Leon vs eWB Embraer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Leon
This application provides aviation crew members with mobile access to crew information managed by air operators. It supports aircraft operations with features for scheduling, rostering, dispatch, and flight watch, all accessible through a central online database.
- Mobile crew information access
- Aircraft operations support
- Scheduling and rostering
- Airplane dispatch
- Online flight watch
- Centralized database access
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LEON is an application designed for crew members. It offers a mobile access to crew information entered by air operators into Leon system. Leon is a software for aviation supporting aircraft operations fearuring many various functions that allow to run different procedures smoothly. It includes aiding in scheduling, aircraft and crew rostering, airplane dispatch, on-line flight watch, aircraft charter sales and many more. it consists of central database accessible through Internet in relation to users' privileges. The new version of the LEON app has a new design and displays office duties that were missing in the previous version.
eWB Embraer
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Assure operation within aircraft limits by calculating Weight & Balance anytime, anywhere! For airlines who need to calculate airplane CG efficiently, the eWB is a paperless solution that reduces costs and workload, reducing average turnaround time. eWB is fully stand-alone, calculating Weight & Balance offline, generating a Loadsheet that can be sent to the ground or a printer. Benefits: - Assured operations within CG and Weight limitations; - Reduced Turn Around Time by reducing time to perform WB calculations; - Less paper! Reduces or replaces paper-based material, reducing costs; - Clean interface: straight-forward for pilots; - Analysis run offline: no Internet connection needed; - Support for all Embraer Commercial aircraft models; - Easy to update. Data enclosed in the application is provided for demonstration purposes only and shall not be used for operational purposes. Please contact Embraer for further information (opereng@embraer.com.br).
Screenshots
Verdict
The clearest difference is update cadence: Leon at every 2 weeks against eWB Embraer's every 2 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.
Leon ships an update every 2 weeks, eWB Embraer every 2 months. The most recent releases landed on September 15, 2026 and September 17, 2026 respectively.
| Parameter | Leon | eWB Embraer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (8 ratings) — better | — |
| Positive reviews | 9.1% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Leon Software | EMBRAER S.A. |
In-app purchases
Leon
No in-app purchases
eWB Embraer
No in-app purchases







