TappLock is a padlock with a fingerprint sensor to open

Now that we're living in the age of sufficient fingerprint sensors, devices like the TappLock are on the rise. The creators of the TappLock have embedded a fingerprint sensor (aka a fingerprint reader) into a padlock, allowing the user to do away with keys altogether. This system, they suggest, will allow you to "never worry about losing your keys, forgetting your combination code, or getting your locks picked again." That is, until the device's sensor malfunctions. But that'll never happen, right?

If you're worried about not being able to get in to the lock if your fingerprints have (somehow, terribly) been burned away, don't fret. This lock works with Bluetooth access as well - meaning if you've got access to your smartphone, you can open the lock.
The app for the TappLock also allows you to share access. That means that other smartphones with the app could gain access to the lock as well, just as long as you've authorized them.
One bit that's unfortunate about the TappLock is its battery. It's the fact that it needs a battery to operate. You've got to make certain your lock is charged up at all times. One redeeming factor here is the smartphone connection, as the Tapp app gives you notifications of a low battery.

This lock uses an FPC fingerprint sensor. The TappLock uses a FPC 1020 sensor, one step below what you'll find on devices like the Nexus 6P, which uses a FPC 1025. If what we've seen on the Nexus 6P is any indicator, this fingerprint sensor on the TappLock is going to be extremely reliable and extremely accurate.
Have a peek at the lock on Indigogo - there are a couple of models coming through the crowdfunding campaign.