Sometimes you want APK file of your favorite Android Apps . There could be numerous reason such as their is no play services in your country, you are getting some error codes (error 919, error 920 etc) while downloading directly from Playstore on your device or you want to use your PC to download apps.
Google play doesn't allows to download apk from its website , but there are third party web apps which can leech APKs form play store for you.
One of such working APK downloader I found is by evozi. there could be many on Internet but this one works for me :) .
Using it is very simple. you just have to copy playstore link of the app you want to download and paste
in the box provided on the page http://apps.evozi.com/apk-downloader/ .
After that you have to click "Generate Download link" and you download will be ready in few seconds.
They also had a Chrome extension. Here is the link if you want to try (didn't worked for me).
Good thing is that you can also use it on your android device by using any browser (Hint: you can get app link by using share button in playstore)