Google Play badges enable you to promote your apps with official branding in your online ads, promotional materials, or anywhere you want a link to your apps
In the form below, input your app’s package name or publisher name, choose the badge style, click Build my badge, then paste the HTML into your web content.
If you’re creating a promotional web page for your app, you should also use the Device Art Generator, which quickly wraps your screenshots in real device artwork.
For guidelines when using the Google Play badge and other brand assets, see the Brand Guidelines.
Google Play Badge Generator
http://developer.android.com/distribute/tools/promote/badges.html
iOS版はこちら