"Any use of the Google Play name in your marketing or communications must be accompanied by a legal attribution footer stating: 'Google Play and the Google Play logo are trademarks of Google LLC.'
The TM symbol should never be in the legal attribution footer.
When mentioning content available on Google Play always says "on Google Play"."
"In communications distributed only in the United States, the appropriate symbol (™, ℠, or ®) must follow each Apple trademark the first time it is mentioned in body copy. For example, use ... App Store®.
Include the credit lines only once in your communication or website, and place the credit lines wherever you provide legal notification. ... When the App Store badge is used, credit both Apple and the Apple Logo.
Use the following formats for distribution within the United States only:
__ and __ are registered trademarks of Apple Inc.
__ and __ are trademarks of Apple Inc."
Especially for Google Play and Apple App Store logos