Pilots, it's time to get rid of your sight level, water bottle or whatever "old school" method you have been using to determine cloud height. Introducing Cloud Topper, a revolutionary new sight level designed specifically for the iPad and iPhone.

With Cloud Topper you can use your device camera, gyroscope and accelerometer as a traditional sight level. Plus you can enter the distance to a cloud and Cloud Topper will calculate your height above or below that cloud. The displayed cloud height is even corrected for the curvature of the earth.

Cloud topper is a fun, easy to use app that should be included in every pilots EFB.

Cloud Topper is not an FAA approved source to determine cloud height. Cloud Topper is not intended to replace weather radar or pilot skills and judgement. Always consult the Aircraft Manufacturer’s Aircraft Flight Manuals, Federal Aviation Administration (FAA) websites and publications, and individual company policies.

What's New

Version 1.5

- Added color change option for cloud height text. Press the cloud height number to change the color.
- Optimized for iOS 10.

Ratings and Reviews

Great addition to any flight bag!


Does just what is says and then some! Been looking for an app like this for quite some time and its finally here! Thanks for the great addition to the App Store.



Wish this came out out in 1970 when I started flying. A much needed update to my old "water bottle" technique. May have kept me from being struck by lightning in December of 2002!

Limited Orientation


This app only works in landscape with the power input on the right. I find this annoying. It is also unclear how to use the miles function and there is no help function. Nice first try, but needs more refinement.


Crop Applications, LLC.
7.7 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2012 Crop Applications, LLC.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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