Create applications

Keep in mind the following attributes of a great app description:

The first 1-3 sentences of an app’s description should describe the main idea of your product. You can make this part more engaging by highlighting the problem that your app solves. These sentences shouldn't exceed a combined total of 225 characters.

Mention special achievements. Let your future users know if your app has been featured on TechCrunch, has won an award, or if Johnny Depp is talking about it.
The body of the description can include 2-3 paragraphs where you describe characteristics and details.

List several main functions with concise descriptions.
Talk about 'What’s new?' Inform customers about bug fixes, color changes in the side menu, or the addition of new features. This should be the final component of your app description.

App screenshots

The first screenshot is the most important. It describes what your app does. If you add text to your screenshots, use verbs.
Verbs push people to take action better than any other part of speech. Verbs are your friends.