13 ratings (4.077 average)
Take a walk, ride your bicycle, or drive your car. Connecting to multiple GPS satellites circling the globe, Proton gives you the most accurate speeds, displayed from MPH to knots.
• Accurate speed via GPS
• Average and top speed tracking
• See distance traveled
• Speed history display
• Easy to read UI
Last comments from Android Market
Free version is better. Paid version has a hard time with finding gps signal. But the free one works fine. Spd history, is silly.
Won't let me save my speed history