BiCiMon

BiCiMon is a minimal, client-side bicycle speedometer implemented as a progressive web app. It uses the browser Geolocation API to display real-time speed in a simple on-screen speedometer without storing user data or performing external tracking.

Key Features

• Real-time speed display using the browser Geolocation API
• Progressive Web App (PWA) ready for installation on mobile devices
• Privacy-focused: no analytics, no persistent data storage, and no external tracking
• Lightweight front-end built with HTML, JavaScript, Bulma CSS and Alpine.js (client-side only)
• Simple, distraction-free user interface optimized for mobile screens

Use Cases

• Measure and monitor real-time cycling speed on a smartphone without connecting to third-party services
• Quick on-bike speed reference for casual rides, training laps, or bike testing
• Use as an offline-capable speedometer when installed as a PWA on supported devices

Limitations and Considerations

• Accuracy depends on the device's GPS/positioning hardware and environmental conditions; short-term spikes or noise may occur
• Requires a secure context and device with Geolocation support; works best on modern mobile browsers
• App does not provide ride logging, maps, or persistent trip history by design

BiCiMon is a straightforward, privacy-oriented tool for riders who need a simple, on-device speedometer without cloud features or telemetry. It focuses on immediacy and minimalism rather than route tracking or advanced analytics.