Map Telemetry

Map Telemetry

GPS & Road Sensor Data Logger

1 ratings
Free

Rating summary

Details

Released
April 29, 2026
Updated
May 24, 2026

Features

Map Telemetry screenshot #1 for iPhone
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About

This app transforms your iPhone into a professional GPS and sensor data logger, publishing live telemetry over MQTT. It offers advanced road mapping with grade and roughness data, real-time traffic cameras, and road alerts for enhanced navigation.

✓Live GPS and sensor telemetry publishing via MQTT
✓Road mapping with grade and roughness data
✓Real-time traffic cameras and road alerts
✓Turn-by-turn navigation with auto-rerouting
✓Vehicle profile-aware routing
✓CarPlay integration
✓Automatic road event detection
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What's New in Map Telemetry

1.2.1

May 24, 2026

Version 1.2.1 is a major update built around full turn-by-turn navigation, with CarPlay improvements, smarter traffic alerts, and a long list of refinements. TURN-BY-TURN NAVIGATION - Full turn-by-turn navigation with spoken voice guidance. - A Go Here preview shows driving distance, heading, and ETA before you commit to a route. - Search with saved Places — Home, Work, favorites, and recent searches — and results now favor your area. - Lane guidance and exit numbers in the turn banner. - A live turn banner with remaining distance and ETA that updates as you drive, plus a lock-screen banner and an in-app heads-up about 15 seconds before each maneuver. - Step tracking reworked for reliability through wide intersections, off-ramps, missed turns, red lights, and stop-and-go traffic. - Choose any iOS system voice and audition it before selecting. CARPLAY - An upcoming-maneuver NEXT row on the CarPlay screen. - A scrollable Report incident list with Cancel always reachable — and the list now stays on screen reliably. - Distance to the next step stays accurate through wide intersections and off-ramps. - Music resumes faster after each spoken instruction. SMARTER TRAFFIC ALERTS - Incidents anywhere along a planned route surface immediately, sorted by distance ahead. - Distant accidents are hidden because they usually clear before you arrive; construction, closures, and hazards are always shown. ACCURATE SPEED LIMITS - The speed-limit badge uses your heading to pick the correct road, so it stays accurate on overpasses, at intersections, and on roads running parallel to a highway. - A flashing speed-limit alert with a threshold you can set. TRIPS AND RECORDING - A Past Trips archive keeps every recording you finish, browseable any time. - Choose Cloud plus local or Local only when you start a recording. - Auto-stop after the vehicle has been stationary, with Off, 1, 2, and 4 hour options. - An end-of-trip summary with distance, duration, speeds, climb, and a driving score. MAPS AND CUSTOMIZATION - Apple Maps photoreal Flyover with 3D buildings and terrain on iOS 16 and later. - An automatic dark and light theme that follows sunset and sunrise. - Adjustable road-map color thresholds, elevation profiles for traced routes, and saved routes. - Many new international traffic feeds covering the UK, Australia, New Zealand, Finland, Norway, the Netherlands, and more. RELIABILITY AND PRIVACY - Publish only while recording now reliably stops all background data sharing when it is turned off. - Community hazard and pothole reports again reach other devices in your group. - Trips are preserved completely, with no lost final seconds when you start fresh. - Broad security and stability hardening across data feeds, file imports, and background services.

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FAQ

What is Map Telemetry?

Map Telemetry turns your iPhone into a professional-grade GPS and sensor telemetry unit that publishes live data over MQTT. It offers advanced road mapping, real-time traffic cameras, and road alerts for enhanced navigation.

Is Map Telemetry free to use?

Yes, Map Telemetry is free to download and use. A subscription model is planned for a future update with Free, Standard, and Fleet tiers. Users who use the app before subscriptions launch will retain free access to all current features permanently.

What sensors does Map Telemetry use?

Map Telemetry uses GPS, accelerometer, gyroscope, barometer, and noise sensors. This data is published continuously via MQTT, even when the screen is off, including position, speed, altitude, and error metrics for high-accuracy workflows.

Can Map Telemetry record road grade and roughness?

Yes, Map Telemetry can record GPS traces with per-point road grade (slope %) and roughness (m/s²) sampled at maximum sensor rate. Results can be reviewed as a color-coded 3D route with toggleable grade and roughness overlays.

Does Map Telemetry support CarPlay?

Yes, Map Telemetry features a dedicated CarPlay dashboard with live telemetry, navigation, and quick actions. It displays upcoming directions and allows for incident reporting directly from the dashboard.

What transport modes are supported by Map Telemetry?

Map Telemetry supports five transport modes for road mapping: Driving, Walking, Cycling, Boat, or Train. This allows for tailored data collection and analysis based on your activity.

Does Map Telemetry have ads?

No, Map Telemetry does not contain advertisements. The app is free to download and use without any ad interruptions.

What is the update frequency for Map Telemetry?

Map Telemetry was last updated on May 24, 2026, with version 1.2.1. This indicates a recent update, suggesting ongoing development and support for the application.