# fivelevel — Mx Friendly References

> Aircraft maintenance tools for flightline efficiency. (iPhone/iPad app by Adam Moody.)

- Source: https://appshunter.io/ios/app/fivelevel/id6758299144 (this page in markdown: same URL + `.md`)
- Developer: [Adam Moody](https://appshunter.io/developer/1815120551)
- Category: Utilities, Reference
- Price: Free
- Rating: 5.00/5 from 7 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 25 MB
- Languages: English
- Released: 2026-01-29
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/fivelevel/id6758299144/reviews.md

## What is fivelevel?

5-Level gives aircraft maintainers the tools they actually use — no fluff, no subscriptions, just what you need on the flightline.


Features:

• Zulu & local time display
• Julian date calendar
• Preflight due calculator
• Conversion tools
• Searchable ICAO codes
• Apple Watch app with complications
• Home screen widget


Built by a maintainer who got tired of doing math on the back of a 781.

## Key features

- Zulu & local time display
- Julian date calendar
- Preflight due calculator
- Conversion tools
- Searchable ICAO codes
- Apple Watch app
- Home screen widget


## Frequently asked questions about fivelevel

### What is fivelevel?

fivelevel is a utility app designed for aircraft maintainers, offering tools like time conversion, date calculation, and searchable ICAO codes. It aims to provide essential functionality without any fluff or subscriptions.

### What devices does fivelevel support?

fivelevel is available on Apple Watch, iPhone, iPad, and iPod. It also features an Apple Watch app with complications for quick access.

### How often is fivelevel updated?

The latest version of fivelevel is 2.2.1, released on May 16, 2026. Updates are provided to ensure the app remains functional and reliable for its users.

### Is fivelevel free to use?

Yes, fivelevel is completely free to download and use. There are no subscriptions or in-app purchases required to access its features.

### Does fivelevel have ads?

No, fivelevel does not contain advertisements. The app is designed to be free of distractions and focuses solely on providing the necessary tools for aircraft maintenance.

### What is the age rating for fivelevel?

fivelevel has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger individuals who may be interested in aviation.

### What kind of tools does fivelevel offer for aircraft maintenance?

fivelevel includes features such as Zulu & local time display, a Julian date calendar, a preflight due calculator, conversion tools, and searchable ICAO codes.

### What is the user sentiment for fivelevel?

Based on the available data, fivelevel has a perfect 5.0-star rating from 7 reviews, indicating a very positive user sentiment.

## Version history (last 5 releases)

### 2.2.1 (7) — 2026-05-16

NEW FEATURES:
• Fleet Tracking - Track multiple aircraft with tail numbers and PR/BPO times
• Aircraft-specific intervals (C-17 → 144hr, C-5 → 14-day, etc.)
• Custom aircraft types - add your own airframes if not pre-configured
• 144hr/6-day PR/BPO interval added

BUG FIXES:
• Julian date calendar now correct across DST transitions and all timezones
• Fixed visual bugs in Add Aircraft dialog

For reference use only. Always verify with official technical data.

### 2.1.0 — 2026-04-01

Version 2.1.0

NEW FEATURES:
• Live METAR weather data with GPS nearest airfield
• Crosswind calculator with real-time compass
• TCI calculator - never do date math in your head again
• %MAC calculator for weight & balance
• 2,500+ airports with GEOLOC codes
• Radio frequencies for 1,600+ airports
• Fuzzy search - misspell Diepholz, we'll still find it
• Aircraft diagrams (C-17, C-5, C-130)

IMPROVEMENTS:
• Julian calendar now uses Zulu time (bug fix)
• Searchable by ICAO, GEOLOC, base name, or city
• Military vs civilian airport tagging

For reference use only. Always verify with official technical data.

### 2.0.0 — 2026-02-07

Version 2.0 - Major Update!

NEW FEATURES:
• Live weather data with METAR integration
• GPS location to find nearest military airfield
• Crosswind calculator with compass for engine runs
• Radio frequencies for 1,600+ airports (91% coverage)
• Aircraft-specific diagrams (C-17, C-5, C-130)

### 1.2.0 — 2026-02-04

NEW FEATURES
- Fuel Conversions: JP-8 and Jet A/A-1 gallons to pounds, kg to lbs
- Julian Date Reverse Lookup: Enter a Julian day number and get the calendar date back, with leap year support
- About & Feedback: Tap the info icon on the Preflight screen for app info, disclaimer, and email contact

IMPROVEMENTS
- Added official liability disclaimer
- Tapping the contact email now opens your mail app
- Apple Watch app visual refresh: larger clock display with subtle glow effects, refined divider, bigger picker wheels, polished buttons with press feedback, redesigned status cards with colored accent bars

### 1.0.1 — 2026-01-29

No release notes.

## More apps by Adam Moody

- [DressRight](https://appshunter.io/ios/app/dressright/id6746093463)

All apps by Adam Moody: https://appshunter.io/developer/1815120551

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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 2026-06-04.*