NearBye — your Mac locks when you walk away

Walk away. It’s locked.<br>NearBye watches how near your iPhone is and locks your Mac the moment you leave the room. No rituals, no unlock theater — it just locks.<br>Download on the Mac App Store — $4.99<br>macOS 14+  ·  One-time purchase  ·  No accounts, no network<br>NearBye

Your iPhone is nearby<br>Your Mac locks when you walk away.

Lock when you’re<br>Steps away A room away Far away

Distance, in human terms<br>Steps away, a room away, or far away. Pick how far is too far — no dBm charts, no calibration dance.

Never mid-sentence<br>If you’re typing, it waits. The activity guard holds the lock until your hands leave the keys.

Fails locked, not open<br>Bluetooth off? Connection dead? Phone never found? Every failure path ends in a locked Mac.

HOW IT WORKS<br>Three steps. Then forget it exists.<br>1 Pick your iPhone<br>On first launch NearBye offers your own iPhone in one click. Watches and AirPods work too.

2 Walk away<br>Signal fades past your chosen distance, the grace period runs out, and the real macOS lock screen comes up.

3 Walk back<br>It notices your return and re-arms by itself. Apple Watch auto-unlock lets you straight back in.

HONEST ABOUT SECURITY<br>Walk-away protection, not marketing theater<br>Most proximity locks oversell. Here is exactly what NearBye does and doesn’t do.<br>Fails locked, not open<br>Bluetooth off, connection dead, phone never found — every failure path ends in a locked Mac.

Spoof-resistant by design<br>A bonded iPhone’s identity is resolved from its rotating private address. Without the pairing key, broadcasting fake “I’m here” frames does nothing.

A grace window exists<br>Between you leaving and the lock firing there are ~10–20 seconds. This stops the office snoop, not a sprinting thief.

Nothing leaves your Mac<br>No network calls, no accounts, no analytics. Settings sit in UserDefaults; logs contain integers.

Questions, answered plainly<br>Does it unlock my Mac too? + − No — sandboxed App Store apps can’t type your password, and pretending otherwise would be theater. Apple Watch auto-unlock and Touch ID already make re-entry instant.<br>Will it drain my iPhone’s battery? + − No. It’s one extra BLE connection answering a signal query every 2 seconds — the kind of load AirPods put on your phone all day. You won’t find it in the battery stats.<br>What if someone sits down right as I leave? + − Honest answer: there’s a ~10–20 second grace window, and the default activity guard holds the lock while anyone is typing. You can shorten the grace and turn the guard off in Options.<br>Do I need an account or an internet connection? + − No. NearBye has no accounts and makes no network connections — it works entirely offline on your Mac. Nothing you do in it is ever sent anywhere.<br>Which devices work? + − Anything with Bluetooth LE. Your iPhone is the obvious choice; Apple Watch and AirPods work; so does a fitness band. macOS 14 or newer required.

$4.99. Once. That’s it.<br>No subscription, no account, no analytics. One coffee, and your Mac locks itself for good.<br>Download on the Mac App Store macOS 14 Sonoma or newer · Apple silicon & Intel