We build GPS & speed apps for iPhone — and free web tools anyone can use.

bithaus.tech (Unipessoal Lda) is a Portugal-based iOS studio. Our GPS Speedometer for iPhone has passed 6.32M downloads since 2014. We also ship free browser tools that need no install — see our tools.

Our Apps

Speedometer App Icon

Speedometer Speed Tracker GPS

GPS Speed Tracker for iPhone with real-time speed monitoring and HUD display

Speedometer Screenshot 1 Speedometer Screenshot 2 Speedometer Screenshot 3
Speed Tracker App Icon

Digital Speed GPS Speedometer

Turn your device into a trip companion for tracking speed, distance, and route details

Speed Tracker Screenshot 1 Speed Tracker Screenshot 2 Speed Tracker Screenshot 3
GPX Viewer App Icon

GPX Viewer

Beta

Open, visualize and analyze your GPS tracks with interactive maps, elevation profiles, and speed analysis

GPX Viewer Landing Page

About the studio

bithaus.tech is a small, independent studio — the same people have been building and supporting these apps since 2014. GPS Speedometer holds a 4.7★ average across 136K+ App Store ratings, and everything we ship follows the same rules: no accounts, minimal data collection, and support answered by the developers themselves. Alongside the two iPhone speedometers we're testing GPX Viewer in beta and shipping small browser utilities like an elevation checker. Read more about the studio or try the free web tools.