Smart Locks That Work With SimpliSafe (2026)

Which smart locks does SimpliSafe support?

SimpliSafe's own pages name two lock routes, and neither is a list of third-party Z-Wave locks, which is the main difference from Ring Alarm's approach (see smart locks that work with Ring Alarm).

August's own SimpliSafe page lists one more bundle, the August Wi-Fi Smart Lock + Keypad. The Yale Approach Lock, which August also sells, is not on either company's SimpliSafe list, so do not assume it works.

The August integration is set up from the SimpliSafe web account, not the app. SimpliSafe's support article says it is not currently possible to set it up from the SimpliSafe App: you open Integrations in the online account, authorize August, enter a PIN that August emails you, and then pick how the lock reacts to each arming state.

How the SimpliSafe Smart Lock works with the system

The SimpliSafe Smart Lock is a retrofit. It mounts over the inside of a standard single-cylinder deadbolt with a screwdriver, keeps your existing key working, and runs on 4 AA batteries. It requires a SimpliSafe Gen 3 system. SimpliSafe says it recommends keeping the system on Wi-Fi but that Wi-Fi is not required.

What it does with the alarm, per SimpliSafe's product and support pages:

• Arming locks the door. All equipped doors lock when you set the system to Home or Away.
• Unlocking disarms. Entering any valid PIN on the PIN Pad unlocks the door and disarms the system. SimpliSafe's support article adds that whenever you unlock the Smart Lock, it also disarms the system, to prevent false alarms.
• Locking does not arm. SimpliSafe states plainly that the Smart Lock cannot arm your system when you lock your door; it can only disarm on unlock. So lock-and-leave still needs a tap on the keypad, app or key fob.
• Auto-Lock. You can set the lock to relock after 30 seconds, 1 minute or 5 minutes.
• Door sensor sync. If an Entry Sensor is on the same door, you can pair them so the lock does not throw the bolt while the door is open.
• Wrong-PIN handling. From the fifth wrong PIN the lock starts app alerts and progressively longer lockouts, and cameras on the system start recording. After the eleventh wrong attempt, customers with professional monitoring get a call from the monitoring center.
• Duress PIN. A duress PIN unlocks and disarms as normal but silently alerts the monitoring center that you need police, with select monitoring plans.

That last pair of features is where the monitoring plan matters for the SimpliSafe lock. The lock itself does not list a plan requirement, but the monitoring center call and the duress alert only exist if a professional monitoring plan is active.

Which SimpliSafe plan do you need for a smart lock?

For the August integration, SimpliSafe's support article requires a supported residential or business monitoring subscription, and August's page says syncing is available to SimpliSafe customers on the interactive professional monitoring plan. SimpliSafe's monitoring page lists August compatibility (lock and unlock when you arm or disarm) as a plan feature in its comparison of the Core, Pro and Pro Plus plans.

SimpliSafe's plan prices as of October 2026, from its support page:

SimpliSafe's marketing page states the same three main tiers per day: Core $1.10/day, Pro $1.66/day and Pro Plus $2.66/day. We could not find a SimpliSafe page that says whether the Standard plan supports the August integration, so if you want August on Standard, confirm with SimpliSafe before buying the lock. Our SimpliSafe monitoring cost guide breaks down what each tier adds.

Without any plan, SimpliSafe says you keep live camera view and remote arm and disarm in the app, but you lose emergency dispatch, the built-in network backup during a power outage and the other paid features.

Which lock to buy, on paper: if you are adding a lock to an existing SimpliSafe system, the SimpliSafe Smart Lock is $80 cheaper than either August option and does not depend on a cloud link between two companies. August makes sense if you already own one, or if you want a lock that also works with Apple HomeKit, which August lists for its Wi-Fi Smart Lock. For how SimpliSafe's lock compares with Abode's and Ring's options, see smart locks for security systems. Doorbell cameras follow the same pattern of first-party and partner options; see video doorbells that work with alarm systems.