Circuit & Chime

Level Lock+ Review

The smart lock that hides every bit of its tech inside your existing deadbolt, so the door looks completely untouched. It's beautiful and Apple-Home-native, with tap-to-unlock Home Key — but it's expensive, it runs on a CR2 battery instead of AAs, and its best tricks really only land if you live in Apple's world.

By Stephen V.Last updated How we test

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Level Lock+ (invisible, Home Key)

The lock that hides all its tech inside your existing deadbolt, so the door looks untouched. Beautiful and Apple-Home-native — but expensive, and best if you live in Apple's ecosystem.

Strengths

  • Completely concealed hardware
  • Apple Home Key tap-to-unlock
  • Keeps your existing keys and exterior

Trade-offs

  • Premium price for the design
  • Best features assume Apple Home
  • CR2 battery, not AA
Key specHidden hardware, Apple Home Key
SubscriptionNo — works without a plan
Local storageNot applicable (lock)
ConnectivityBluetooth; remote access via Apple Home
PowerCR2 battery
Works withApple Home

Specs read from the product listing, on July 20, 2026. “Not published” means the brand does not state that figure.

General guidance, not professional security advice. Circuit & Chime is written by a smart-home enthusiast, not a licensed installer or security professional. For a home with specific risks, or for life-safety devices like smoke and CO alarms, follow the manufacturer’s instructions and, where it matters, a qualified installer.

Frequently asked questions

Does the Level Lock+ work with Android?

It works over Bluetooth through the Level app, so basic control isn't Apple-only. But the headline features — Apple Home Key tap-to-unlock and remote access via Apple Home — assume you're in Apple's ecosystem. On Android you lose most of what makes it special, so a Yale or August is the smarter buy there.

Does the Level Lock+ have a keypad?

No. The whole point of the design is that nothing about the lock is visible from outside, so there's no exterior keypad. You get in with your existing physical key, a tap of an iPhone or Apple Watch via Home Key, or the app. If you specifically want a code or fingerprint on the door, see our keypad and fingerprint locks guide instead.

Does the Level Lock+ need a subscription?

No. There's no subscription and no recurring fee — control is through the free Level app and Apple Home. Your only ongoing cost is the battery, which is where this lock differs from most: it uses a CR2 cell rather than the AA batteries nearly every other smart lock takes.

Do I keep my existing keys with the Level Lock+?

Yes. The Level Lock+ replaces the interior parts of your deadbolt while keeping your existing exterior and physical keys, so the door looks and works exactly as it did — just with the smarts hidden inside. That's the core of its appeal, and also why there's nothing new on the outside to give it away.

Sources

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