Store listing metadata
The text fields on your store page: name, subtitle, keywords, description, what's new. The copy the store indexes and shoppers skim.
See it
What it is
Metadata is every text field on your product page: name, subtitle, keyword field, promotional text, description, what's new, category, support URL. It does two jobs at once. It is what the store's search indexes, and it is the copy a skeptical human skims for four seconds before deciding to tap Get.
The slots are tight and platform-specific. iOS: 30-character app name, 30-character subtitle, 100-character keyword field, 170-character promotional text, 4000-character description. Play: 30-character title, 80-character short description, 4000-character full description. Write the first two lines of any description as if the rest is collapsed, because it is: everything past roughly three lines hides behind 'more'.
Gotcha: not all fields are editable whenever you want. On iOS the description and keywords are locked to a version, so fixing a typo means a new version submission, while promotional text can be swapped any time. Play lets you edit the listing on its own, but the change still goes through review. Plan copy edits like releases, not like website tweaks.
Ask AI for it
Write a complete store listing metadata set for my app: [paste description and target keywords]. Respect these limits exactly and print the character count after each field. iOS: app name (30), subtitle (30), keyword field (100, comma separated, no spaces after commas), promotional text (170), description (up to 4000). Play: title (30), short description (80), full description (up to 4000). Front-load the benefit in the first two lines of each description, use short paragraphs with no marketing filler, avoid claims like 'best' or '#1', and finish with a 'What's New' note for version 1.0.