The App Store promotional text limit
App Store promotional text can be up to 170 characters. It shows at the top of your product page, above the description, and you can update it at any time without submitting a new version of the app. It is not indexed for search.
How to write a App Store promotional text
Use it for what is timely: a launch, a sale, a new feature, an award. Because it changes without review, it is the right place for anything that will be out of date in a month, which keeps the description evergreen.
Questions
What is the App Store promotional text character limit?
170 characters. It changes without a new app submission.
Does promotional text help App Store search?
No. Apple does not index it; it is there to convert visitors who are already on the page.
How often can I change promotional text?
Whenever you like. It updates without a new build or review.
Do spaces and emoji count?
Spaces and punctuation count as one character each. This checker counts each visible character once, so an emoji counts as one.
Is my text stored or sent anywhere?
No. The counting happens in your browser and nothing is uploaded.