We have written before about subscriptions, which are the visible cost of a smart home. This post is about the invisible one.
Because plenty of ecosystems really are free. No monthly fee, a capable app, and hardware sold below what it costs to make. That is not a trick, and the companies offering it are not losing money by accident.
They are buying something. It is worth understanding what.
Free hardware is a customer acquisition cost
When a speaker or hub sells for less than its bill of materials, the loss is an investment being recovered somewhere else. In the smart home that "somewhere else" is rarely a subscription. It is the next purchase, and the twenty after that.
Once you own three devices from one ecosystem, the fourth is chosen for you. Not by a contract — by the fact that anything else is more annoying. That is the asset the discount bought.
Switching cost is the actual price
The cost that matters is not what you paid. It is what leaving would cost, and it grows quietly.
Rebuying hardware. Devices tied to one ecosystem are not resellable at anything like their value, and the replacements are full price.
Rebuilding automations. Every routine you configured has to be recreated somewhere else, from memory, because there is no export. For a household with twenty automations, this is a weekend nobody wants.
Retraining the household. The people you live with learned the phrase, the app, the button. Changing it is a social cost, not a technical one, and it is usually the one that actually blocks the move.
Losing history. Energy data, recordings, patterns. Rarely exportable in any useful form.
None of these appear on a receipt. Together they are why people stay in ecosystems they have stopped enjoying.
Curious whether Nexop fits your home?
Book a live demo — one of the founders runs it, not a salesperson — or join the waitlist and hear from us the day it ships.
Doing the five-year arithmetic
Compare honestly, across a realistic horizon.
The free ecosystem. Hardware near zero. Some subscription for the useful tier. Replacement cycles, because inexpensive devices are built to inexpensive lifespans, and discontinued products that must be replaced even though they still work. Add the switching cost you are accruing, which you will pay eventually — either by leaving, or by never being able to.
The one-time purchase. A higher number on day one. No monthly fee. Devices you can take with you, because a protocol-native system does not care which brand you buy next.
Over five years these are frequently closer than they look, and often reversed. That is not an argument that one-time purchase always wins — for a household with two smart bulbs and a speaker, the free ecosystem is genuinely the better deal and we would say so.
It changes when the number of devices grows, because switching cost scales with device count while the sticker price does not.
What lock-in looks like before you are locked in
Four questions, worth asking while you still have a free choice:
Does it work without the vendor's account? If your lights need a login to turn on, the account is the product.
Are the protocols standard or proprietary? Zigbee, Matter, KNX and WiFi devices work with other systems. Proprietary radios do not, by design.
Can automations be exported? Almost never. An honest "no" at least tells you the number.
What happens when a product line is discontinued? Look at what the company did the last time. It has almost certainly happened before, and the answer is public.
The version we would defend
We are not neutral here — Nexop is a one-time purchase, so of course we prefer that model. The argument for it is narrower than "subscriptions bad":
A product that runs on your hardware, speaks standard protocols, and does not require an account has no mechanism to lock you in. If you stop liking it, your Zigbee sensors and KNX wiring keep working with whatever you replace it with. That is a real constraint on us, not a feature we are claiming — it means we have to keep earning the position rather than relying on it being expensive to leave.
Two honest notes. Nexop is pre-launch, and final pricing has not been announced. And if you have three devices and no ambitions beyond that, the free ecosystem is probably the right answer for you today.
If your device count is heading somewhere larger, the protocols guide is where to start, and the FAQ covers what we do and do not support. Or book a demo and ask what it costs to leave — we will answer.