ChaiAirTimes

This app is the only app available to date to calculate zemanim for on board the airplane using your Android phone. You simply can't take off without having this app on your phone.

Please view our tutorials to learn how to use the app:

1. Kml file defined routes
2. Downloading a kml file
3. Routes defined by clicking
4. Other zemanim utilities

Among the features in this app:

1. Upload flightaware Google Earth kml files to easily predetermine routes
2. Edit the route by clicking on the map.
3. Built in topo maps for use during the flight.
4. Built in documentation.
5 Extensive list of departure and arrival airports. Can also define ones not on the list.
6. Uses a simple flight plan to increase accuracy of zemanim that occur near take-off and
landing. During an active flight, the flight plan can be improved by using the "Fix Posit"
button to make the predicted position coincide with the actual position.
7. Calculates several types of zemanim:
a. Z'manay Ha'yom at the clicked point (a zemanim table for anywhere in the world!)
b. Time to upcoming zemanim at the clicked point (so you won't daven incorrectly).
c. Airplane zemanim predictions corresponding to Chai Air Times tables.
Color coded markers are positioned on the map to show when the zemanim are
predicted to occur. The corresponding zemanim are also similarly color coded in the
zemanim chart for user friendliness.
8. If GPS geolocation is available (you need to be near a window -- so book a window
seat) then push a button to show the airplane's position in real time using your phone's
GPS. Use this utility to even daven k'visikin to 1-2 min accuracy (i.e., sunrise is
when the GPS position coincides with a very accurate day terminator.

In short, a tremendous tool for the airplane traveler.
Don't hesitate to contact the developer using the contact info on this webpage for feedback or questions.
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What's New

Now supports both portrait and landscape modes.
Better support for polar routes were time can rewind and sunrise or sunset reappear.
Completed a set of video tutorials describing how to use the app. See links in the app's description
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Additional Information

Eligible for Family Library
Eligible if bought after 7/2/2016. Learn More
Updated
August 23, 2018
Size
98M
Installs
50+
Current Version
2.4.1
Requires Android
5.0 and up
Content Rating
Everyone
Permissions
Offered By
Chaim Keller
Developer
1017 N Laurel Ave. Apt. 1 Los Angeles, CA 90046 USA
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