Privacy Policy

Last updated 29 September 2026

Who is responsible

Nerdie is published by Nerdie Golf. For any question about this policy or about your data, write to support@nerdiegolf.com.

What stays on the device

• Your photo library. Nerdie asks iOS for the date and location attached to your pictures, and reads them locally.
• Your collection. Courses, rounds, bucket list, playing partners, handicap and your profile live in the app's own storage. Deleting the app deletes them.
• Small copies of your round photos. So that they show instantly, even offline or when the original is in iCloud, Nerdie keeps a reduced copy of each photo on your rounds inside the app. These copies never leave your phone and are deleted with the app.
• Your own places. To avoid inventing a round out of somebody's back garden, Nerdie works out the handful of places you photograph constantly, such as home and work, and leaves them out of the matching. This is derived on the device, never displayed, never named and never sent. It exists only so the app does not mistake your garden for a golf course.

What leaves the device, and why

Anonymous usage measurement

Nerdie records how many pictures a scan read, how many carried a location, how many courses came out of it, and the name of each course that joins a collection. That is what tells us which courses golfers actually play, and which clubs to ask for their own photos. It also records app openings, which is the only proof the app works on a phone that has not scanned yet.

These events carry an anonymous identifier generated by the analytics library, and nothing else. Never your pictures, never who you played with, never the date of a round. That identifier is created by the app on your phone and is never joined to your account, your name or your email address — but it does group the events sent from one install, which means the courses added on a single phone can be counted together. The processor is PostHog, on servers in the European Union.

Friends and the photos you send them

Your account has a profile: your name, your country and, if you set it, your handicap. Signed-in golfers can find you by name and see those details, so they can tell you apart from someone with the same name; you can turn that off in your profile, and nobody can list Nerdie golfers. Someone who finds you sends a friend request that you accept or decline. Someone you send your invite link to becomes your friend by opening it.

When you send photos of a round to a friend, they are resized, re-encoded without their location or camera data, and stored in a private space on Supabase that only you and that friend can read. The course and the date of the round travel with them, so that they land on the right course in your friend's collection. The files are deleted once your friend adds or declines them, or after 14 days. If your friend reports them, the report (who sent what, and when) is kept so that we can review it.

Rankings

Rankings count the courses in your saved collection. Your friends always see your first name and your count. The country and world rankings show you only if you turn that on, and you can turn it off at any time. Your country there is the one where you played the most rounds, worked out from your collection.

Course pages

Courses that have a Nerdie photo load it from our image store. Grid and map thumbnails are fetched in country-sized batches, so that request says only which country you are looking at. Opening a single course page asks for its large image and asks our database what we know about that club, such as its website, phone, access and the year it was founded. Those two requests do name the course you opened. Nothing is attached to them: no account, no name, no history. If a club has a website, the small logo beside it is loaded from that club's own site, never from a third party.

Your account

Nerdie finds your courses before asking for anything, then offers you to sign in. An account is optional, and needed for friends, shared photos and rankings. Your rounds, bucket list, playing partners and handicap are saved to your account so that a new phone can get them back. Never your photos: what is saved is the list of courses and dates, plus references to pictures that only mean something inside your own library.

Accounts are handled by Supabase, and sign-in goes through Apple or Google. Nerdie never sees a password. Your backup is readable only by your own account: the database rules forbid anyone else from reading it.

Subscriptions

Payment is handled entirely by Apple. Nerdie never sees your card or your Apple ID. Subscription status is managed through RevenueCat, which receives the purchase receipt Apple issues and an identifier for your subscription. If you have created an account, that identifier is linked to it so the subscription follows you to a new phone.

What Nerdie never does

• No advertising, no advertising identifier, no cross-app or cross-site tracking. iOS will never show you a tracking permission prompt for Nerdie, because there is nothing to ask for.
• No sale or sharing of personal data with third parties.
• No collection of your precise location by the app. Nerdie does not ask for location access. The places it works with come from the pictures already in your library.

How long things are kept

Data on your device stays until you delete a round, a course, or the app itself. A backup, your profile and your friends stay until you delete your account, which erases them for good, with any photos you sent that are still waiting. Anonymous usage events are kept for as long as they are useful to understand which courses golfers play.

Your rights

You can delete your account and everything kept in it from inside the app, in Profile then Account, and the deletion is immediate and final. You can turn off the photo library access at any time in iOS Settings, and the app keeps working with what it already found. For access, correction, portability or any other request under the GDPR, write to support@nerdiegolf.com.

Children

Nerdie is not directed at children and collects nothing that would identify one.

Changes

If this policy changes, the date at the top changes with it, and the app's own privacy screen is updated in the same release. The rule we hold ourselves to is that the screen inside the app and this page must always say the same thing.