Signals - Ride Better at Night is a lifestyle app designed for iPhone users, developed by Adish Padhani. This free app caters to the Health & Fitness category, offering a portable safety signal for biking, walking, running, and jogging. Users can control the signal frequency directly from their iPhone and, if available, from their Apple Watch.

One of the unique features of Signals is its rear (red) signal, which adjusts brightness based on the user's acceleration. This not only alerts others to speed changes but also optimizes battery life by automatically dimming. The app utilizes the accelerometer without accessing location data, further enhancing battery efficiency.