WolframAlpha

The Wolfram|Alpha app gives you immediate access to the vast resources of the Wolfram|Alpha computational knowledge engine.

Drawing on 20+ years of development, 50,000+ built-in algorithms and 10+ trillion pieces of continually updated and curated data, the Wolfram|Alpha app is the ultimate replacement for almost any kind of calculator or reference book---and much more.

The breakthrough technology of Wolfram|Alpha for the first time lets you get expert-level answers to your specific free-form questions---complete with stunning dynamically generated visualizations and tables, and richer and deeper information than you imagined possible.

The Wolfram|Alpha app plugs directly into Wolfram|Alpha’s supercomputing cloud to deliver the unrivaled power of the Wolfram|Alpha knowledge engine to the mobile environment.

With the Wolfram|Alpha app you can instantly compute answers to questions across thousands of domains---from finance and food, to math and medicine, to stocks and spacecraft, to wordplay and weather.

The Wolfram|Alpha app brings all this to the iPhone, with an elegant native iPhone interface that includes a special notation keyboard, customized iPhone output, editable history and integration with maps and other iPhone services.