AppTailAnalyze "calorie tracker" in the US App Store: popularity, competition and leading search results.AppTailFind the top five apps for "sleep tracker" in Sweden and compare their ratings.AppTailCompare the App Store opportunity for "meal planner" and "recipe organizer" in the UK.

AppTail helps iOS developers decide what to build, where to launch, and how to improve App Store visibility. Research niches across storefronts, compare competing apps and their ratings, explore keyword popularity and search results, and turn listing and review evidence into practical ASO recommendations. Works for pre-launch ideas as well as existing apps. Connect your AppTail account with OAuth. Data access and tracking limits depend on your plan. Public app data and competitor estimates are distinct from measured App Store Connect analytics for your connected apps. Competitor downloads and revenue, when available, are rolling 30-day estimates. AppTail does not expose a standalone numeric keyword difficulty score, cover Google Play research, or publish listing metadata. Recommendations are based on available data and do not guarantee rankings or downloads.