Kasa Smart

Review by eFreeware

Kasa Smart is a control app for one brand's hardware, and it makes no apology for that. It is the software side of a TP-LINK smart home: you buy a compatible Kasa device, install the app, and use it to add that device, adjust its settings and operate it from wherever you happen to be. The app itself costs nothing and carries no ads or in-app purchases.

That narrowness is the point. If your home already runs on Kasa plugs, switches, bulbs, cameras or extenders, this is the layer that ties them together. If your smart devices come from other manufacturers, there is nothing here for you, because the app works only with the TP-LINK models it lists.

The numbers suggest a lot of people have made that choice already: over five million installs and a 4.7 average across more than 143,000 ratings. The app has been on Google Play since November 2015, so it has had a long run to accumulate that audience.

Everyday control from wherever you are

The core job is simple and, for a lot of households, genuinely useful. Once a device is set up, the app lets you monitor it and turn it on or off remotely, so a lamp left burning in an empty room is a problem you can fix from a phone rather than a trip home. The same applies to anything plugged into a Kasa smart plug: a fan, a space heater, a coffee maker, a holiday light display.

The developer describes the app as a portal to your TP-LINK smart home, and that framing is fair. Configuration lives here too, not just day-to-day switching, so you can adjust how a device behaves rather than only toggling it. For someone who wants one place to check on the house, that consolidation is the main appeal.

Because control works from anywhere in the world, the app is also a way to check that things are as you left them. Whether you are away for an afternoon or a fortnight, the same screen answers the question of what is on and what is off.

Schedules that run without you

Scheduling is where a smart plug earns its keep. You can set appliances to switch on or off according to a schedule you define, which means the morning routine can start before you reach the kitchen and the evening lights can come on while you are still on the way back. Set it once and it keeps running.

That sounds like a modest feature, and in a house it could prove surprisingly practical. A slow cooker, an air purifier, a set of grow lights or a heater can all follow a timetable instead of your memory. The app handles the timing; the device handles the switching.

Schedules also make the hardware more useful than a plain timer, since you can revise them from the app rather than reaching behind a piece of furniture to adjust a dial.

Away Mode and the empty-house problem

Away Mode is the feature that stands out. The idea is to have your devices behave as though someone is home, which the developer presents as a deterrent to burglars. Lights that come on at plausible times are a good deal more convincing than a house that sits dark for a week.

I would treat this as one layer of a sensible routine rather than a guarantee. It is billed as a way to discourage a break-in, and it does that by removing the most obvious signal that nobody is around. Combined with scheduling, it gives a traveler a way to keep the place looking lived in without asking a neighbor to drop by.

For anyone who leaves home regularly, this is likely to be the reason to bother with the app at all, more so than the convenience of remote switching.

What you need before any of it works

The requirement here is hardware, and it is specific. Kasa Smart supports a defined list of TP-LINK devices: smart plugs including the HS100, HS110, HS107, KP200, KP400 and EP10; the plug minis HS103, HS105 and KP105; switches HS200, HS210 and HS220; the power strips HS300 and HS303; bulbs across the LB100, LB110, LB120, LB130, LB200 and LB230 lines plus the KL50, KL60, KL110, KL120 and KL130; cameras in the KC100, KC105, KC110, KC115, KC120, KC200, KC300, KC310, KC400, KC410S and KC420WS range; the SR20 smart router; and the RE270, RE370 and RE350K range extenders.

The path the developer sets out is straightforward: buy a compatible TP-LINK smart home device, download the app, and start from there. There is no way to use the app meaningfully without at least one of those devices, so the sensible order is to check the model against that list before buying anything.

Owners of smart devices from other brands will not find a use for this download. The app is free, carries no ads and offers no in-app purchases, so the only real cost is the hardware itself.

Households already on Kasa hardware

The clearest fit is a home that has committed to TP-LINK for its smart devices, whether that started with a single plug or grew into switches, bulbs and a camera. The more compatible devices you own, the more the app is doing for you, since one interface covers the lot.

It also suits people who travel or work late and want the house to look occupied, and renters who cannot rewire anything but can put a smart plug between the wall and a lamp. Anyone assembling a first smart home around a Kasa plug or bulb is the natural starting point, because the app is the free half of that purchase.

A 4.7 average across a large body of ratings points to an audience that has stuck with it. The app has been updated as recently as September 2026, which matters for anyone buying hardware now and expecting the software to keep pace with it.

A free companion for TP-LINK hardware

Kasa Smart does one job and does it for one brand. It adds, configures, monitors and controls compatible TP-LINK Kasa devices, runs schedules, and offers Away Mode for when the house is empty. It costs nothing and shows no ads, so the decision is really about the hardware, not the download.

If you own or plan to buy a device from that supported list, installing the app is the obvious next step, and the size of its audience suggests most people find it adequate for the task. If your smart home is built on other brands, this app has nothing to offer you.

My recommendation is straightforward: check your model against the compatibility list first, then install. For a household already running Kasa plugs, switches or bulbs, it is the piece that makes the rest of the setup usable from anywhere.