ASO Tools by AppFollow - Tools for App Store Optimization in App Store & Google Play
Asodesk - One solution to grow your app business
App Launch Checklist - Planning tool for launching your app successfully
ASO eBook by TheTool - App Store Optimization made easy
StorePreviewer - See how your app will look like on the App Store
ASO Tool Box by StoreMaven - Preview & download the creatives of any app, in any country