Astro

Astro is a desktop application for Mac that helps app developers improve their visibility on the Apple App Store. It focuses on App Store Optimization (ASO) by letting you track how your app ranks for specific keywords, discover what potential customers are searching for, and monitor your app's performance across more than 60 different country-specific app stores. The goal is to replace guesswork with data, so you know exactly which keywords to include in your app's title, subtitle, and description to get more downloads.

The tool works by pulling popularity and competition data directly from Apple Search Ads. It updates your keyword rankings daily and provides historical graphs to track progress. A standout feature is its integration with the DeepL translation API, which lets you hover over any keyword to see its English translation instantly—a big help for optimizing apps in multiple languages. Unlike many SaaS competitors, Astro uses a simple, fixed annual subscription that allows you to track an unlimited number of apps and keywords without extra fees.

Astro is built for iOS app developers, particularly indie creators and small teams who need an affordable, straightforward ASO tool. It's most useful for someone who has published an app and wants to systematically improve its search ranking. Real-world use includes identifying low-competition, high-search keywords to target, keeping an eye on how app updates affect your search position, and understanding where your app is getting new reviews globally.