SkewTLogPro

Name: SkewTLogPro
Rating: 2.7 (96 reviews)
Author: IP Banc, Inc.

Utilities

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

96 Ratings
Age Rating

4+
Years
Category

Utilities
Developer

IP Banc, Inc.
Language

EN
English
Size

82.5
MB

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/

Ratings & Reviews

2.7

out of 5

96 Ratings

Not great for summer cumulus or thunderstorms
08/25/2018

DrPappy
This app is a great concept, but for a pilot it falls short on much of why I use a skew chart in the first place. Namely on the visualization of items such as convective inhibition, LFC, CAPE, EL, etc. I mean it is a chart, so you would expect to easily view these items graphically on the chart itself. Instead you only see the numerical value on the side of the chart.If this app were to simply add a line showing the adiabatic temperature values of a lifted parcel of air, it would deserve a 5-star rating.
Not great for summer cumulus or thunderstorms
08/25/2018

DrPappy

This app is a great concept, but for a pilot it falls short on much of why I use a skew chart in the first place. Namely on the visualization of items such as convective inhibition, LFC, CAPE, EL, etc. I mean it is a chart, so you would expect to easily view these items graphically on the chart itself. Instead you only see the numerical value on the side of the chart.If this app were to simply add a line showing the adiabatic temperature values of a lifted parcel of air, it would deserve a 5-star rating.
Used to be the best, not anymore
05/03/2025

Riccola Popcorn
I am a CFI who USED to use this app daily for summer flying & recommended it to all my colleagues and students. No more. Why? Well, while pricy to initially acquire, this app USED to be a one-time fee ($12 I believe). Then it inexplicably broke for the past year when the FAA/NOAA changed their data API, crashing when I tried to load the chart for any field. The developer provided no responses to my bug reports, despite my being an avid user and advocate. So. I gave up on this app and instead started using Windy’s skew-t generator, which is free. As this summer has rolled around, I noticed an update was FINALLY released. I excitedly downloaded it and — SURPRISE — the app been paywalled behind an annual subscription! No demo mode to verify that it actually works. No regard for the fact that I ALREADY paid to acquire it. Regrettably there are plenty of free Skew-T generators out there so I am removing this from my EFB and will no longer mention it to colleagues nor students. It’s been a nice run folks, sorry to see that this IP has been sucked up by a faceless corp who just want to extract an annuity from pilots and has no regard for prior purchases. To add insult to injury, the underlying data source (NOAA) is STILL paid for by US tax dollars. Shameful.

Developer Response
Sorry about this prior issue. Our data for the previous 12 years was shut off till the past year. Our data now costs based on usage, so we are requiring about a dollar a month. (We had reached out and asked over 100 prior users if they would be willing to pay an annual fee and over 98% said yes). We recently added major enhancements with maps and viewing data filtered by altitudes that we hope are useful. I hope that maybe you will use the 7 day free trial to see if our app still meets your needs. Thank you.
Used to be the best, not anymore
05/03/2025

Riccola Popcorn

I am a CFI who USED to use this app daily for summer flying & recommended it to all my colleagues and students. No more. Why? Well, while pricy to initially acquire, this app USED to be a one-time fee ($12 I believe). Then it inexplicably broke for the past year when the FAA/NOAA changed their data API, crashing when I tried to load the chart for any field. The developer provided no responses to my bug reports, despite my being an avid user and advocate. So. I gave up on this app and instead started using Windy’s skew-t generator, which is free. As this summer has rolled around, I noticed an update was FINALLY released. I excitedly downloaded it and — SURPRISE — the app been paywalled behind an annual subscription! No demo mode to verify that it actually works. No regard for the fact that I ALREADY paid to acquire it. Regrettably there are plenty of free Skew-T generators out there so I am removing this from my EFB and will no longer mention it to colleagues nor students. It’s been a nice run folks, sorry to see that this IP has been sucked up by a faceless corp who just want to extract an annuity from pilots and has no regard for prior purchases. To add insult to injury, the underlying data source (NOAA) is STILL paid for by US tax dollars. Shameful.
Developer Response 1d ago
Sorry about this prior issue. Our data for the previous 12 years was shut off till the past year. Our data now costs based on usage, so we are requiring about a dollar a month. (We had reached out and asked over 100 prior users if they would be willing to pay an annual fee and over 98% said yes). We recently added major enhancements with maps and viewing data filtered by altitudes that we hope are useful. I hope that maybe you will use the 7 day free trial to see if our app still meets your needs. Thank you.
Great tool for pilots!
05/05/2019

Boethius52
This app is a really good tool for telling you what to expect with regard to current weather, and can help you improve your own forecasting. Using this app and learning enough to be able to understand all it has to offer ought to be part of being a pilot. It's really fun to look out the window at any time of day, estimate the height of the clouds I see, and then get on SkewTLogPro and use the graph to see how close I estimated. The graphs always match the ceilings given by the 3 airports near here.And the app's charts are a whole lot easier to read than NOAA Skew-T charts.
Great tool for pilots!
05/05/2019

Boethius52

This app is a really good tool for telling you what to expect with regard to current weather, and can help you improve your own forecasting. Using this app and learning enough to be able to understand all it has to offer ought to be part of being a pilot. It's really fun to look out the window at any time of day, estimate the height of the clouds I see, and then get on SkewTLogPro and use the graph to see how close I estimated. The graphs always match the ceilings given by the 3 airports near here.And the app's charts are a whole lot easier to read than NOAA Skew-T charts.
Important app for pilots and cloud observers
02/06/2023

Cloudnut
Great app with selectable features to suit many uses. Informative help menus minimize the learning curve, as well as responsive customer service. Makes the beauty and awe of our atmosphere more fantastic with insight in the palm of your hand. Access detailed models in the CONUS and around the world. I use it flying jets, props and gliders for the big weather picture and predicting formation of contrails to view from the ground as a hobby. The the Windy app, always something of interest, everyday.
Important app for pilots and cloud observers
02/06/2023

Cloudnut

Great app with selectable features to suit many uses. Informative help menus minimize the learning curve, as well as responsive customer service. Makes the beauty and awe of our atmosphere more fantastic with insight in the palm of your hand. Access detailed models in the CONUS and around the world. I use it flying jets, props and gliders for the big weather picture and predicting formation of contrails to view from the ground as a hobby. The the Windy app, always something of interest, everyday.

-Added ability to view data directly on the graph by dragging down -Added ability to view Airmets/Sigmets through altitude and information on each -Added ability to view SkewT data charted through altitude with severity level colors -Added ability to view current weather radar -Added support for light/dark mode

Version 3.9 5d ago

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller: Chad Sandstedt
Size: 82.5 MB
Category: Utilities
Compatibility: Requires iOS 17.0 or later.

iPhone
Requires iOS 17.0 or later.

iPad
Requires iPadOS 17.0 or later.

Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 4+

4+

Learn More
In-App Purchases: Yes

Annual Subscription $12.99

Learn More

Developer Website

Privacy Policy

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SkewTLogPro

Ratings & Reviews

Not great for summer cumulus or thunderstorms

Used to be the best, not anymore

Great tool for pilots!

Important app for pilots and cloud observers

What’s New

App Privacy

Data Not Collected

Accessibility

Information

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