- GPS Signal Quality Score — Every fix is scored 0–100 and graded Excellent / Good / Degraded / Unreliable, with plain-English explanations and recommendations.
- AR Location Overlay — Live GPS data (coordinates, altitude, accuracy, speed, heading, quality score) overlaid on the camera via ARKit. Save snapshots to your Camera Roll or record video.
- GPS Quality Home Screen Widget — Small and medium widgets showing live grade, score, and accuracy. Updated automatically on every GPS fix.
- WeatherKit Integration — Live weather conditions (temperature, wind, humidity, UV index) in the Overview tab, with GPS relevance context.
- Location Intelligence — Clusters visit history to identify frequent locations and time-of-day patterns. Flags unfamiliar times and GPS/motion speed conflicts.
- Sensor Anomaly Detection — Rolling statistical analysis of magnetometer and accelerometer data detects interference, magnetic bias, and GPS/motion discrepancies.
- Movement Trail on Map — The Overview map draws a blue polyline of your recent location history.
- HealthKit Step Comparison — Cross-validates CoreMotion step count against HealthKit's authoritative count to diagnose discrepancies.
- Cellular Radio & Carrier Info — Shows 5G/LTE/3G radio type and carrier name, with context on how radio type affects GPS fix speed.
- Network Depth — Distinguishes Low Data Mode and personal hotspot connections, both of which impact A-GPS performance.
- Geofence Entry/Exit Notifications — Local notifications when you enter or exit a monitored region, for hands-free geofence testing.
- Sensor Recording — Records accelerometer data in efficient batches using CMSensorRecorder while the device is inactive.

Tons of bug fixes +

- Location Precision (iOS 14+) — shows full vs. reduced accuracy, with a button to request temporary precise location
- Dual Altitude (iOS 15+) — displays both MSL and WGS84 ellipsoidal altitude side by side
- CLMonitor (iOS 17+) — async/await geofencing via Swift's AsyncSequence event stream
- Barometric Altimeter — real-time relative altitude and pressure via CMAltimeter
- Pedometer — live steps, distance, floors, pace, and cadence via CMPedometer
- Raw Sensor Streams — independent 10 Hz accelerometer, gyroscope, and magnetometer feeds
- AirPods Motion (iOS 14+) — 6-DOF motion data from AirPods Pro/Max via CMHeadphoneMotionManager
- Battery & Power State — live battery level, charging state, and Low Power Mode indicator
- Network Interface Type — Wi-Fi, Cellular, Ethernet, or Offline via NWPathMonitor
- Location Source Information (iOS 15+) — flags whether a fix came from GPS, was simulated, or came from an accessory

Bug fixes, code quality and security improvements.