Wink!

Wink! is a completely private messenger app that allows you to send and receive photos in a way that is very similar to Snapchat, while also allowing you to add filters along the lines of Instagram.

It's very easy to start using Wink! as, unlike with other apps, you don't have to add any contacts. Instead, you just have to include your telephone number (which you have to do to register) and you can start sending photos to anyone in your address book.

Anyway, the best thing about Wink! is that you can upload your photos just like you would with Instagram, but only share them with your friends. So, they can see the photographs that you've uploaded and respond to you privately if they want to.

Wink! is a relatively interesting app that you can use to share photographs with your friends, combining the best of Snapchat and Instagram. The only thing that's missing is for more people to start using it.