I used Market Search Tool to find a popular keyword. I made some changes to my title and description and now I’m ranking a little better for that keyword.
I know there use to be an app that would monitor your rankings for specific keywords on the play store. It would tell you if you dropped in ranking or have increased. This is much better than sitting there and counting which spot you are in. Unfortunately, I can’t find the app anymore.
I recommend using Distimo or AppAnnie. These are web-based tools to track your ranking on Google Play across many different countries and keywords. A great source of data especially if you’re looking to measure a specific increase.
I am using App Annie and App Figures. App Figures tells the ranking of apps in their daily email while App Annie helps in finding details like when was the first version of app released, in how many countries the app was featured and other awesome stats.