One app per socket is how it goes wrong
A smart home accumulates rather than being designed. A plug here, two bulbs there, a camera at the door, and each one insists on its own application and its own account. Six months later nobody in the house can turn a lamp on without asking which app it lives in. The fix is to decide early which layer is the one you actually use day to day, and to treat the manufacturer apps as setup tools you open twice a year.
The three layers, and which one you should live in
| Layer | What it is for | How often you should open it |
|---|---|---|
| The manufacturer's own app | First time setup and firmware updates | Twice a year |
| An ecosystem hub | Everyday control, rooms, routines, voice | Daily |
| A local controller you run yourself | Automation that does not depend on anyone's cloud | Daily, if you went this way |
| The router's app | Seeing what is on the network and separating it | When something new joins |
| A network scanner | Finding the device nobody can identify | When something looks wrong |
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The apps
Google Home. The most common hub on Android, with rooms, routines and voice control, and it speaks to a wide range of third party kit.
Alexa. The other mainstream hub, with the widest device support of any of them and the better routine editor of the two.
SmartThings. Strongest if the house already has Samsung appliances, and it handles several radio protocols rather than WiFi alone.
Xiaomi Home. The hub for a large and inexpensive device ecosystem. Pay attention to which server region you register on, because moving later is awkward.
Tuya. Behind a great many unbranded plugs and bulbs sold under other names, so it is often the app a cheap device really wants.
Kasa. Plugs and switches that are reliable and simple, with local control on several models.
Tapo. The newer line from the same manufacturer, covering cameras, plugs and bulbs.
Hue. Expensive lighting that works properly, with a bridge on your own network so the switches keep working during an outage.
Home Assistant. The companion app for a controller you run yourself. The most capable option here, and the one that needs the most from you.
Broadlink. Infrared blasters that bring an old air conditioner or television into the same system as everything else.
Wemo. A long standing plug and switch line, worth knowing if you inherited some.
Doorbell and camera control. Check the subscription terms, because recording history is where this category charges.
Multi room audio. Its grouping is the part that other systems still do not match.
Router administration for TP-Link hardware, including a guest network you can put devices on.
The same for ASUS routers, with reasonably good per device controls.
And for Netgear hardware. Worth having installed even if you only use it to see who is connected.
Mesh network management, where the app is the only interface the hardware has.
Fing. Lists everything on the network with a guess at what each device is. The fastest way to find the thing you did not know was connected.
WiFiman. Signal strength, speed and a device list. Useful for deciding where a weak bulb or camera actually sits.
Channel analysis, for the case where the smart home is unreliable because the WiFi is, not because the devices are.
A house that still works when something fails
- Name devices by room, on day one Bulb 2 is meaningless in a routine and worse in a voice command. Renaming later means rebuilding every automation that mentions it.
- Put the cheap devices on a guest or separate network It keeps a poorly maintained plug away from the laptops, and most routers can do it with a toggle.
- Change default passwords and turn on two factor where it exists Cameras and doorbells are the ones that matter here, because they are the ones people try.
- Keep physical switches working Anything where the only way to turn on a light is a phone will eventually annoy somebody who does not have one.
- Update firmware from the manufacturer app twice a year This is the only reason to keep those apps installed, and it is a real one.
- Outside lights on a schedule
- Heating around when people are actually home
- A plug that cuts power to something that should not run all night
- One button that turns everything off at bedtime
- Anything that has to work for a guest
- A light with no working wall switch
- Locks, unless you have thought hard about it
- A routine that only one person in the house understands
Choose one everyday app, keep the manufacturer apps for setup and firmware, separate the cheap devices from the rest, and ask what still works offline.
Frequently asked questions
Do I need a hub, or is WiFi enough?
WiFi devices work without one. A hub matters when you want devices from different makers in one routine, or when you want radio protocols that do not use WiFi at all, which are usually more reliable for battery sensors.
Will the lights stop working if the company disappears?
If they depend on that company's cloud, yes, and this has happened to several product lines. Devices that support a local protocol or a local controller are the insurance against it.
Is it safe to put a camera on my home network?
Safer on a separate network, with a strong unique password and two factor authentication enabled. Treat the account protecting it as seriously as an email account, because it sees more of your house.
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