Stratus Horizon Pro is a free app that can be viewed in day mode, night mode, or via heads-up display. The Stratus Audio Cable (available to purchase for $49.99 from the Appareo web store) is needed to enable the audio playback feature. No cellular service or internet connection is required to operate the app.

Backup Glass Cockpit on your iPad
Stratus Horizon Pro displays a complete Attitude Heading Reference System (AHRS) for supplemental attitude information in your cockpit. Driven by a Stratus receiver, the AHRS feature will display a super responsive pitch and bank instrument on your iPad. It aligns itself automatically, so you can just turn it on and fly. This provides an excellent backup for emergency situations.

Radio Playback
Plug in and play back. You’ll never have to say “say again” again when you use the radio playback feature. Plug in a Stratus Audio Cable to capture ATC communications for easy one-touch playback.

Stratus Device Management
Download firmware updates for all models of Stratus portable ADS-B receivers, Stratus 1, 2, 1S, 2S, 2i, 3, and 3i. Switch your Stratus 3 to "Open ADS-B Mode" to utilize its GDL-90 protocol.

What’s New

Version 2.4.1

Bug fixes and stability improvements

Ratings and Reviews

4.1 out of 5
18 Ratings

18 Ratings

RegSnickers ,

Stratus Horizon Pro

Previous complaint of no vertical view fixed by latest update. This AHRS coming off my Stratus ESGi works better than the Aspen 1000 panel mount in my C-182 ! Love the firmware update feature. I give Appareo ten stars on this one.

Kristoffer993 ,

Only one major flaw

Love the theory behind the app. It could be a lifesaver. I have it loaded on my iPad and iPhone. I only gave it 3 stars because the app only works on horizontal mode. I keep my yoke mounted iPhone and iPad vertical. In the event of a vacuum failure or lost of AI, the app would be running sideways. Not the best position in the event of an emergency. Especially if IMC. I don't think it would be a tough fix. Not sure why they haven't made orientation and option.

Iowatripacer ,

Hasn’t worked since last Apple update

I have I phone 6 and iPad mini 2 which runs my Foreflight. Appareo Systems was notified a month ago that app won’t open since Apple last update. I have emails that indicate a fix was being worked on but still no joy. App won’t open. Good luck with it.


Appareo Systems, LLC
241 MB

Requires iOS 11.4 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2018 Appareo Systems, LLC. All Rights reserved.


  • Family Sharing

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

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