Besides nice description, you also need nice app title, nice app icon and nice app screenshots.
About app marketing methods, there are so many promotion methods, such as social media, forums, blogs, cross promotion, aso, etc. Personally speaking, aso(app store optimization is the most efficient promotion method, because data shows that over 65% of app downloads are made through app stores browsing and search.
ASO is the abbreviation of “App Store Optimization”, it’s the process to optimize apps to rank higher in the app store’ search results. The higher the app ranks in the app stores’ search results, the more visibility for app potential users. Also, the more traffic to your app will be led. You can do it from the following aspects.
Choose right keywords
Keywords are the most important thing because that is exactly the word that users type in to search for the apps. When you’re selecting a keyword, you need to take keyword relevance, traffic, and competition into account.
Target keywords with low competition and lower search volumes first. After gaining the initial momentum, start using keywords with higher traffic and reasonable difficulty. They help your app stack up more downloads. Work your way up gradually as your app gets more popular.
Tips on keywords optimization:
[li]Use all 100 characters
[/li][li]Separate every keyword by a comma
[/li][li]Avoid space, articles and prepositions
[/li][li]Use singular OR plural, the easier one to rank for
[/li][li]Don’t repeat keyword
[/li][li]Use numbers instead of spelled out words
Add keywords to title
Data shows that adding keywords in title will increase your app’s ranking by 10.3%. And be sure to create an attractive title, which will increase the conversion rate.
You said that you already have a nice description, don’t forget add 4~5 keywords in your app descriptions, which helps to boost your app ranking in app stores.
Reduce app size
Ensure that you keep your app size below 5MB as it will result in better conversion thus prompting app stores to assume that it’s a good app.