SkewTLogPro vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
E
This app simulates E-JETS cockpit functionality for pilot training. It offers interactive panels, detailed button explanations, and a full electrical diagram to enhance understanding of aircraft systems and reduce study time.
- Interactive cockpit panels
- Full interactive electrical diagram (iPad only)
- 1,100+ functional buttons with explanations
- Detailed E170/E175/E190 button info
- Memory Items, Limitations, Definitions
- 260+ FMS screens
- High-fidelity cockpit images
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E-JETS Virtual Panel App The E-JETS Virtual Panel App is a powerful self-study tool designed to help pilots prepare for initial or recurrent E-JETS training. By simulating cockpit functionality, it allows pilots to become familiar with every panel, switch, and system, significantly reducing study time and boosting training efficiency. Exclusive Feature – Full Interactive Electrical Diagram (Available on iPad version only) The interactive electrical diagram helps pilots understand the E-JETS electrical system by manipulating switches and visually analyzing real-time results, offering a realistic and engaging way to learn both normal and abnormal configurations. ------------------------------- Key Features 1,100+ Fully Functional Buttons with explanations, images, and references (and growing). Pan and Zoom capabilities for precise navigation. Full Interactive Electrical Diagram for realistic system training. Detailed E170 / E175 / E190 button explanations. Memory Items – Fast search, edit, add, and delete capabilities. Limitations – Fast search, edit, add, and delete capabilities. Definitions – Fast search, edit, add, and delete capabilities. EICAS Message List – Fast search tool. High-fidelity cockpit images for an authentic experience. 260+ FMS screens to practice navigation and setup. Dark Mode for low-light training environments. Save your notes and keep them safe, even when your device is powered off. Included Virtual Interactive Panels This version now includes 45 interactive panels, such as: E190 Status Synoptic E170/175 Status Synoptic Electrical Synoptic Hydraulic Synoptic ECS Synoptic Controls Synoptic Fuel Synoptic TCAS Map Overlay EGPWS Display on MFD HSI (Full Compass, ARC, ARC Mode 2) Weather Radar Displays (MFD & PFD) Airspeed, Vertical Speed, and Altitude Tapes ADI (Annunciations, Takeoff, Failures, Miscompares) Flight Mode Annunciations MCDU Basic Functions (Detailed functions coming soon) Horizontal and Vertical Profiles Full EICAS Functions Thrust Lever Buttons DVDR (Universal) Reinforced Door Panel Attendant Rainbow Lights Engine Schematics Glareshield Lights Panel Cockpit Lights Control Panel Passenger Signs Panel External Lights Panel Pressurization Panel Passenger Oxygen Panel Lavatory Fire ---------------------------------- Why Pilots Love E-JETS Virtual Panel Train anytime, anywhere Reduce preparation time before recurrent or type-rating checks. Gain hands-on understanding of cockpit workflows and systems. Constant updates with new interactive content. ---------------------------------- Note: Cockpit configurations vary slightly by aircraft. The panels, buttons, and switches in this app represent a specific configuration from the E-JETS family. This app includes complete information for the E170, E175, and E190 models — all in one place.
Screenshots
Verdict
The clearest difference is price: SkewTLogPro at Free against E's $19.99. E's advantage is rating (4.9 vs 2.7) and in-app purchases (none vs 1). On ratings volume, 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
SkewTLogPro is free to download; E costs $19.99 up front. SkewTLogPro sells 1 in-app purchase, starting at $12.99 per year. E asks for nothing beyond the download.
E holds the better App Store score, 4.9 against 2.7. Both are backed by a comparable volume of ratings — 97 and 116 respectively. Written reviews point the same way: 47% of SkewTLogPro's written reviews are positive against 80% of E's.
SkewTLogPro ships an update every 2 months, E every 3 months. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.
| Parameter | SkewTLogPro | E |
|---|---|---|
| Price | Free — better | $19.99 |
| Rating | 2.7 (97 ratings) | 4.9 (116 ratings) — better |
| Positive reviews | 46.7% of reviews | 80.0% of reviews — better |
| Number of ratings | 97 | 116 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Paid — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 79 MB | 547 MB |
| Age rating | 4+ | 4+ |
| Developer | Chad Sandstedt | Jorge Gonzalez Galvan |
Customer experience
SkewTLogPro
E
Bugs and 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
E
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SkewTLogPro
- Annual Subscription7 Days trial$12.991 Year
E
No in-app purchases









