Appstro vs ASOStacks
Appstro
appstro.dev
ASOStacks
asostacks.comSide by side
| Figure | Appstro | ASOStacks |
|---|---|---|
| Price from | Free | $19/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | — |
| Plans published | 1 | 3 |
| Spec score · App Store Optimization Software | 7.9 (#13) | 8.0 (#11) |
| Integrations | The MCP server exposes eight tools to Claude, Cursor, and other MCP clients, with no API key or sign-up required. | The homepage says ASOStacks is available as an MCP connector for Claude. |
| Purpose | Appstro provides App Store analytics and ASO tools for indie developers and marketing teams to research keywords, track competitors, read reviews, and compare rankings. | ASOStacks is a SaaS platform providing app store optimization tools for iOS and Android apps. |
| Security | Apple Ads private keys are encrypted with AES-256-GCM, are not returned to the browser, and are decrypted only in a server-side function. | The privacy policy says the service uses TLS encryption in transit, encrypted storage, access controls, and regular security reviews. |
| Support | Users can contact the one-developer operation through its contact form for bug reports, feature requests, general questions, or privacy requests. | The Studio plan includes priority support. |
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.