I got this Wifi Electronic Door Lock by EPIC-LEGENDS to be able to lock up my apartment. I’m not super tech-savvy, but I was able to get this one set up in just a few minutes. I was happy to see that I could also set it up using my phone. As long as you have the app, you can unlock or lock your door from anywhere. The door lock is really easy to install, and it comes with everything you need to put it in. I installed it on my front door, so I have two keys to use. I’m not sure how it would work if you only had one key for your door.