There are a bazillion apps out there, so we've sifted through the pages to find the best for hooking up, locking up, and keeping the connection alive! 

+ This FREE app has a three-tier protection system including an initial password to open the app, a decoy password which launches a different set of photos (a big middle finger, perhaps?), and a break-in report which includes a mugshot of the intruder. You can store photos and videos. The newest upgrade has TouchID support and you can protect gifs too.

-It doesn't have a discrete cover—i.e. if someone knows what the app is, they'll know you're hiding naughty pics.

+ Basically, this app has the same awesome features the Private Photo Vault has, but this one disguises itself as the 'Utilities' app.

-There is no way to reset your password. When you create your password, you will be sent an email with a hint, so make it an informative hint.

+ Again, same features as the other two apps, but here, you can have individual password-protected galleries. The basic version is free, but if you sign up, your photos are automatically backed up online.

-It's only available for Android devices.

+ It consolidates your entire mobile relationship into one place. This app has texting, drawing games, a cutesy thumbkiss that when the other partner puts their thumb on the image of your thumb, it vibrates (vomit-inducing, I know, but it's actually quite sweet when you're partner is out of town/long-distance relationships). My favorite parts are (1) the lists: instead of having notes and ideas posted in various places, you can put all your date ideas, dream vacations, and restaurants to try in one place, and (2) the photo timeline: every photo in your texts will be saved here, so again, no sifting for that one picture that one time at that bar and it was funny, you know? Oh, and it's free. The new location tracker comes off freaky, but apparently, you can only access your partner's location if they push it to you (and you only can see it for 30 minutes) which is cool if you want to meet somewhere and see how far away they are.

- My only real irk is the interface of the messaging part because it's backwards to the iPhone. Your sent messages pop up on the left instead of the right, which doesn't seem like a big deal, but I found it annoying. Though password protected, I'd have to enter it in every time or keep it unlocked, so if I used it to keep racy photos, it wouldn't be safe.

+ It has the messaging, photo and planning features just like Couple, but the user interface is much more simple and effective to me. And with this app, you can add images to your list. 

-The app attempts to give the essence of presence, but comes off a bit cheesier (to me!) than other apps. You put the phone to your lips and your heart and it vibrates letting the other person know they've received your contact. The basic plan is free, but if you want to be able to sync your Google calendar, send up to 30 second video clips, and add images from the web to your lists, you'll have to cough up almost $2 a month. Life is hard, I know.

+ This app turns texting into touching. Which sounds hokey, but when you're in a long distance relationship, or just want to see the movement of someone's fingers, it's sweet. The app shows where your partners fingertips are touching while they are texting you. When you match your finger up there is a light vibration adding a visceral feeling.

- It's not available yet, so we have no idea. You can go to their site to be notified when it's ready this year!

+ Ok this app is shallow but it's sort of natural in the way you decide things at first glance (attractiveness, etc). It's addictive and a good laugh. Seriously. The things people say—OH MY LANTA! Swipe left.

- It's super casual sex-focused, so don't go looking for love. Or do! Who am I to tell you anything.

+ There are SO MANY men. Literally. There are millions of active users. And they're all near you since it uses geo-location. People like to get right to the point on this app, so it teaches you to step up and say what you want.

-The geo-location could be dangerous. There are quite a few youngins (like under 18). It's for gay, bi, and curious men, sorry ladies.

+ Don't want to go on a date? No problem! This app markets itself as the "non-dating app." Oh, and it's a swinging app. You can upload nakey pics and blur the parts of yourself they will soon see anyway. When you like someone, you click on a button of two people having sex. They really are honest about it!

-Again, it uses GPS which could potentially be dangerous. Apple and Google Play banned it, so you have to go to their website (is that a con? I don't know). Doesn't seem to have too many real users.