Stratus Horizon Pro4.3.2 - App Store

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 Transcription & 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. Similar to how visual voicemail works, the ATC communications will be converted into text, providing a visual assist for referencing previous audio clips for playback. This enables pilots to receive a clearance, ATIS, or other important ATC communications without needing to write them down

Stratus Audio Cable
The Stratus Audio Cable (available to purchase for $49.99 from the Appareo web store) is needed to enable the radio transcription and playback feature. No cellular service or internet connection is required to operate the app.

Stratus Device Management
Download firmware updates for all models of Stratus portable ADS-B receivers, Stratus 1, 2, 1S, 2S, 2i, 3, 3i, and 4. Switch your Stratus 3 to "Open ADS-B Mode" to utilize its GDL-90 protocol that integrates Stratus with most flight apps. Stratus 4 defaults to GDL-90 mode. Enable notifications to get updates any time there is a firmware update to your portable device.

Stratus Horizon Pro is a flight app that can be viewed in day mode, night mode, or via heads-up display.

App Multitasking
Stratus Horizon Pro supports app multitasking with split view and overlay view, so you can use radio transcription and playback alongside your favorite EFB. The EFB app must be able to support multitasking.

Version History We have a great new update for you to kick off the Fall flying season.

- Support for iOS 27. Support for new hinged devices coming soon.
- All new Stratus Firmware update screens. Should provide you with information on the update as well as the state of download.
- Fixed a bug when restoring purchases for transcriptions.
- Fixed notification cell in dark mode.

We have more great features coming later this year. Fly safe! 4.3.2 Oct 2 Added support for the latest Stratus 4 firmware. If you own a Stratus 4, make sure to check the firmware update section for the latest update for your device. 4.3.1 Jul 18 We've got a new update for you this Spring. We've updated some of our language used for transcriptions to help better identify airports and some works. We are hoping to have even more updates for the language model this summer.

We've also added push notification support to let you know when there are new software updates for your Stratus Portable. These are completely optional, but we hope to let you know when there is a new update available for your hardware.

As we get into the summer flying season we hope to hear from you if there is something you'd like to see in the app or something we could be doing better. If you are at Sun N' Fun or OshKosh this year, we'll be there. Stop by and tell us how we are doing. Fly Safe! 4.3 Apr 13 Small bug fixes for Stratus users. 4.2 Mar 17 This release includes all of the fixes made previously for support of Stratus 4. This build also includes bug fixes that will support firmware updates to Stratus 4 without crashing. 4.1 Jan 29 We have a small update today that fixes some issues when using Stratus 4. This release also includes the ability to download and export Track Logs from your Status device. 4.0.2 Jan 27 A quick update to fix a crash when opening settings with an iPhone on iOS 26. Thanks for the feedback everyone that reported this. 4.0.1 11/19/2025 - Stratus 4 Support 4.0.0 11/10/2025 We hope everyone had a safe summer of flying. We have a great new release to kick off the release of iOS 18.

- Rewrite of our In-App purchases to support promo codes and delayed purchase transactions
- Fixed Settings screen when used in portrait mode
- Misc bug fixes

Please keep the suggestions coming. Fly safe! 3.1 09/16/2024 We have a small update post-OshKosh for everyone. Thanks to everyone that found us at the show and gave us your feedback. We are still working on some of the items, but we wanted to get a quick update out with some quick-wins.

- MPH setting for AHRS (thanks Newell for the reminder again)
- Added check for network permission to fix Stratus settings from not updating
- Fix some layout issues when using in Portrait mode
- Misc cleanup

Thanks again for your support and feedback. Please reach out via email if you have anything you'd like to see improved or fixed. 3.0.2 08/07/2024 - Fixed Wi-Fi firmware update bug 3.0.1 04/03/2024 - Fix possible crash when playing back audio recordings
- Target iOS 15 as minimum version
- Misc bug fixes 3.0 11/09/2023 - Updated pilot's guide 2.8.1 05/03/2023 A small update to support that latest version of iOS. Also added the ability to control the night brightness for Stratus portables independent of the day brightness. 2.8 04/04/2023 Updates for iOS 14. 2.7.0 09/28/2020 Improved firmware update for Stratus 3i 2.6.3 08/31/2020 Transcriptions now work properly after app reinstallation 2.6.2 04/14/2020 ATC Radio Transcription is now available with a subscription. 2.6.1 03/21/2020 ATC Radio Transcription is now available with a subscription. 2.6.0 03/20/2020 Updated Stratus 3 Firmware 2.5.1 12/20/2019 Release Notes:
- Enable firmware updates to Stratus WiFi module.
- Enable App Transport Security. The Appareo Systems domain is whitelisted for firmware downloads.
- Fix bug where some Stratus switches remained on when disconnected from a Stratus.
- Fix crash when attempting to set an invalid WPA2 password.
- Disable dark mode support for iOS 13. Please use the Night Mode feature instead. 2.5.0 11/05/2019 Bug fixes and stability improvements 2.4.1 05/07/2019 - The cabin filter has been completely reworked, and calibration has been removed. It now uses machine learning to classify utterances as radio or cabin once they are fully processed by the system. For now, cabin recordings are displayed in a separate tab, accessible via the same menu as starred transcriptions. If an utterance is misclassified (e.g. cabin when it should be radio), there is now an option in the "Flag Transcription" dialogue to move it over. This will also alert us of the error so that we may improve the accuracy in the future.
- To support the new cabin filter behavior, audio on the waveform is now dimmed by default. Utterances determined to be radio audio will be highlighted once processed.
- Improved behavior of swipe actions on the recording list.
- Fixed bug where starred recordings would still be cleared if the recording data limit was reached.
- Fixed bug where the iOS status bar was not visible on the settings screen in night mode.
- Fixed a bug where the highlighted section of the waveform did not match with the actual recorded audio.
- Fixed a bug where the app could crash when jumping to the top of the recording list. 2.4.0 04/08/2019 - Devices that do not support transcriptions now run in audio-only mode, allowing for recordings to still be made.
- Added the ability to completely disable audio recording
- You can now swipe on a recording to access extra actions, like in the mail app
- Individual recordings may now be deleted
- Recordings may now be starred, preventing them from being automatically deleted
- Starred recordings may be viewed under the "Starred Recordings" header
- Added the ability to disable Stratus auto power off
- Added the ability to disable Stratus auto AHRS calibration
- Added the ability to enable/disable Wi-Fi SSID broadcast
- Added the ability to configure Wi-Fi WPA2 security
- Fixed bug where true course was shown as magnetic heading
- Fixed bug where audio recording would not work the first time the app is run after a fresh install
- New Stratus 3 and Stratus 3i guides
- Various UI tweaks 2.3.0 02/21/2019 - Redesigned settings screen
- Fix bug where true course was shown as magnetic heading
- New Stratus 3 and Stratus 3i guides
- Improved app load time
- Improved transcription performance 2.2.0 01/14/2019