I’ve had this problem when I first switched over to a Windows Phone early this year. I didn’t know the app ecosystem on the Windows Phone platform and admittedly that App search experience in the Windows Marketplace still has scope for improvement. Finding alternates to apps I used on the Android platform was a hit and miss experience.
Now Nokia and Xyologic have come up with an online site App #Switch to help users like us who are switching to Nokia Lumia phones or any other Windows Phone platform to search for alternates to apps which we are familiar with on the iOS and Android platforms. According to the site they state that the Windows Phone platform already has 46 of the 50 popular apps from the iOS and Android platforms. So you don’t have to go missing stuff you did on your older phones on your New Lumia phone.
Select Android or iPhone as your previous phone and search for your favorite app and the site provides suggestions for alternate apps available on the Windows Marketplace. They also provide the QR code which you can scan using the Bing visual search from the phone for an easy install.
You can check out their site at xyo.net/lumia and search for your favorite apps right away.