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HUB 06 · Guides

Do Smart Locks Need a Subscription?

The short answer is no, and it is one of the few genuinely good pieces of news in smart home security. The useful answer is where the exceptions are, because there are exactly three of them.

By Stephen V.Updated How we pick
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We earn a commission if you buy through our links. It does not change the price you pay, and it does not decide our picks — our selection criteria are published in full. How this works.

Do smart locks need a subscription?

No. On every consumer smart lock we rank, locking, unlocking, keypad codes, access schedules, activity history and remote access from your phone are hardware functions paid for once at the till. This is the opposite of the camera market, where storage is the product and the plan is the business model. A lock has nothing to store, so there is nothing to rent you.

That is the answer, and it holds. What follows is the part worth your time: the three specific places in this market where a recurring fee genuinely does appear, how to recognize them before you have paid, and why “no subscription today” is a license rather than a property of the metal.

Why locks escaped the subscription model and cameras did not

It is worth understanding the mechanism, because it tells you where the risk is.

A camera generates a continuous stream of expensive data. Somebody has to pay to keep it, and if the camera has no card slot, that somebody is you, monthly, forever. That is the whole argument of our subscription cost model and the reason this site exists.

A lock generates almost nothing. Its entire state is one bit — locked or not — plus a short event log and a handful of PINs, all of which fit in a few kilobytes and most of which live in the lock itself. Codes are validated on the lock, not in a data center, which is why a keypad still works when your broadband is out. There is no storage cost to pass on, so no plan formed around it. The cloud service a lock vendor runs is a relay for remote commands and a notification pipe, and it is cheap enough that every brand in this category gives it away to sell hardware.

The test that catches almost everything: does the device produce video? If yes, expect a plan somewhere and check for a card slot. If no, a monthly fee is a business decision rather than a technical necessity — and in the lock market, nobody has managed to make it stick.

Exception one: rental and property-management access platforms

This is the real one, and it catches hosts rather than homeowners. There is a whole category of software that sits above the lock: it holds the lock accounts for a portfolio of doors, issues and expires codes automatically from a booking calendar, gives cleaners their own credentials, and logs who opened what. RemoteLock is the clearest example, and its published plans are billed per lock per month, in tiers, with annual and monthly options.

That fee is not for the lock. The lock already worked; what you are buying is the orchestration — a booking on a channel manager turning into a code that starts at 3pm on Friday and dies at 11am on Monday without anyone touching an app. Short-term rental platforms and channel managers publish integrations with exactly this layer, which is how you can tell it is a genuine product category rather than a toll.

Whether you need it is a volume question. One property, and the manufacturer's own app does this free: every lock in our Airbnb lock rankings issues time-limited codes without a platform on top, and our guide to guest codes and access walks through doing it by hand. Several properties with turnover, and the per-door fee starts to look cheaper than the hour a week you spend not making mistakes with codes.

Exception two: locks with a camera in them

A video smart lock is two products in one casting, and the camera half brings the camera half's economics with it. Video has to go somewhere. The question to ask about any lock with a lens, before anything else: does it have a card slot, or onboard storage? And check that the thing providing it is actually in the box, because the trap is not always the lens — our Blink Outdoor 4 review is a worked example of a product whose plan-free path exists but arrives as a separate accessory purchase.

If it does, you are fine — the footage lands on hardware you own and the vendor's cloud is optional. If it does not, the clip has to go to a server, and that is where a plan appears. It is the same decision tree as a doorbell, which is why whether video doorbells need a subscription is the better companion read here than anything about deadbolts, and why our camera lock rankings lead with storage rather than with resolution.

Worth saying plainly: a lock with a camera is usually the wrong way to buy a camera. A separate doorbell or camera sees more, mounts where you want it, and can be replaced without touching your door hardware — and a plain deadbolt plus a doorbell is frequently cheaper than the combined unit. The combination is a real answer for a door with nowhere to put a doorbell, and a convenience purchase everywhere else.

Exception three: a lock inside a monitored alarm contract

The third way people end up paying monthly for a lock is that the lock arrived as part of something else. Professionally monitored alarm companies will happily include a smart lock in a package, and that package has a contract, usually a long one, and the lock is integrated into their app rather than yours.

The fee there is for monitoring — a staffed center that calls the police — not for the lock, and it is a legitimate thing to buy if you want it. What it is not is a smart lock subscription. If you want the lock without the contract, buy the lock; the self-monitored equivalent, and what you give up, is set out in self-monitored home security, explained. Be careful of the same packaging in reverse: a lock that only exposes its features through an alarm provider's app is a lock with a dependency, whatever the hardware cost was.

What a smart lock actually costs to keep running

Zero monthly is not zero. The recurring cost of a smart lock is cells, and it varies by close to an order of magnitude depending on the radio you chose.

Recurring cost by connectivity class. Figures are the manufacturers' own published ratings; actual life varies with use, temperature and signal quality.
ConnectivityRecurring costWhat else you may have to buy
Wi-Fi in the lockCells, replaced most often — typically rated in monthsNothing
Bluetooth onlyCells, replaced least oftenA bridge or hub, if you want remote access
Thread / Zigbee (Matter)Cells, long life — the radio sleepsA hub or border router, one off
Retrofit over the thumbturnA rechargeable pack, or cellsA hub for remote access; an adapter kit on some doors

The honest headline is that the cheapest lock to run is rarely the cheapest lock to buy. A Wi-Fi radio sitting in a deadbolt is the heaviest draw in the category because it has to stay associated with an access point, and a door in a weak-signal corner makes it worse — a radio that retries is a radio that drains. The arithmetic, with the published figures and the assumptions shown, is in how long smart lock batteries actually last.

The other cost that is not a subscription but feels like one is the hub. A Bluetooth lock plus a manufacturer hub, or a Thread lock plus a border router, is still cheaper over five years than any monthly plan — it is hardware, bought once — but it is money you have to spend to get the feature you thought you were buying. Count it at the till, not after.

Free today is a license, not a property of the hardware

This is the part most pages on this subject leave out. “No subscription” is a decision a company is making this quarter about software it operates. Anything in your lock that depends on the vendor's servers — remote unlock, push notifications, account sharing, the voice assistant link — can be repriced, degraded or retired, and the lock on your door cannot stop it.

You cannot fully insure against that, but you can reduce the surface, and the method is simple: prefer a lock whose important functions do not route through anyone's cloud. Concretely, that means

  • Local control. Matter over Thread, or Zigbee to a hub you own, keeps lock and unlock inside your house. The protocol background is in Z-Wave against Zigbee against Matter, and the locks that do it properly are ranked in our Matter lock rankings.
  • Codes validated on the lock. A keypad PIN that the lock checks itself keeps working when the vendor, your broadband, or both are having a bad day.
  • A mechanical override. A key cylinder or a fingerprint reader is the thing that makes a cloud outage an inconvenience rather than a locksmith call. What happens in a power cut specifically is a separate question with a reassuring answer.
  • An automation stack you control. If you want a lock that is immune to this entirely, run it locally — the Home Assistant lock rankings exist for people who have decided exactly that.

So what should you buy?

For one home, a lock with no fee attached to anything, which is almost all of them: start at our smart lock rankings and let the door decide, because fit disqualifies more purchases than any software consideration. If the house runs on a voice assistant, the ecosystem pages narrow it faster — the Google Home rankings and the Alexa rankings reach different conclusions for reasons that are about hardware, not price.

For a rented door, a retrofit keeps the landlord's cylinder and still needs no plan: the no-drilling rankings are the page. For several doors you let to guests, price the access platform honestly against your own time rather than assuming either answer. And if a monthly fee is the thing you are trying to escape across the whole house rather than just the front door, the no-subscription hub is where every category on this site gets the same treatment. The rest of the explainers are on the guides hub.

The hardware

The hardware this guide is about

The products this guide refers to, with prices pulled live from Amazon and dated on every card. Full rankings live in the roundups linked above.

  • Ultraloq Ultraloq U-Bolt Pro Wi-Fi (with Handle)

    Best fingerprint lock

    Ultraloq U-Bolt Pro Wi-Fi (with Handle)

    The most entry methods for the money: fingerprint, code, app, Bluetooth, auto-unlock and a mechanical key, with built-in Wi-Fi rather than a bridge. If you want every door to open every way, this is the cheapest route there — and the listing we link ships the matching handle set with the deadbolt.

  • eufy eufy Smart Lock C220

    Best budget fingerprint lock

    eufy Smart Lock C220

    Fingerprint plus built-in Wi-Fi at the bottom of the price band that includes both. eufy's whole pitch is no monthly fee, and the lock line holds to it.

  • Aqara Aqara Smart Lock U100

    Best for Apple Home

    Aqara Smart Lock U100

    The Apple-household pick that is not a Schlage price. Home Key tap-to-unlock, a fingerprint reader, a keypad and a mechanical key, and it speaks to Apple Home, Google Home and Alexa out of the box.

  • SwitchBot SwitchBot Lock Ultra Touch Combo (with Hub Mini)

    Best no-drill retrofit

    SwitchBot Lock Ultra Touch Combo (with Hub Mini)

    The credible way to make a rented door smart without drilling a hole. It mounts over the existing thumbturn, keeps your key, and this bundle puts the fingerprint keypad and the hub in the same box — so codes and remote access both work the day it arrives.

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Questions

Frequently asked

Do any smart locks charge a monthly fee?
Not for the lock's own functions. Across the consumer brands we rank, locking, unlocking, keypad codes, schedules, activity history and remote access are all included with the hardware. Fees appear in three places: property-management access platforms that sit on top of a lock and bill per lock per month, locks with a camera whose video has nowhere local to go, and locks sold inside a monitored alarm contract.
Does remote unlocking from my phone need a subscription?
No, but it may need hardware. Remote access requires the lock to be reachable from the internet, which a Wi-Fi lock does on its own and a Bluetooth lock does only through a bridge or hub. That bridge is a one-off purchase, not a plan. Some locks include it in the box and some sell it separately, which is worth checking before you compare two prices.
Is the August or Yale app free?
The lock functions are. As with the other brands we rank, creating and revoking codes, auto-lock, activity history and remote access come with the hardware, and a plug-in Wi-Fi bridge is what some models need for the remote part. Treat any brand's free tier as a current license rather than a guarantee, which is the argument for keeping a keypad and a mechanical override whatever lock you buy.
What about a smart lock with a camera?
Ask one question: does it store video on a card or onboard, or only in the cloud? Local storage means the vendor's plan is optional. Cloud-only means the clip has to go to a server and a plan is how that is paid for. This is the same decision as buying a video doorbell, and usually a separate doorbell plus a plain deadbolt is the better and cheaper answer.
Do I need a subscription for a smart lock to work with Alexa or Google Home?
No. The voice assistant links are free on every lock we rank, on both platforms. What they do require is that the lock can reach the internet, so the hardware question — Wi-Fi in the lock, a bridge, or a hub — is the one that decides whether voice control works, not a payment.
What is the real yearly cost of running a smart lock?
Batteries, and a replacement set is the whole bill. The variable is the radio: a Wi-Fi lock gets through cells fastest because the radio stays associated with an access point, while a Thread or Zigbee lock sleeps between events and can go years. Add a hub or bridge as a one-time cost if your lock needs one, and that is the complete picture.

Keep reading

Receipts

Sources

We do not run a testing lab and we do not pretend to. Specifications come from the manufacturer's own published documents and from published standards; prices come from the live Amazon API. Where a figure is not published, the page says “not published” rather than guessing. Read the full method.