At this moment, this impressing application can’t be downloaded for Windows Phone so we have to wait until the creators of this app launch Retrica for Windows phone.
But don’t worry, there are lots of apps like Retrica on the Windows Phone Store. First of all, you need to go to your app store or just access to the Windows phone app official site to download the apps, there you need to login with your account to recognize your device.
One of the best alternatives for Retrica is called CamWow. You can download it from the WP store for free. Once installed, then you can start using the app with the bunch of great features to edit and add effects to your pictures. Also remember that is app is capable to set up your filters and images effects even before taking the picture, which is something really cool.
We hope that that you can download Retrica manually from the Windows phone web and install it on your device soon.