Fingerprint recognition is becoming more and more common on phones, and now here's a padlock that uses the same tech.
Tapp features a small sensor on the front. Register your fingerprint as you would with the Touch ID on the iPhone, and you'll be able to unlock it just by touching it.
It unlocks in 0.8 seconds, which is very quick indeed. There's an alarm built in that sounds if the lock is cut or if someone tries to open it who isn't authorised.
You can grant someone else access to it using the app on your phone, however. So if you've left something in a locker for someone, they can unlock it when you allow them. You can set the time and date that each lock can be accessed, and by who, so you always have full control.
You can register up to 200 fingerprints, which should be plenty. And you can revoke someone's privileges at the touch of a button. Satisfying.
It sends you notifications like when the battery is low, though the battery lasts a whopping three years on one charge. It also doubles as a portable charger for your phone, and it's made of steel, so should be nice and secure.
It's passed its funding goal and still has 15 days to go. Pledge $39 (£28) and it can be yours on an early bird when it ships in November.