This app almost never connects to the DXe and when it does it fails at programming resulting in signal loss to rx. Its caused several crashes due to connection loss and i'm thinking about how I can make the manufacturer pay for the loss in parts.

Horrible horrible user experience. Bad user flow for connecting a device, poor navigation in the app, unclear how to work most of the UI. It's as if they outsourced this app to a third party who had never used (and never will) the actual product.This is so typical of drivers and/or setup software for consumer devices (like printers, Bluetooth headsets, digital voice recorders, and now this thing).Below this is a review with a few important tips. (1) you have to explicitly enable the microphone for this app in Settings or it won't work at all, (2) I had to turn off Siri because comically Siri kept interrupting and trying to "help" with whatever beeps and bloops are being transmitted on the audio cable.

I have a UMX Timber and needed to control the flaps, or else they stay down all the time by default. Was extremely frustrated with the app, since the USB cord doesn’t work with a Mac so the $14 Bluetooth cord is the only option. Once I was informed by Horizon Hobby that you have to go to “settings”, “about”, and change the the app mode to advanced, it opened up the ability to control the flaps through the channel setup under model setup. How difficult would it be to let users know that up front?Anyway, now the app can be used as intended for me.

This works on my iPhone 5C, iOS 10.2.1. Load DXe Programmer App from iTunes. Go to Settings on iPhone, scroll all the way down to the bottom and click on Spectrum Transmitter. Turn Microphone on (this activates the receptacle that you plug the programming cable into). Connect cable to DXe and iPhone. The first synch should be from the transmitter to the iPhone, among other things this lets you change the transmitter mode. If you don't activate the microphone, synching doesn't work. There is an iPhone/DXe tutorial on You Tube.