Tinder and other dating apps might have been created with adults as the target users, but studies have shown that teenagers feel very comfortable with "swiping right" as well. Our friends at Common Sense Media [1] are here to share the facts about Tinder and its contemporaries, which will help you enter into a dialogue with your child if they're using these apps.

Unless you're single, you might not be familiar with dating apps such as Tinder, with which users can quickly swipe through prospective dates. But it's likely your teen knows all about these apps [2] — even though they're mostly designed for adults. According to the company's own estimates, about seven percent of Tinder's users are age 13 to 17. [3]

Although adults use these apps both for casual hookups and for scouting out more long-term relationships, they're risky for teens. For starters, although many of the apps aren't intended for them, it's easy for savvy teens to get around registration-related age restrictions. Secondly, adults can pose as teens and vice versa. Location sharing increases the potential for a real-life meeting; less dangerous but still troubling is the heavy emphasis on looks as a basis for judgment.

It's possible that teens are only testing boundaries with these apps. Many are eager to be on the same wavelength as their 20-something counterparts, and the prospect of meeting someone outside their social circles is exciting. And with so much of their social lives happening online, teens feel comfortable using apps to meet people. But these apps are not a safe way for them to explore dating. A Virginia Tech college student allegedly abducted and killed a 13-year-old girl [4] he may have met through Kik or a Facebook teen dating group.

If you learn your teen is using dating apps, take the opportunity to talk about using social media safely and responsibly — and discuss what's out of bounds. Keep the lines of communication open: talk to them about how they approach dating and relationships and how to create a healthy, fulfilling one — and note that these usually don't start with a swipe.

Below are some of the adult dating apps that teens are using.

Badoo. This adults-only app [5] for online-dating-style social networking boasts more than 200 million users worldwide. The app (and the companion desktop version) identifies the location of a user by tracking his or her device's location and then matches pictures and profiles of potentially thousands of people the user could contact in the surrounding area.

What parents need to know. Badoo is definitely not for kids: its policy requests that no photos of anyone under 18 be posted. However, content isn't moderated, and lots of sexual images show up as you browse.

Hot or Not. This app started as a website [6] over 10 years ago and has gone through lots of iterations. It currently exists as a location-based app that shows you the hottest — or most-attractive-per-the-rating-system — people nearby.

What parents need to know. A user must first set up an account of his own, with photos — and must verify his identity with a working email address or a Facebook account and a mobile phone number. The site says it will not accept a profile unless the user is 13 or older and that users 13 to 17 can't chat or share photos with users older than 17 — but there's no age-verification process.

Kik. Part text-messaging app, part social network, Kik [7] gives users the opportunity to talk to both friends and strangers. Kids like it because it's free, it's popular with their friends, and they can quickly and efficiently add cool Web content — memes, viral videos, images, and more — to their texts without any message or character limits. It also contains many mini apps, most of which aren't sanctioned or created by Kik.

What parents need to know. Although not an official hookup site, Kik is known for creating hookup opportunities. Third-party apps embedded within Kik, including a Tinder-like mini app, are difficult for parents to regulate.

MeetMe. MeetMe's [8] tagline, "Chat and Meet New People," says it all. Although not marketed as a dating app, MeetMe does have a Match feature in which users can "secretly admire" others, and its large user base means fast-paced communication and guaranteed attention. Users can chat with whomever's online, as well as search locally, opening the door for potential trouble.

What parents need to know. First and last name, age, and zip code are requested at registration, or you can log in using a Facebook account. The app also asks for permission to use location services on your teens' mobile devices, meaning they can find the closest matches wherever they go.

Skout. This flirting app [9] allows users to sign up as a teen or an adult. They're then placed in the appropriate peer group, where they can post to a feed, comment on others' posts, add pictures, and chat. They'll get notifications when other users near their geographic area join, and they can search other areas by cashing in points. They receive notifications when someone "checks" them out but must pay points to see who it is.

What parents need to know. If your teens are going to use a dating app, Skout is probably the safest choice, if only because it has a teens-only section that seems to be moderated reasonably well. However, ages aren't verified, making it easy for a teen to say she's older than 18 and an adult to say she's younger.

Tinder. Tinder [10] is a photo and messaging dating app for browsing pictures of potential matches within a certain-mile radius of the user's location.

What parents need to know. You swipe right to "like" a photo or left to "pass." If a person whose photo you "liked" swipes "like" on your photo, too, the app allows you to message each other. Meeting up (and possibly hooking up) is pretty much the goal.

Check out other great posts from Common Sense Media:

• 15 Apps and Websites Kids Are Heading to After Facebook [11]
• Snapchat and 7 More Iffy Messaging Apps Teens Love [12]
• Alert! Digital Drama to Watch Out For This School Year [13]