Spoke Tension Gauge is a handy iPhone application developed by Douglas Pepelko that simplifies the process of building or truing wheels. By utilizing sound, this app provides a cost-effective alternative to traditional handheld tools. Pluck a spoke, and the app instantly displays its tension on the screen, making wheel maintenance a breeze.

With the ability to save multiple wheels to iCloud for easy access across your devices, Spoke Tension Gauge offers convenience and flexibility. The 'Wheel Builder' view provides a visual representation of your wheel's tension, enhancing the user experience. Moreover, the app supports various spoke sizes, shapes, and materials, ensuring compatibility with a wide range of wheel setups. Unlike traditional mechanical tension gauges with limited precision, this app offers high accuracy down to 1 kgf, making it a reliable tool for wheel enthusiasts.