Route Choice Logger

Route Choice Logger is a precision GNSS/GPS logging tool for anyone who needs raw, detailed location and satellite data — drivers comparing routes, researchers, surveyors, or anyone curious about the accuracy of their device's GPS chip.

WHAT IT DOES
Start a logging session and the app records a new row every second of your trip, capturing:
- Latitude, longitude, altitude, speed, and bearing
- Distance travelled and speed accuracy
- Raw GNSS satellite measurements — signal strength (Cn0), satellites in view vs. used in fix, elevation and azimuth per satellite
- Detailed clock and measurement data for advanced analysis
- An optional phone number field, saved as the first column, so you can tag logs to a driver or device

Every session is saved as a clean, ready-to-use CSV file — no manual export steps required.

BUILT-IN LOG MANAGEMENT
No more digging through a file manager to find your data. Open "My Logs" from the menu to:
- See every log file you've recorded, with file size and timestamp
- View a log's contents right inside the app
- Share any log (or all of them at once) directly to email, cloud storage, or any other app
- Delete logs you no longer need

WHY GNSS DETAIL MATTERS
Most map apps hide the raw numbers behind a blue dot. Route Choice Logger shows you what your phone's GPS chip is actually seeing — satellite count, signal quality, and fix accuracy — so you can understand exactly how reliable your location data really is on a given route, at a given time, or in a given environment (urban canyon, tunnel approach, rural area, and so on).

PRIVACY-FIRST BY DESIGN
All logged data stays on your device. Nothing is uploaded to a server, and there's no analytics or advertising tracking built into the app. You decide if and when to share a log file, and with whom.

WHO IT'S FOR
- Delivery and rideshare drivers comparing route options and GPS reliability
- Students and researchers studying GNSS accuracy
- Surveyors and field technicians needing raw positioning data
- Anyone who wants a permanent, exportable record of their GPS trips

Route Choice Logger is built for people who want the real numbers behind their location — not just a dot on a map.