Question: I'm looking for a tool that offers real-time alerts and notifications for changes in the app market, can you suggest one?

data.ai is a powerful AI-powered information retrieval system that aggregates data from multiple signals to provide insights for app development, go-to-market strategy and competitive analysis. It has real-time alerts, customizable experiences, team collaboration and cloud data warehouse integration, so it's good for product management, marketing and strategy teams.

Another good option is AppstoreSpy. It's a broad mobile market intelligence tool that analyzes millions of apps on the Google Play Store and Apple App Store. Features include AppTimeline to track changes to competitor apps, Keywords Finder to automate keyword searches, and a real-time analytics tool to keep tabs on market trends.

If you're interested in tracking start-up and development activity, LemonRocks offers a real-time alert system called Signals that uses AI-boosted screening and multi-platform integration to alert you when things of interest happen. It also offers a sophisticated mapping system for sanctions and compliance, so it's good for venture capitalists, angel investors and start-ups.