reports. If you choose to sign in: your email address (and your name, if you sign in with Apple) and the date you agreed to these terms. We don't collect your location: emergency numbers are chosen from your phone's region setting, on the phone.

Who we share it with

Anthropic (the AI model that answers Survival Agent questions sent while online; it processes each question and its retention of it is limited by its terms with us). RevenueCat and Apple (purchases). Convex (servers and database). Clerk (sign-in: the app contacts Clerk when it starts to see whether you are signed in, and holds your email only if you sign in). Expo (app updates). Sentry (crash reports: device model, OS version and what the app was doing when it crashed, never your questions or account details). When the Survival Agent answers offline, it runs on your phone and nothing is sent to anyone.

How long we keep it

The install identifier and its question counts are kept while the app is in use and removed after 12 months without use. Purchase records are kept as long as tax and accounting law requires. If you signed in, deleting your account in Settings erases your account data and sign-in identity straight away. Crash reports aren't linked to you and Sentry deletes them within 90 days.

Your rights

Under UK GDPR you can ask for a copy of your data, ask us to correct or delete it, or object to how we use it. Email support@mathersoftware.com. You can also complain to the Information Commissioner's Office at ico.org.uk.

Questions: support@mathersoftware.com