1. 255 characters define your app
That’s roughly the number of characters a user gets to see on your app’s profile page on the Apple app store without having to tap on the "more" link to read the extended description.
2. Form of narration
The users should be able to instantly picture themselves being able to use the app and value its features simply by reading about them. A simpler way to do this would be to imagine yourself as the user and describe the journey you’d take as a passionate user of the app.
3. Describe the problem and solution
Every successful product or app solves a problem for customers. Sometimes, the pain points are obvious, but at times, they are something that you have to make your customers think about.
4. Highlight key features
Write about features that showcase your core offering or those that form the positioning of your app. If your app is positioned as the best note taking app -- focus only on those set of features. Let the users discover the remaining features within the app.Users connect best with one specific use case.
5. Credibility statements
Along the way, you can add download numbers, mention if you’ve got featured on the app store or mention any awards won. Alternatively, feel free to add a few customer testimonials that you can source manually.
Treat your app store description as the product’s advertising copy where you have to get your customers emotionally excited about downloading and using the product.