Radar Privacy Policy
Effective date: September 13, 2026
Radar is a social app that shows which of your friends are nearby — without revealing anyone’s actual location. This policy explains what information Radar handles, what never leaves your devices, and the choices you have. It’s written to be read, not skimmed past.
Radar is operated by SK Apps, the trading name of Sanjit Kumar (“we,” “us”). Contact: info@sk-apps.com.
The short version
- Your precise location never leaves your devices in readable form. Radar’s servers store scrambled proximity codes they cannot decode into a location.
- Your contacts never leave your device. Matching friends to contact cards happens entirely on your phone.
- We don’t run ads, don’t use third-party trackers, and never sell your data.
- You can delete your account in Settings at any time, which permanently deletes all of your data.
What we collect and why
Account information. When you sign in with Apple, we receive a unique account identifier and, if you share them, your name and email address. We use these to create your profile. Radar also assigns you a friendly public handle (your “Radar ID”).
Phone number. During setup you verify a phone number. We store it so friends who already have you in their phone’s contacts can recognize you. Verification is performed by Google’s Firebase Authentication service, which processes your number and sends the confirmation SMS; we store only the verified number. Your number is visible only to friends you’ve accepted — never to strangers, search results, or pending requests.
Homebase. Your homebase is a city you type in yourself (for example, “Austin, TX”). It is not derived from GPS. Friends can see your homebase; it’s how the map shows which cities your friends live in.
Birthday (optional). You can add your birthday as a month and day — no year. It is shown only to accepted friends, and lets Radar remind them on the day. You can add, change, or remove it in Edit Profile at any time.
Friend graph and social activity. We store your friendships, friend requests, friend groups you create, and the pings, reactions, and rallies you send — including ping message text. Message text may appear in push notifications delivered to your friends.
Proximity codes (how “who’s nearby” works). This is Radar’s core feature, so here is exactly what happens: your device converts its approximate area into short cryptographic codes using keys that are shared only between you and each individual friend, then uploads only those codes. Our server compares your codes against your friends’ codes for equality. When codes match, the server learns which distance band you’re in (roughly within 1, 5, or 10 miles) — it cannot compute your position, address, or route from the codes themselves. Codes rotate every hour; each upload covers only the current hour and the next three, so a code is useless after a few hours even if it were ever copied. Codes are deleted immediately when you unfriend someone or turn sharing off, and are only ever compared between mutual friends.
What the server necessarily learns. We believe in being precise: like any online service, our servers see your IP address and when your device connects. Because proximity matching happens on the server, it also learns the results — which of your friends you matched with, in which distance band, and when. It does not learn where either of you actually was.
Device and notification data. If you enable notifications, we store your device’s push token and your notification preferences so we can deliver friend requests, pings, and rally alerts through Apple’s push service.
What we never collect
- Raw location. GPS coordinates are processed on your devices and are never uploaded in readable form. Your keys sync privately between your own devices via iCloud Keychain, so even we cannot decode your codes.
- Your contacts. Radar reads contacts (with your permission) only on your device, to show friends’ real names and photos. No contact names, numbers, or photos are ever uploaded.
- Camera images. Adding a friend by scanning their Radar code uses the camera only to read the code. Nothing is photographed, stored, or uploaded.
- Where you travel. Radar can tell you when you’re near a city where a friend lives (“Friends’ Hometowns” in Settings). That comparison happens entirely on your phone, against the homebases your friends already shared with you. Nothing about it is sent to our servers, and those friends are not told.
- Analytics and tracking. No advertising SDKs, no third-party analytics, no tracking across other apps or websites, no data brokers.
Who we share data with
We share data only with the service providers that make Radar function, and only what each needs:
| Provider | Purpose | What they process |
|---|---|---|
| Apple | Sign in with Apple; push notification delivery | Account authentication; notification content (e.g. “wants to add you”, ping text) |
| Supabase | Our database and backend infrastructure | All server-side data described above |
| Google Firebase | Phone number verification only | Your phone number during verification |
We never sell personal information, and we don’t share it with advertisers. We may disclose information if legally required, and we’ll tell you if that happens unless the law prevents it.
Your controls
- Go Off Grid hides you from everyone instantly and deletes your proximity codes from our servers.
- Per-friend sharing lets you pause proximity sharing with any individual friend, which also deletes the codes shared with them.
- Unfriending immediately deletes all proximity data between you and that person, in both directions.
- Notification preferences control exactly which events can notify you.
- Delete your account (Settings → Delete Account) permanently removes your profile, friendships, requests, groups, pings, rallies, proximity data, keys, and device tokens. This is immediate and irreversible.
Data retention
Proximity codes expire within hours by design (each is valid for at most four hours). Everything else is kept only while your account exists. When you delete your account, all of it is deleted at once.
Children
Radar is not directed at children under 13, and you must meet the minimum age required to have an Apple ID in your country to use it.
Changes
If we change this policy, we’ll update the effective date above and, for meaningful changes, tell you in the app before they take effect.
Contact
Questions or requests about your data: info@sk-apps.com