# LogLens — Drone Flight Log Analysis

> Drone Flight Log Analysis (iPhone/iPad app by ALEX MICHAEL FRALEY.)

- Source: https://appshunter.io/ios/app/loglens/id6761626529 (this page in markdown: same URL + `.md`)
- Developer: [ALEX MICHAEL FRALEY](https://appshunter.io/developer/1887396890)
- Category: Utilities, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 26.2 · 16 MB
- Languages: American English
- Released: 2026-04-08
- Data updated: 2026-04-12
- User reviews in markdown: https://appshunter.io/ios/app/loglens/id6761626529/reviews.md

## What is LogLens?

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.


## Version history (last 1 release)

### 1.0 — 2026-04-08

No release notes.

## More apps by ALEX MICHAEL FRALEY

- [StayPal — Schengen Day Tracker](https://appshunter.io/ios/app/staypal/id6761030041)
- [EventScope Vision](https://appshunter.io/ios/app/eventscope-vision/id6761178400)
- [Tea Atlas](https://appshunter.io/ios/app/tea-atlas/id6761251157)
- [France Drone Prep](https://appshunter.io/ios/app/france-drone-prep/id6761315221)

All apps by ALEX MICHAEL FRALEY: https://appshunter.io/developer/1887396890

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-04-12.*