CONVERT vs Crewler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CONVERT
This aviation tool offers a comprehensive unit converter and E6B flight computer for pilots. It handles various aviation-specific calculations, including fuel, weather, and performance, across multiple languages.
- Unit conversion for fuel, distance, weight, and more
- E6B flight computer with wind triangle calculations
- Snowtam decoder for various formats
- Cold temperature altitude corrections
- Metric flight level conversions
- Runway crosswind and obstacle climb gradient calculations
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CrewLounge CONVERT is a multilingual aviation unit converter and E6B flight computer. • Snowtam - different formats (MOTNE, GRF, CRFI, RWYCC) • Fuel Uplift - remaining fuel, uplift Liters/Gallons, density, endurance, range • Cold Temperature Altitude Corrections - calculate approach, go-around and glide path angle • Metric Flight Levels - altitudes and flight level conversion table for crossing Russia, China, etc • convert units for Fuel Flow, Distance, Weight, Fluid, Surface Area, and Speed, including Beaufort • convert units for Angles, including % Slope • convert units for Temperature, Air Pressure and Power, including Jet Engine Thrust • convert Mach-CAS-EAS-TAS based on TAT / SAT and Pressure Altitude • E6B flight computer - Wind Triangle calculations • calculate Runway Crosswind • calculate Obstacle Climb Gradient and required Rate of Climb • calculate Track Time CrewLounge CONVERT runs in 15 different languages (English, French, Spanish, Portuguese, Russian, etc). Contact us to translate the app in your language! This app is one of the popular apps from the CrewLounge AERO aviation suite. However, CrewLounge CONVERT is a standalone app, no registration or subscription required.
Crewler
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View your CRP roster in a clear and convenient application. Features: - View your roster, including all details. Your roster will also be available offline! - Check crew on board for checking if flights have missing crew members. - Synchronize your roster to your calendar or LogTen. (Pro feature) - Add your colleagues to share your rosters. (Pro feature) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Crewler at Free against CONVERT's $2.99. Crewler also leads on update cadence (every 5 days vs every 3 months). CONVERT's advantage is in-app purchases (none vs 3) and iOS requirement (13.5 vs 17.0). On 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
Crewler is free to download; CONVERT costs $2.99 up front. Crewler sells 3 in-app purchases, starting at $2.99 per month. CONVERT asks for nothing beyond the download.
CONVERT ships an update every 3 months, Crewler every 5 days. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.
| Parameter | CONVERT | Crewler |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 18 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | AvioVision | Maurits Hulshof |
In-app purchases
CONVERT
No in-app purchases
Crewler
- Pro Monthly$2.991 Month
- Pro Annual$17.991 Year
- Pro Lifetime$44.99
