Speedometer by Tim O's Studios, LLC represents a specialized utility application that leverages iOS device hardware to deliver real-time velocity measurements. Positioned in the navigation tools category, this app distinguishes itself through extreme minimalism and singular focus on speed detection without additional features that might complicate the user experience. The application's core functionality relies on the device's GPS and motion sensors to calculate and display current speed in three measurement units: miles per hour, kilometers per hour, and knots. The interface features prominently sized numerical indicators optimized for Retina displays, with visual transparency that correlates to measurement accuracy—less transparency indicates higher reliability. This design choice provides immediate visual feedback about data quality without requiring technical understanding from users. User experience prioritizes legibility and immediacy, with the entire screen dedicated to the speed readout. The absence of menus, settings screens, or configuration options makes the application immediately usable upon launch. Real-world usage patterns observed include mounting older iOS devices on bicycles, electric scooters, and vehicles as supplemental or replacement speedometers, particularly useful when conventional speedometers malfunction or when using non-standard transportation methods. User feedback consistently highlights the application's reliability and simplicity, with numerous five-star ratings praising its focused functionality. Reviewer iYuser (2025-01-20) noted the app served as an effective replacement for a broken truck speedometer, while Oxido61 (2025-06-20) specifically appreciated the clean interface and absence of advertisements. Multiple reviews mention successful implementation on electric scooters and bicycles, demonstrating practical utility across various transportation modes. The application's primary strength lies in its uncompromising focus on speed measurement without feature bloat, though this approach also represents its main limitation—users seeking additional functionality like trip tracking, maximum speed recording, or historical data will need alternative solutions. Accuracy remains dependent on device hardware quality and GPS signal strength, with the transparency indicator providing necessary context about reliability. Ideal use cases include emergency vehicle speedometer replacement, recreational vehicle speed monitoring, and educational demonstrations of velocity measurement principles.