Blue Eye vs EMX eLB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Eye
This app serves as an electronic technical log for aircraft maintenance and pre-flight checks. It allows users to record flight details, component life, discrepancies, and maintenance operations, syncing data to a distant database.
- Airworthiness Limitations tracking
- Electronic Technical Logs
- Pre-flight and post-flight checks
- Aircraft and engine component life tracking
- Discrepancy reporting
- Maintenance operation logging
- Data sync to distant database
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Electronic Tech-Log for iPhone/iPad users This application is intended for Blue Eye System subscribers. Features: - Airworthiness Limitations, - Electronic Technical Logs, - For fixed and rotary wings, light and heavy. Before each flight (or flight day): Check the current status of your aircraft and find out the next limitations of airworthiness: - Inspections, - Aircraft and engines components life, - Discrepancies, - … After each flight (or flight day): Create a new Technical log entry, and report all required information: - Pre-flight checks (with signature), - Flights, - Engines run hours and cycles, - Discrepancies and deferrals (access to your MEL), - Load sheets, - Pax, - Fuel, - …, After each Maintenance operation: The technician in charge of delivering the Certificate of Release to Service can fill all necessary information - Purchase order concerned, - Tasks performed, - Date, time and place of work, - Work Report and CRS information, - Workshop, technician and agreement, - Signature of the technician. All the information recorded are sent and updated into Blue Eye distant database.
EMX eLB
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An Electronic Logbook (ELB) records and transmits logbook entries, allowing mechanics to prepare all necessary materials and content even before the aircraft arrives. Through an ELB, mechanics can troubleshoot more quickly, enabling you to resolve issues at the critical point of turning the aircraft for your passengers. Electronic logbook records also provide the ability to better understand trends within your aircraft or an entire fleet in order to fix the root cause.
Screenshots
Verdict
The clearest difference is update cadence: Blue Eye at every 2 months against EMX eLB's every 8 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Blue Eye ships an update every 2 months, EMX eLB every 8 months. The most recent releases landed on October 23, 2026 and September 23, 2026 respectively.
| Parameter | Blue Eye | EMX eLB |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | MRX Systems S.A. | FleetMX Aviation Solutions, Inc. |
In-app purchases
Blue Eye
No in-app purchases
EMX eLB
No in-app purchases







