About AppSigma
AppSigma is an App Store optimization and analytics product. It records where an app ranks for each tracked keyword once a day, watches competitor apps and turns user reviews into a list of issues and requests, aimed at developers who want to be found in App Store search.
Keyword tracking supports up to several hundred keywords per app, with movers, best-ever positions and popularity and difficulty scores on each row. A keyword gap view shows where a competitor ranks and the user does not, sorted by how winnable each keyword is. AI review analysis surfaces recurring complaints from low-star reviews.
The same data is available in a dashboard, over a REST API and through an MCP server for AI agents. AppSigma is a hosted commercial service. A free account can browse any app's data, while keyword tracking is part of the paid plans listed on its pricing page.
Key features
- Daily keyword rank tracking per app
- Keyword gap analysis against competitors
- Popularity and difficulty scores per keyword
- AI analysis of App Store reviews
- REST API for App Store data
- MCP server for AI agents
Good fit for
- →Monitoring App Store keyword rankings
- →Turning negative reviews into a fix list
- →Feeding app data to coding agents
- Tags
- aso
- app-store
- keyword-tracking
- reviews
- api
- mcp
- analytics
AppSigma: questions and answers
- What is AppSigma used for?
- AppSigma is an app Store analytics service that tracks keyword rankings daily, analyzes reviews with AI and exposes app data through a REST API and MCP server. It is a good fit for monitoring App Store keyword rankings, turning negative reviews into a fix list and feeding app data to coding agents.
- Is AppSigma free?
- Yes. AppSigma is free to use.
- Is AppSigma open source?
- No. AppSigma is proprietary (closed-source) software and can't be self-hosted. In the Marketing & SEO category, open-source options include Kutt, Dub and OpenSEO.
- What are some alternatives to AppSigma?
- AppSigma competes with ASO Meter, ASO Studio and Sensor Tower.
Open-source alternatives to AppSigma
See all
Kutt
Marketing & SEO
Free Modern URL Shortener.
MITvs Bitly★ 11k
Dub
Marketing & SEO
The modern link attribution platform. Loved by world-class marketing teams like Framer, Pe
OSSvs Bitly★ 25k
OpenSEO
Marketing & SEO
OpenSEO is the open source alternative to Ahrefs and Semrush. Keyword research, backlinks,
MITvs Semrush★ 22k
YOURLS
Marketing & SEO
🔗 The 𝘥𝘦 𝘧𝘢𝘤𝘵𝘰 standard, self hosted, powerful and customizable, URL shortener in
MITvs Bitly★ 12k
Sink
Marketing & SEO
⚡ A Simple, Speedy, Secure, and Serverless Link Shortener with Analytics, Running Entirely
AGPL-3.0vs Short.io★ 7.2kPolr
Marketing & SEO
:aerial_tramway: A modern, powerful, and robust URL shortener
GPL-2.0vs Rebrandly★ 5.1k
SaaS alternatives to AppSigma
See all
ASO Meter
Marketing & SEO
AI audits of App Store and Google Play listings with keyword, metadata and screenshot recommendations
SaaS
ASO Studio
Marketing & SEO
Mac app that shows which search terms to target for an iOS app and who ranks for them
SaaS
Sensor Tower
Analytics
Market intelligence platform with mobile app download, revenue and ad data
SaaS
Altis
Marketing & SEO
Native Mac app for App Store optimization with keyword tracking and opportunity analysis
SaaS
AppGrowKit
Marketing & SEO
App Store growth toolkit with screenshots, keyword rank tracking, reviews and reports
SaaS
AppSpy
Analytics
iOS app for tracking app rankings, prices and trends for competitor research
SaaS

