Aviationstack ◆
Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.

DataFrog (Developer Tools): DataFrog builds practical AI software products for real-world workflows, including browser extensions, developer tools, and automation. Pricing: Free & open-source. (data verified August 2026)
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DataFrog is a software company that designs and ships practical AI-powered tools for real-world workflows. Their portfolio includes browser extensions, developer tools, MCP services, web apps, and automation tools, all built to solve specific problems without unnecessary complexity.
DataFrog addresses the gap between AI capabilities and everyday productivity. Instead of generic AI assistants, DataFrog creates focused tools that integrate into existing workflows—like managing bookmarks, streamlining visa applications, inspecting web pages with AI, and connecting AI assistants to codebases.
DataFrog is ideal for developers, power users, and professionals who want AI to handle niche tasks without leaving their current tools. It's not for those looking for a general-purpose AI chatbot or a large all-in-one platform.
Use DataFrog's WideMark to organize and search bookmarks in Chrome's side panel. Use WTFAA for AI-powered web page inspection and design review. For developers, MCPxHub bridges Claude Desktop with popular IDEs, and N2N Memory gives AI project knowledge that follows the codebase.
Editorial score from our review methodology — not user ratings.
DataFrog pricing: Free & open-source. Billing model: Free.
Many DataFrog products are open-source and free to use, as seen on platforms like GitHub. Some may offer paid tiers for advanced features or support.
DataFrog also ships commercial web apps and browser extensions, with pricing details typically provided on individual product pages.
No specific pricing data was available in the scraped context. Check product pages for current pricing.