Eclipse QRA vs SkewTLogPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eclipse QRA
This app provides pilots with quick access to essential aircraft information, including checklists, weight and balance calculations, fuel planning, performance data, and emergency procedures. It aims to streamline pre-flight and in-flight operations for pilots.
- Interactive checklists with completion tracking
- Weight and balance configuration
- Automated fuel planning calculations
- Performance lookup for takeoff, cruise, and landing
- Searchable emergency procedures
- DSU data upload for maintenance
- Access to aircraft manuals
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The Eclipse Quick Reference App (QRA) is an interactive version of the Eclipse Quick Reference Handbook. Checklist: Effortlessly scroll through the Eclipse checklist iPad style and mark each action as complete with a single touch. Quickly scroll to any section of the checklist (Startup, Taxi, Takeoff, Climb, Cruise, Approach, Landing, Shutdown) using dedicated buttons. Never lose your place in the checklist as the app remembers your position even when exited. W&B: Quickly configure your jet’s seat layout by dragging seats along their tracks and enter the passenger weights with a flick of your finger. Specify your existing fuel load and how much fuel to add, and the app calculates the uplift in gallons automatically. A real time CG graph shows your CG envelope. Fuel Planning: Enter distance to destination, planned descent type (normal, idle, early), MCT or LRC power, cruise altitude, winds and ISA temperature, and the app returns fuel to destination, time en route, fuel remaining at destination, and nautical mile range at destination. Performance Lookup (Takeoff, Cruise, Landing): Takeoff: Enter field OAT, Elevation, and Takeoff Weight, and the app computes runway requirements, climb weight limitations (climb / tire speed), v50 climb data, and vSpeeds. Optionally enter wind and runway slope to fine-tune the results further. Takeoff Minimums: Enter the ft/nm-altitude requirements from a departure procedure, and the app will show you the required gradient and the Eclipse’s Vy performance in both normal and engine out configurations at that altitude. Climb & Cruise: Enter OAT, altitude, and weight and the app computes the Fuel Flow, KTAS, nm/100 lbs. for both MCT, LRC, and S/E LRC. No need to calculate the LRC FF manually. Trilinear interpolation yields numbers within 2-3 knots and 2-5 lbs/hr accuracy. Climb to altitude and Vy climb at altitude are also displayed. Descent & Landing: Enter field OAT, elevation, and takeoff weight, and the app computes runway requirements, vSpeeds, and balked landing performance. Optionally enter wind and runway slope to fine-tune the results further. Emergency Procedures: Quickly find any CAS Message or Unannounciated Procedure in the color coded, searchable list. Touching a message shows a full page action page (scrollable) from the QRH. DSU Upload: Upload aircraft DSU Data (Diagnostic Storage Unit) to FlightData.com for processing, storage, and sharing with maintenance centers. Manuals: Qualified pilots can view the AFM and other documents through the Eclipse QRA application.
SkewTLogPro
Access powerful skew-t log-p charts with one touch. View atmospheric data like temperature, dew point, and winds aloft at various altitudes. Supports current GPS location, airport codes, or lat/lon for detailed weather analysis.
- One-touch skew-t log-p chart access
- View charts by GPS, airport ID, or lat/lon
- Visual indication of temperature, dew point, winds aloft
- Support for International Airport ICAO codes
- View charts along your route
- Save charts for offline use
- Scroll forward/backward for past and forecast charts
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SkewTLogPro gives you one-touch access to powerful skew-t log-p charts. View charts using your current GPS location, airport ID code or lat/lon. Each skew-t log-p chart provides a visual indication of temperature, dew point, winds aloft, and wind speed at various altitudes, as well as Current Radar, Airmets, Sigmets, and SkewT data charted, filtered by altitude. FEATURES: • NEW! View all Sigmet/Airmet on a map and filter by altitude • NEW! View SkewT data charted on a map with altitude filtering, shows potential warnings of Icing, Wind, and Visibility • Ability to view the lifted parcel line • Support for International Airport ICAO codes • View charts along your route using 'View Route' • Support for GFS for all locations outside the continental United States (Option in Settings) • View many values such as CAPE, LI, LCL, and many other options through settings • Save charts for offline use • View Skew T Log soundings by touching a location on a map • View skew-t log(p) charts using your current GPS location, airport identifier or latitude and longitude. • Scroll forward and backward to view past and forecast charts. • History list allows easy access to previously viewed locations. • Select how many previous and forecast hours are charted • Drag on the graph to view each point value • Double-tap to zoom in for more detail on the soundings. • Great for aviators, glider pilots and weather enthusiasts. An annual subscription is required to access these graphs and to use SkewTLogPro for $12.99 per year. Cancel anytime. Please view the End User License Agreement here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Eclipse QRA at 100% against SkewTLogPro's 47%. Eclipse QRA also leads on rating (5.0 vs 2.7) and in-app purchases (none vs 1). SkewTLogPro's advantage is ratings volume (97 vs 3). On price, update cadence, 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. SkewTLogPro sells 1 in-app purchase, starting at $12.99 per year. Eclipse QRA asks for nothing beyond the download.
Eclipse QRA holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: SkewTLogPro has 97 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Eclipse QRA's written reviews are positive against 47% of SkewTLogPro's.
Eclipse QRA ships an update every 4 months, SkewTLogPro every 2 months. The most recent releases landed on July 30, 2026 and September 23, 2026 respectively.
| Parameter | Eclipse QRA | SkewTLogPro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 2.7 (97 ratings) |
| Positive reviews | 100.0% of reviews — better | 46.7% of reviews |
| Number of ratings | 3 | 97 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 53 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Eclipse Aerospace | Chad Sandstedt |
Customer experience
Eclipse QRA
SkewTLogPro
Bugs and requests
Eclipse QRA
Not enough reviews yet to summarise bugs or requests.
SkewTLogPro
Reported bugs
7 issues- App crashes when selecting locations
- Data timeout errors after updates
- App becomes non-functional when data source API changes
- Slow performance and lag when flipping through hourly forecasts on iPad
- Crashes when manually changing parameters on iPad
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- Graphics appear coarse and need sharpening
- Resolution doesn't refresh when zooming in
Requested features
13 requests- Interactive charts like rucsoundings with exact value selection
- Extended forecast range beyond 18 hours using GFS data
- Remember last input locations for route planning
- Display CAPE, LFC, EL, and adiabatic lines graphically on chart
- Show weather model being used in the app
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- Better orientation support for iPad use in landscape mode
- More detailed in-app tutorial on reading Skew-T charts
- Integration with ForeFlight for in-flight real-time data
- Rawinsonde location map for station selection
- Display valid times and data source station on charts
- Expansion of coverage outside CONUS
- Higher resolution graphics when zoomed in
- Ability to plot current altitude and temperature like online version
In-app purchases
Eclipse QRA
No in-app purchases
SkewTLogPro
- Annual Subscription7 Days trial$12.991 Year









