LogLens

Drone Flight Log Analysis

Free

Offline drone flight log analysis. Import PX4 ULog files, get instant diagnostics, and share polished reports — all on-device. LogLens is an offline-first flight log analysis app for drone operators and UAS engineers. Import PX4 ULog (.ulg) flight logs directly from the Files app, and get instant diagnostic analysis — no cloud, no accounts, no network required. What LogLens does: • Parses real PX4 ULog binary files on-device • Runs deterministic diagnostic rules for battery health, GPS quality, vibration, estimator status, and failsafe events • Displays a curated quicklook: health verdict, severity-coded findings with recommendations, event timeline, and charts (voltage, altitude, GPS satellites, flight modes) • Generates polished HTML and PDF flight reports you can share with your team • Stores everything locally — your logs never leave your device unless you explicitly export them Built for: • Drone operators and field test teams • Robotics and UAS engineers • Developers working with PX4 and open-source autopilot stacks • Anyone who wants fast situational awareness from a flight log Current format support: • PX4 ULog (.ulg) — fully supported • ArduPilot DataFlash (.bin) — sample data preview (full parser coming) • MAVLink Telemetry (.tlog) — sample data preview (full parser coming) Privacy is a feature: all processing happens on-device. No backend, no accounts, no tracking.

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The developer, ALEX MICHAEL FRALEY, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Curiosell Systems LLC
    Size
    • 17.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 26.2 or later.
    • iPhone
      Requires iOS 26.2 or later.
    • iPad
      Requires iPadOS 26.2 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2025 Alex Fraley
  • Developer Website
  • Privacy Policy

    • More by ALEX MICHAEL FRALEY