M.E.L.C. vs Aircraft Engineer Toolkit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
M.E.L.C.
This tool helps aircraft engineers calculate the expiration dates for airplane defects based on minimum equipment lists. It provides a clear overview of all critical dates and allows for customization of defect categories.
- Calculate defect expiration dates
- Supports categories A, B, C, D
- View all important dates at a glance
- Customize defect categories
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M.E.L.C. is a tool for the aircraft engineers to calculate the expire date (with Category A, B, C and D) of defected airplanes in accordance with the minimum equipment list. With one quick view all important dates are visible. And a function to customize all categories.
Aircraft Engineer Toolkit
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Aircraft Engineer Toolkit is a clean aviation maintenance utility app for aircraft engineers and technicians. The app provides practical local tools for daily maintenance support, including MEL expiry calculation, UTC time reference, ATA chapter lookup, unit converters and airport reference tools. Key tools: • MEL Calculator with UTC-based expiry dates • Airport Wind with live METAR wind, gust and raw report • Airport Info with ICAO/IATA lookup, airport details and map location • UTC Clock with UTC and local time • ATA Reference with searchable ATA chapters • Fuel Converter • Oil Converter • Torque Converter • Pressure Converter • Home Screen widgets for MEL, UTC and Airport METAR Aircraft Engineer Toolkit is designed for single-user, local-first use. No login is required. Disclaimer: This app is a reference and calculation aid only. Always follow approved aircraft maintenance documentation, company procedures and regulatory requirements.
Screenshots
Verdict
The clearest difference is in-app purchases: Aircraft Engineer Toolkit at none against M.E.L.C.'s 1. Aircraft Engineer Toolkit also leads on update cadence (every 3 weeks vs every 18 months). M.E.L.C.'s advantage is iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. M.E.L.C. sells 1 one-off in-app purchase. Aircraft Engineer Toolkit asks for nothing beyond the download.
M.E.L.C. ships an update every 18 months, Aircraft Engineer Toolkit every 3 weeks. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.
| Parameter | M.E.L.C. | Aircraft Engineer Toolkit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 18 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Janko Enke | ABDULKADIR KURT |
In-app purchases
M.E.L.C.
- Full version$0.99
Aircraft Engineer Toolkit
No in-app purchases
Questions
Is M.E.L.C. free?
Is Aircraft Engineer Toolkit free?
Do M.E.L.C. or Aircraft Engineer Toolkit have ads?
Which is updated more often, M.E.L.C. or Aircraft Engineer Toolkit?
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