Get the app
Download EFISChartSync
The free companion app downloads your chart data and writes it to your Dynon or AFS USB stick automatically. Fresh data every 28-day AIRAC cycle. Latest version 1.6.8.
A subscription is required. The app is free, but it can't download charts until you enter an activation code, which is emailed to you when you subscribe. If you don't have one yet, start with a plan and a 3-month free trial.
The iPhone and iPad app is in beta. Joining needs Apple's free TestFlight app, which the link will prompt you to install.
Before you download
System requirements
macOS
12.0 Monterey or later·Intel or Apple silicon
Windows
10 version 1809 (64-bit) or later·runtime bundled·no admin rights
iPhone & iPad
iOS 17 or later·a device with a USB-C port·beta, via TestFlight
USB stick
16–32 GB·FAT32 with Master Boot Record·we recommend the EAGET 32 GB dual connector, whose USB-C end fits an iPhone or iPad and USB-A end fits your EFIS
Free disk space
25 GB recommended·5 GB minimum
Also needed
A free USB port·an internet connection
How to check your OS version, how much space your selection actually uses, and what happens when space runs short. All covered on Support.
After installing, launch the app and enter your activation code (it's in your confirmation email). It handles all chart downloads and USB stick transfers automatically. Need a hand? Visit Support.