Hi, Clara Balton!
If you have enough budget, buy some traffic is a effective way to boost your app ranking and increase the installs of your app. Although it will took you much money, the result is fantastic and fast. While in addition to buy some traffic, there are many other factors to affect the traffic or installs of your app, like keywords, ratings and reviews.
Do keywords research: keywords is the main traffic resource of your app, because 65%-75% audiences would like to install an app through searching some relevant keywords. Therefore, it is necessary to optimize the keywords when you want to improve your app. Buy keywords search installs from a reliable app store optimization company is just a good way to help you achieve this goal.
Ratings and reviews: audience would like to choose one app with more positive reviews, indeed, the reviews also influence the installs of your app. So, you can buy some good ratings and positive reviews from a reliable app ratings and reviews provider to promote your app.
Wish these tips will be useful and good luck!
Edit by Admin: Promotional parts removed.
— modified on Mar 29, 2017, 11:07:08 AM