I haven't spent much time recently using mobile tools to check rankings & keywords for my application - mainly because in the past I would drive myself crazy about where I was ranking instead of just making my app better.
I spent a lot of time in the past checking on competitors & would improve my keywords based on simple research on App Annie. I also still from time to time use manual research searching each app store to see what's ranking for certain keywords & also to check competitors' user reviews for trends.
I also use the Play Dev Console for simple A/B testing & check user acquisition to see what keywords people are finding my app with. Then I can use what I learn there for my iOS app, since Apple only lets you update your app store listing when you publish an update.
How do you perform market analysis to find competitors to your app & improve your app discoverability in either/both app stores?
What tools/websites do you use (ie App Annie, Sensor Tower, Appfigures)? Are there any tools you couldn't live without?
Are there any 3rd party APIs/SDKs you implement directly into your app to help with growth or attribution tracking with deep links? (ie Firebase Dynamic Links, Branch.io, AppsFlyer)