GPS ACTIVE — LOGGING ROAD CONDITIONS

Map Road Conditions.
Your Server. Your Data.

A professional GPS and sensor logger for iPhone. Record road quality, detect driving events, and publish telemetry to a server you control — not ours.

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iOS 16.0+ · CarPlay · Background logging · No subscription · Free

⬤ LIVE 45.4215°N, 75.6972°W 62 km/h
Altitude (HAE)73.4 m
Road Grade+2.1 %
Roughness (RMS)0.38 m/s²
MQTTConnected
▲ Road Event — Pothole detected · 45.4218°N 75.6975°W
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Transparent by design

By default, telemetry is published to a secure MQTT service operated by the developer in Canada (AWS IoT, ca-central-1). No data is sold or shared with third parties. A future update will let you connect to your own MQTT server instead. See the Privacy Policy for full details, data retention, and your rights.

What it does

Everything you need to map and log road data

Built for field professionals, infrastructure teams, and anyone who needs ground-truth road condition data with full control over where it goes.

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Background Telemetry
GPS, accelerometer, gyroscope, barometer, and noise published over MQTT — even with the screen off. HAE, CE, and LE included in every GPS payload.
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Road Mapping
Record per-point road grade (slope %) and roughness (m/s²) at maximum sensor rate. Review as colour-coded 3D routes — toggle between grade and roughness overlays.
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Road Event Detection
Automatic detection of potholes, hard braking, hard acceleration, and swerve events using the device IMU. Events are timestamped and geotagged.
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Road Alerts
Real-time 511 road conditions for ON, QC, BC, and AB overlaid on the map. National NAAD emergency alerts included.
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CarPlay
Dedicated CarPlay dashboard with live telemetry readouts, navigation instructions, and full session control.
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Turn-by-Turn Navigation
Auto-advancing steps, live distance countdown, automatic off-route detection and rerouting. Supports operator-dispatched routes.
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2D & 3D Maps
MapLibre 2D and Apple Maps 3D with live position, heading-follow, and terrain. Long-press for Go Here, Add a Stop, or Report an Event.
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Precision GPS
HAE, circular error (CE), and linear error (LE) published in every GPS payload for high-accuracy mapping workflows.
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Export Anywhere
Share sessions and mapped routes as GPX, CSV, GeoJSON, or KML via AirDrop, Mail, or Files. Import GPX routes from AirDrop or Files.
GPX CSV GeoJSON KML MQTT AWS IoT

Architecture

Bring your own server

Maps Telemetry uses standard MQTT over TLS. Point it at any broker — AWS IoT, Mosquitto, HiveMQ, or your own. Devices self-provision on first launch with AWS IoT fleet provisioning. No registration, no cloud dependency on our end.

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AWS IoT Ready
Devices self-register with AWS IoT on first launch using a claim certificate. No manual device configuration required.
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mTLS Security
Mutual TLS authentication. Private keys stored in the iOS Keychain — never transmitted or backed up.