visit this site
to download any apk of your choice. this way you can still install that favourite app in case anything goes wrong
How to download Apps from the site
1.when you're at the install page on playstore, just copy the Link in the address bar.
2.Now go to the site above and paste the copied link in box provided.
3.Hit the 'generate link button' and the download link to your app will be available in seconds.
4.Click on the download button to download the app to your PC or phone.And thats all you're done
hope it helps