The Treasury Yield Curve Tracker is a simple app that allows users to view and analyze the current shape of the US treasury yield curve. The app offers a range of customizable features including the ability to quickly adjust the time period and compare historical yield curve shapes side by side.

Key features:
- Quickly view the current shape (and individual maturity yields) of the U.S. Treasury yield curve
- View current interest rates for each treasury maturity
- Plot multiple curves at once to compare historical yield curve shapes
- Over 30 years worth of historical data
- Several customizable chart settings
- Toggle on/off individual bond and note maturities
- Export chart data
- Supported by all iOS, iPadOS devices
- Works great on MacOS (Apple silicon chip required)

In addition to providing access to the latest data, the app also includes basic information about the yield curve itself, explaining what it is, why it matters, and how it can be used to analyze the economy and predict future market trends. For those who are new to the world of finance, the app is an excellent introduction to the basics of bond investing and the yield curve.