KeywordTool.io - KeywordTool.io is the best FREE alternative to Google Keyword Planner and Ubersuggest. It uses Google's autocomplete feature to get over 750+ long-tail keywords for any given query.
App in Review - Find out where your app is in the review queue
Keyword Surfer - Get search volumes & keyword data directly in Google.
Reviews for iOS - Keep track of your App Store reviews
Ubersuggest - Want more traffic? Ubersuggest shows you how to win the game of SEO. Just type in a domain or a keyword to get started.
App Review Times - Find out the average app review times for iOS & Mac apps