Work out what a lost set actually costs you. A locksmith callout. A lock change on the front door. New copies cut for the cleaner, the handyman, the co-host and the spare. A gap in the calendar while it's sorted.

Most hosts put that somewhere between $200 and $400 every time it happens. And it isn't a once-a-year problem if you're running more than one unit.

A Spotminders Rechargeable Smart Tag on the ring costs $23 when you buy five. It pays for itself the first time a guest says "I can't find the keys."

Here's what hosts find out after the first panic. The keys are almost never gone. They're down the side of the sofa. In a coat pocket on the back of a door. In a kitchen drawer. In the bin bag by the door that nobody has taken out yet.

Guests don't lose keys because they're careless. They lose them because they put them down in an apartment they don't know, while carrying bags.

Ring the tag from your phone and it beeps and flashes a bright light. The sound gets your guest to the right room. The light shows them the exact spot, under furniture, in a bag, in the dark.

The expensive part of a lost key isn't always the lock. It's you, in the car, at nine at night, going to search someone else's holiday apartment.

The tag runs on Apple's Find My network, so you can see where the keys were last picked up before you decide to go anywhere. Still in the apartment? Talk the guest through ringing them. Left at a restaurant two streets away? Now you know who to call.

You stop guessing, and you stop driving across town to find a set of keys that was behind a cushion.

Keys don't just go missing with guests. They go missing between your cleaner, your handyman and whoever did the last check-in.

Each tag can be shared with up to five people. Your cleaner can find the set she had this morning without messaging you. Your co-host can check a unit without a phone call. Nobody has to wait on you to answer.

It takes one group chat question out of every single turnover.

If you run more than one unit, every set of keys looks the same. Same ring, same brass, same three keys.

Put a tag on each one and name it in Find My. Unit 2. Unit 3. The spare. The cleaner's set. The parking fob.

Now you're not emptying a drawer onto the table before every check-in, and you know at a glance which set is where. Hosts tell us this is the part they didn't expect to care about and then use every day.

This is where most hosts give up on tracking keys. You put a tag on every set, and six months later half of them are dead and you have no idea which ones.

The Smart Tag has no coin cells, ever. It charges over USB-C in about ninety minutes and runs for roughly a year. You can see the battery level on your phone, so you top them up on your own schedule, not on the day a guest is locked out.

And with five tags you get a USB-C charger in the box, free.

A key tag on a rental property doesn't live a gentle life. Lockbox on an outside wall. Dropped in a driveway. In a cleaner's wet coat pocket in November.

The Smart Tag has an aluminium frame with a ceramic coating, and it's rain and dust resistant.

The part that matters most for hosts: the keyring hole is moulded straight into the frame. Not a plastic holder bought separately, not something glued on. There's nothing to snap off and lose in a lockbox.

It happens on every checkout morning somewhere. The guest means to drop the keys in the lockbox, puts them in a jacket instead, and remembers at the gate.

Instead of finding out when your cleaner arrives to a locked unit, you open Find My and see where the keys went. If they're moving away from the property, you can message the guest while they're still in the taxi.

The difference between catching that at eleven in the morning and at four in the afternoon is usually the difference between a phone call and a locksmith.

We ran it the way a host would.

Without a tag, two lost sets in a season
Locksmith callout and lock change, twice: ~$400
New copies cut for cleaner, handyman and spare: ~$60
Two evenings of your own time driving over and searching: priceless, but not free
Total: $460+ and two ruined evenings

With tags on every set
Five Smart Tags: $117 (Buy 3 Get 2 Free)
Batteries over the year: $0
Subscription: $0
Total: $117, and most "lost" sets found from your phone in under a minute

One avoided lock change covers the whole set, twice over.

Put them on every set, run a full season of turnovers, and if they haven't saved you a single callout, send us an email and get every penny back. No hassle, no questions asked.

Setup takes under a minute per tag and there's no app to download: it's the Find My app already on your iPhone. MFi certified, officially approved by Apple, and no subscription, ever.

Over 100,000 customers already use Spotminders, rated Excellent on Trustpilot.