ASOStacks vs ASOTools
ASOStacks
asostacks.com
ASOTools
asotools.ioSide by side
| Figure | ASOStacks | ASOTools |
|---|---|---|
| Price from | $19/mo | $9/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | — | Yes |
| Plans published | 3 | 4 |
| Spec score · App Store Optimization Software | 8.0 (#11) | 8.6 (#4) |
| Keyword research | It scores up to 20 keywords across 5 countries at once using popularity, seven-factor difficulty, and opportunity scores. | Its keyword tools provide search volume, keyword difficulty, popularity, app keyword coverage, and rankings. |
| Purpose | ASOStacks is a SaaS platform providing app store optimization tools for iOS and Android apps. | ASOTools provides app store optimization and app data tools intended to help iOS and Android app developers grow app downloads. |
| Security | The privacy policy says the service uses TLS encryption in transit, encrypted storage, access controls, and regular security reviews. | The homepage states that user data is transmitted with end-to-end encryption and that ASOTools collects and transports data in compliance with GDPR. |
| Support | The Studio plan includes priority support. | The FAQ directs users with further questions to contact the company through online chat. |
Plans
In their own words
ASOStacks
ASOStacks is a web and mobile SaaS platform for optimizing app store listings for iOS and Android apps. Its keyword research scores as many as 20 terms across five countries using popularity, difficulty, and opportunity measures. It automatically checks tracked keyword rankings daily at 6:00 UTC and provides history, changes, and sparklines. The Country Opportunity Finder scans 30 App Store and Google Play markets for a keyword, while download estimates cover positions 1 through 20 using TTR curves. Per-keyword competitor analysis includes up to 25 competitors, with ratings, review velocity, market age, publisher diversity, and tier analysis. It uses publicly available metadata, ratings, and reviews from Apple App Store and Google Play. ASOStacks also offers an MCP connector for Claude, and says no API keys are needed. The free plan is free; Pro costs $19 a month and Studio costs $49 a month. Studio includes priority support, while its API access is listed as coming soon.
ASOTools
ASOTools is an app store optimization and app data service for developers working to grow downloads on iOS and Android. Its analytics cover app details, localized product previews, developer profiles, changes in ratings and reviews, download trends, and estimated revenue. Keyword tools for Google Play and the App Store show search volume, difficulty, popularity, coverage, rankings, and suggestions. Market research includes download and revenue rankings by country and category, plus store charts and trends. ASOTools says its coverage spans 46 countries and 56 categories. The service offers web access, an API, and a free Chrome extension for Google Play; the extension displays marketing metrics and checks up to 10 top-ranked keywords per app. The free plan allows three search queries daily. Basic is $9 a month, Growth is $59 a month, and Business is $299 a month. Those plans raise search and detail-view limits, with tracking and ranking data varying by tier.