Don’t take your safety for granted. These apps, services, and gadgets will help you communicate your location to trusted contacts and get help should trouble arise.

If you’ve learned anything in our media-saturated, 24-hour news cycle world, it’s that life is inherently dangerous. People who seek to do you harm await at every corner, and you’re probably helpless before the onslaught.

First of all, stop dwelling on the doom and gloom—the world is less dangerous then ever before. But it doesn’t hurt to be prepared—especially if you’re heading off to school.

Since you’re a very modern person, there’s a chance you’ve surrounded yourself with technology. Guess what? It can help. There are a number of ways to get quick assistance from authorities and friends using your tech. Here are a few readily available options, and a few you should consider investing in if you’re really worried they’re all out to get you.