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Monitor Velocity With GPS Speed Graph

Application Name: GPS Speed Graph

Description: Monitors and graphs current/moving/average velocity.

Publisher’s website: None

Cost: Free; $3.60 Plus version adds data logging, export capabilities.

Version/date reviewed: v.1.2  /  11-8-10

Phone/OS: Droid X / Android 2.2


Android Market link (mobile app only)
Android Market link (browser)

GPS Speed Graph monitors the GPS-derived velocity as a function of time, and plots it over a roughly ten-minute window.


Figure 1: The plotted data is only for the previous 10 minutes or so, with the more recent data at right; you can’t scroll the display to see older data. However, the maximum velocity (red), moving average(blue), and overall average (green) include all data from the time you started measurement, as do the times and total distance displayed at the bottom. You can pause measurements at any time, then either resume them or reset the display. The compass needle displays the GPS north direction, not the magnetic direction, so if you’re standing still it will always point up.

Other issues: The program will run in the background if you use the Back button, and the GPS will remain enabled. Remember to close the program with the Quit option in the menu, otherwise the GPS will keep running and can drain the battery. The limited data display is disappointing; while the Pro version can log data in KML/GPS/CSV formats, you can’t view it directly in the app.

Final thoughts: Nice graphic display, but the limited time window is a big minus. And given the many other programs that can log data for free, $3.60 for the Pro version with data logging seems a bit excessive. If you like the display, stick with the free version unless the paid version becomes cheaper.

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