Lost your keys? How the person who finds them can let you know without knowing your address
Published 2026-11-14·4 min read·by AYA
You are standing at your front door with the shopping bags in your hands and you reach into your pocket. No keys. You run through the trip in your head: the car, the shop, the bench by the playground, the Christmas market where you took your gloves off. They could be anywhere.
The good thing about keys is that most people who find them would like to return them. The hard part is that a bunch of keys does not say who it belongs to. And if it did, that would be a bad idea.
The name and address dilemma
The classic solution is a small label on the keyring with a name and address. It makes it easy for an honest finder to drop the keys off. But it also makes it easy for everyone else to know exactly which door the keys open.
So most people leave it. The result is that found keys end up in a drawer at a café, at a shop or at a lost property office, where nobody knows who to call.
How AYA Keychain works
AYA Keychain is a 3D-printed tag with a QR code that you put on your keyring. The classic tag measures 42 x 42 mm and is 4.2 mm thick, so it is easy to spot without filling your pocket. It comes in three shapes at the same price: the classic tag, a purple figure and a star, which many children like to have on their first key.
When someone finds the keys, this is what happens:
- The finder scans the tag with their phone camera. No app is needed.
- The finder sees your name and a short text you wrote yourself, for example "Please leave them at reception".
- The finder can share their location, call you or send a message with a photo through the page.
- You are notified right away and can agree where the keys can be picked up.
The finder sees neither your phone number nor your address. The tag only says that the keys have an owner and gives an easy way to reach you.
The text for the finder
When you activate the tag, you can write a short text of up to 160 characters that the finder sees. It is useful for practical wishes: that the keys can be left at a particular shop, or that you would rather have a message than a call. The text is shown exactly as you write it.
Never write your address or codes in the text. The whole idea is that the finder can help you without knowing where you live.
When several of you share the keys
Many households have several sets of keys that change hands. You can share the tag with, for example, your partner, so you are both notified when someone finds the keys. It is also handy for a child's first key: the child has the keys, and the parent gets the message.
In the app you can see what the finder sees at any time, edit the text and pause the tag if you do not want to be contacted for a while.
Get started
- Put the tag on your keys and scan the QR code with your phone camera.
- Enter your name, so the finder knows whose keys they are.
- Write a text for the finder if you like.
- Add an email if your account does not have one, and activate.
The tag then appears in the app alongside your other AYA products.
12 months or lifetime
AYA Keychain does not expire by itself. When you buy it, you choose 12 months, where the first year is included in the price and the plan then renews once a year, or lifetime, where you pay once.
The current price in your currency is on the product page.
Small habits that help too
A QR tag makes it easier to get your keys back, but the best key is still the one that does not get lost. A fixed spot for keys by the door, a zipped pocket in your jacket and a spare key with a neighbour you trust make everyday life easier. The tag is for the days when the keys slip out of your pocket into the snow anyway, and a stranger is holding them and would like to help.
If you also have a wallet that should find its way home, take a look at AYA Card, a credit card sized card with the same idea.