Asodesk - One solution to grow your app business
ASO Tools by AppFollow - Tools for App Store Optimization in App Store & Google Play
Where is My Website - Highlight your site in Google and keep eye on Competitors
App Launch Checklist - Planning tool for launching your app successfully
OnCrawl SEO Chrome extension - Quickly but deeply audit your onsite SEO performances.
StorePreviewer - See how your app will look like on the App Store