If you are looking for an App Store Optimization tool free or at an affordable price, then TheTool might be your best choice.
TheTool counts Pixonic, ABA English, Ten Square Games, Privalia, and many other big names amongst its clients. The best thing about this software is that it provides an ASO score, using which you can analyze the position of your app in the market and decide how well your app is optimized.
Since keywords play an integral part in increasing the visibility of the app, TheTool ensures that Keyword research is as simple and quick as possible for its users. With this robust ASO tool, you can get suggestions for keywords, their traffic, and track difficulty.