About Vario One
VARIO One - Your smart variometer for iPhone and Apple Watch. Precise as a professional vario. Simply as an app. No additional devices needed. VARIO One combines barometric pressure sensor, accelerometer and GPS into a...
VARIO One - Your smart variometer for iPhone and Apple Watch. Precise as a professional vario. Simply as an app. No additional devices needed. VARIO One combines barometric pressure sensor, accelerometer and GPS into a full-featured variometer -- right on your iPhone and Apple Watch. Both apps work independently and signal lift through acoustic beep tones. Test all features free for 14 days. REAL-TIME AIR TRAFFIC WITH SAFESKY See paragliders, hang gliders, sailplanes, helicopters and other air traffic in real time on your map. Your position is shared so others can see you too. You are instantly alerted by sound and vibration when traffic approaches -- graded by distance and closing speed. Free registration right in the app. THERMAL ASSISTANT Your flight track is color-coded live by climb and sink rates -- so you can instantly see where the best lift is in your circle. The app automatically detects circling and switches to the thermal view. Includes wind direction and speed. IMPORT FLIGHTS Import your previously flown flights as GPX or IGC files directly into the flight book -- using the +button or "Open with" from the Files app. VARIOMETER - Immediately audible lift through a combination of barometric pressure and accelerometer sensors. - Display of altitude, ground speed and glide ratio. - Rotating wind direction indicator with counter showing the last calculation. FLIGHT RECORDING - Automatic recording as GPS and IGC tracks. - Digital flight book with map view and statistics. - Automatic upload to DHV-XC and XContest - Automatic takeoff and landing detection. MAP - Airspaces and current wind from thousands of weather stations. - Takeoff and landing sites -- permanently visible for free. APPLE WATCH - Standalone vario with precise pressure sensors. - Ideal for Hike & Fly, as a backup or when there is no space in the cockpit. - Flight recording in GPX and IGC format. - Rotating wind direction indicator. New features are added regularly. You can test all features free for 14 days. Takeoff and landing sites remain free after the trial. The subscription renews automatically and can be cancelled at any time.
Version History Vario now reacts even faster: A new filter architecture that combines the device's barometer and motion sensors lets you hear climbs the instant they start — without becoming jittery. 6.4 May 12 New: Pilot & Equipment now includes a Save button and clearer server sync. We also fixed a display issue when using large text sizes. 6.3 Apr 21 Mute vario before flight: The vario tone can now be configured to activate only after the flight timer starts. Perfect for keeping things quiet while preparing your lines before takeoff. 6.2 Apr 15 - SafeSky data volume statistics: Keep track of your SafeSky data usage — upload and download broken down by Today, Yesterday, 7 Days, 30 Days and All Time. - Ground tracking: After SafeSky registration you can choose whether to see air traffic on the map while on the ground. 6.1 Mar 19 New in Version 6.0: • SafeSky Integration – See other air traffic in real time on your map: paragliders, hang gliders, sailplanes, helicopters and more. Your position is shared so others can see you too. Free registration right in the app. • Traffic Radar Alarm – Get instant sound and vibration alerts when other air traffic approaches. The warning level automatically adapts to distance and closing speed. • Thermal Assistant (Experimental) – Your flight track is color-coded by climb and sink rates on the map. Automatically detects circling and switches to the thermal view. Includes wind direction and speed. • GPX & IGC Import – Import your previously flown flights as GPX or IGC files directly into the flight book. Use the + button in the flight book or "Open with" from the Files app. 6.0 Mar 12 - Fewer permissions on first launch – the app now only requests what is truly needed. - Apple Watch settings have been simplified for a cleaner overview. 5.0 Feb 1 • New 14-day free trial for all features. • Launch and landing sites now permanently free to view. 4.9 11/19/2025 From now on, you can see directly in the app which permissions are required on iPhone and Apple Watch – and what they are for. This way, you’ll always know which accesses are needed to fully enjoy all functions like altitude calculation, vario usage, and Bluetooth device connectivity. 4.7 08/14/2025 Minor adjustments for the latest iOS version 4.5 05/15/2025 For our motorized flying friends, we have implemented a new unit system for the display on Apple Watch and iPhone: Vertical Speed = ft/min (feet per minute) Speeds = Kts (knots) Altitude = ft (feet) 4.4 01/21/2025 As of now, the BlueFly Vario is supported. This allows you to use Vario One on an older iPhone in combination with one of the best hardware variometers. 4.3 11/05/2024 NEW FEATURE: From now on, you can upload your flights directly from the flight log to XContest. Of course, they will be displayed as verified IGC files on XContest. 4.2 09/19/2024 The heat map of the map function has been optimized 4.1 07/09/2024 The biggest update of all time. From now on, you can switch to a map view and still have all the important instruments in view. You can see the current wind direction from thousands of wind stations worldwide. Additionally, you can view airspaces and see where others have already found thermals using a heatmap. 4.0 07/03/2024 We made an optimization with the synching the time and prepared the upcoming map feature 3.4 06/02/2024 The upload to DHV-XC has been optimized and the future map function has been prepared :-) 3.3 04/14/2024 The algorithm between the barometer and the acceleration sensor has been optimized. 3.2 03/28/2024 You can now upload your flight directly from the flight logbook to DHV-XC 3.1 03/25/2024 1. a completely revised design 2. combination of air pressure sensor and acceleration sensor for even more precise climbing 3. automatic start and charge detection 3.0 02/20/2024 You can now record and export IGC files with your iPhone and Apple Watch 2.6 11/23/2023 The user interface was adjusted with the update to WatchOS 10. We have optimized our app for it. 2.5 09/28/2023 Bugfix for WatchOs 10 2.4 09/23/2023 VARIO ONE is now compatible with ActiveLook goggles, providing a hands-free heads-up display for paragliders. This innovative technology allows you to connect your ActiveLook smartglasses to Vario One and display climb, speed and altitude directly on the lenses. ActiveLook offers sunglasses that have a built-in display. By pressing a button in VARIO ONE, connect your smart sunglasses and have Vario data projected right in front of your eye! This works for Apple iPhone and Apple Watch. 2.3 09/18/2023 Welcome to the biggest update for your security! With this update you get: 1. 5-Points Check We have added the 5-point check for you, which will appear before you can start a flight. 2. last calculation of the wind indicator It makes a difference if the wind was calculated now or an hour ago. So that you know exactly when the wind was last calculated, this is displayed as a small timer in the iPhone app and Apple Watch app. 2.2 08/23/2023 VARIO One - Your vario now becomes smart. A variometer belongs in the luggage of every paraglider pilot. Just like a helmet and the glider itself, that's for sure. If only these black blocks weren't such heavyweights - heavy in price, heavy to operate and heavy to carry. How smart would it be to have a variometer directly in your smart device, simply as an app? And one that is as precise and reliable as a professional variometer? Doesn't exist? Discover VARIO ONE, the smart variometer app, and find out here what VARIO ONE can do: First things first: 1. You get 2 apps for one price! An app for your iPhone AND the app for your Apple Watch. With both you can fly independently. The climb is indicated on the display by different beeps, just like with other Varios. 2. You do NOT need any other devices. The iPhone from version 12 and the Apple Watch from version 6 have very fine sensors (pressure socket). FUNCTIONS FOR iPhone App + Apple Watch App. Both apps can: ● Very precise acoustic variometer: due to the high-precision air pressure sensor, a climb is immediately audible. So you can react immediately and make the best possible use of the thermals. ● Frequency pitches and sound volumes adapt to the climb values: this means that even the smallest thermals can be found and you can react to larger ones in a relaxed manner. ● Display of altitude and speed above ground ● The display of the wind direction is rotating: this means that you can see which direction the wind is coming from at your current position. This is how you can avoid dangerous leeward situations ● Record your flights from the Apple Watch or iPhone as a GPS track and automatically upload them to your digital flight log. FURTHER FUNCTIONS of the iPhone app: The above features are all in the iPhone app. In addition: ● For your iPhone, the VARIO ONE app includes the ability to view your recorded flights. ● A glide ratio display is of course also included: so you can easily calculate whether you can reach a landing site or another destination, or whether it would be better to look for an alternative early on. ● Switch between white mode and dark mode: depending on your taste and the current lighting conditions. WHEN IS THE WATCH APP RIGHT FOR YOU? ● Are you a Hike & Fly fan? ● Safety is your top priority and you like to have a second variometer as a back-up? ● Are you looking for a very small vario with high-precision air pressure sensors and a rotating wind indicator? ● You have no more space in the cockpit or don't want to worry about another mount? ● You want to record your flights in GPX format? That's possible too! ------ Advantages over classic Varios: ● Extremely accurate sensors: the built-in GPS and barometer meet the highest precision requirements and easily outperform many hardware devices. ● Constant expansion of the two apps: We still have many ideas for expanding the range of functions and are continuously delivering new features. ● Intuitive to use: the VARIO ONE app is immediately understandable and easy to use. You won't find long and complicated instructions here. ------ You can try out all the functions for the iPhone app and Apple Watch app free of charge for the first 3 days. Within this time you can cancel or choose between different subscriptions. To cancel the 3-day trial subscription, simply delete the app and cancel the subscription at the following prompt. After this period, subscriptions are automatically renewed. 2.1 08/14/2023
Previous Versions
Here you can find the changelog of Vario One since it was posted on our website on 2023-10-09 12:48:03.
The latest version is 6.4 and it was updated on 2026-06-25 03:50:53. See below the changes in each version.
Vario One version 6.4
Updated At: 2026-06-03
Changes: Version History Vario now reacts even faster: A new filter architecture that combines the device's barometer and motion sensors lets you hear climbs the instant they start — without becoming jittery. 6.4 May 12 New: Pilot & Equipment now includes a Save button and clearer server sync. We also fixed a display issue when using large text sizes. 6.3 Apr 21 Mute vario before flight: The vario tone can now be configured to activate only after the flight timer starts. Perfect for keeping things quiet while preparing your lines before takeoff. 6.2 Apr 15 - SafeSky data volume statistics: Keep track of your SafeSky data usage — upload and download broken down by Today, Yesterday, 7 Days, 30 Days and All
Time.
- Ground tracking: After SafeSky registration you can choose whether to see air traffic on the map while on the ground. 6.1 Mar 19 New in Version 6.0:
• SafeSky Integration – See other air traffic in real time on your map: paragliders, hang gliders,
sailplanes, helicopters and more. Your position is shared so others can see you too. Free registration
right in the app.
• Traffic Radar Alarm – Get instant sound and vibration alerts when other air traffic approaches. The
warning level automatically adapts to distance and closing speed.
• Thermal Assistant (Experimental) – Your flight track is color-coded by climb and sink rates on the map.
Automatically detects circling and switches to the thermal view. Includes wind direction and speed.
• GPX & IGC Import – Import your previously flown flights as GPX or IGC files directly into the flight
book. Use the + button in the flight book or "Open with" from the Files app. 6.0 Mar 12 - Fewer permissions on first launch – the app now only requests what is truly needed.
- Apple Watch settings have been simplified for a cleaner overview. 5.0 Feb 1 • New 14-day free trial for all features.
• Launch and landing sites now permanently free to view. 4.9 11/19/2025 From now on, you can see directly in the app which permissions are required on iPhone and Apple Watch – and what they are for. This way, you’ll always know which accesses are needed to fully enjoy all functions like altitude calculation, vario usage, and Bluetooth device connectivity. 4.7 08/14/2025 Minor adjustments for the latest iOS version 4.5 05/15/2025 For our motorized flying friends, we have implemented a new unit system for the display on Apple Watch and iPhone:
Vertical Speed = ft/min (feet per minute)
Speeds = Kts (knots)
Altitude = ft (feet) 4.4 01/21/2025 As of now, the BlueFly Vario is supported. This allows you to use Vario One on an older iPhone in combination with one of the best hardware variometers. 4.3 11/05/2024 NEW FEATURE: From now on, you can upload your flights directly from the flight log to XContest. Of course, they will be displayed as verified IGC files on XContest. 4.2 09/19/2024 The heat map of the map function has been optimized 4.1 07/09/2024 The biggest update of all time. From now on, you can switch to a map view and still have all the important instruments in view. You can see the current wind direction from thousands of wind stations worldwide. Additionally, you can view airspaces and see where others have already found thermals using a heatmap. 4.0 07/03/2024 We made an optimization with the synching the time and prepared the upcoming map feature 3.4 06/02/2024 The upload to DHV-XC has been optimized and the future map function has been prepared :-) 3.3 04/14/2024 The algorithm between the barometer and the acceleration sensor has been optimized. 3.2 03/28/2024 You can now upload your flight directly from the flight logbook to DHV-XC 3.1 03/25/2024 1. a completely revised design
2. combination of air pressure sensor and acceleration sensor for even more precise climbing
3. automatic start and charge detection 3.0 02/20/2024 You can now record and export IGC files with your iPhone and Apple Watch 2.6 11/23/2023 The user interface was adjusted with the update to WatchOS 10. We have optimized our app for it. 2.5 09/28/2023 Bugfix for WatchOs 10 2.4 09/23/2023 VARIO ONE is now compatible with ActiveLook goggles, providing a hands-free heads-up display for paragliders.
This innovative technology allows you to connect your ActiveLook smartglasses to Vario One and display climb, speed and altitude directly on the lenses.
ActiveLook offers sunglasses that have a built-in display. By pressing a button in VARIO ONE, connect your smart sunglasses and have Vario data projected right in front of your eye! This works for Apple iPhone and Apple Watch. 2.3 09/18/2023 Welcome to the biggest update for your security!
With this update you get:
1. 5-Points Check
We have added the 5-point check for you, which will appear before you can start a flight.
2. last calculation of the wind indicator
It makes a difference if the wind was calculated now or an hour ago.
So that you know exactly when the wind was last calculated, this is displayed as a small timer in the iPhone app and Apple Watch app. 2.2 08/23/2023 VARIO One - Your vario now becomes smart.
A variometer belongs in the luggage of every paraglider pilot. Just like a helmet and the glider itself, that's for sure. If only these black blocks weren't such heavyweights - heavy in price, heavy to operate and heavy to carry. How smart would it be to have a variometer directly in your smart device, simply as an app? And one that is as precise and reliable as a professional variometer?
Doesn't exist? Discover VARIO ONE, the smart variometer app, and find out here what VARIO ONE can do:
First things first:
1. You get 2 apps for one price! An app for your iPhone AND the app for your Apple Watch. With both you can fly independently. The climb is indicated on the display by different beeps, just like with other Varios.
2. You do NOT need any other devices. The iPhone from version 12 and the Apple Watch from version 6 have very fine sensors (pressure socket).
FUNCTIONS FOR iPhone App + Apple Watch App. Both apps can:
● Very precise acoustic variometer: due to the high-precision air pressure sensor, a climb is immediately audible. So you can react immediately and make the best possible use of the thermals.
● Frequency pitches and sound volumes adapt to the climb values: this means that even the smallest thermals can be found and you can react to larger ones in a relaxed manner.
● Display of altitude and speed above ground
● The display of the wind direction is rotating: this means that you can see which direction the wind is coming from at your current position. This is how you can avoid dangerous leeward situations
● Record your flights from the Apple Watch or iPhone as a GPS track and automatically upload them to your digital flight log.
FURTHER FUNCTIONS of the iPhone app:
The above features are all in the iPhone app. In addition:
● For your iPhone, the VARIO ONE app includes the ability to view your recorded flights.
● A glide ratio display is of course also included: so you can easily calculate whether you can reach a landing site or another destination, or whether it would be better to look for an alternative early on.
● Switch between white mode and dark mode: depending on your taste and the current lighting conditions.
WHEN IS THE WATCH APP RIGHT FOR YOU?
● Are you a Hike & Fly fan?
● Safety is your top priority and you like to have a second variometer as a back-up?
● Are you looking for a very small vario with high-precision air pressure sensors and a rotating wind indicator?
● You have no more space in the cockpit or don't want to worry about another mount?
● You want to record your flights in GPX format? That's possible too!
------
Advantages over classic Varios:
● Extremely accurate sensors: the built-in GPS and barometer meet the highest precision requirements and easily outperform many hardware devices.
● Constant expansion of the two apps: We still have many ideas for expanding the range of functions and are continuously delivering new features.
● Intuitive to use: the VARIO ONE app is immediately understandable and easy to use. You won't find long and complicated instructions here.
------
You can try out all the functions for the iPhone app and Apple Watch app free of charge for the first 3 days.
Within this time you can cancel or choose between different subscriptions.
To cancel the 3-day trial subscription, simply delete the app and cancel the subscription at the following prompt.
After this period, subscriptions are automatically renewed. 2.1 08/14/2023
Vario One version 6.1
Updated At: 2026-03-19
Changes: - SafeSky data volume statistics: Keep track of your SafeSky data usage — upload and download broken down by Today, Yesterday, 7 Days, 30 Days and All
Time.
- Ground tracking: After SafeSky registration you can choose whether to see air traffic on the map while on the ground.
Vario One version 5.0
Updated At: 2026-02-01
Changes: - Fewer permissions on first launch – the app now only requests what is truly needed.
- Apple Watch settings have been simplified for a cleaner overview.
Vario One version 4.7
Updated At: 2025-08-14
Changes: Aug 14, 2025
Version 4.7
From now on, you can see directly in the app which permissions are required on iPhone and Apple Watch – and what they are for. This way, you’ll always know which accesses are needed to fully enjoy all functions like altitude calculation, vario usage, and Bluetooth device connectivity.
Vario One version 4.5
Updated At: 2025-05-15
Changes: May 15, 2025
Version 4.5
Minor adjustments for the latest iOS version
Vario One version 4.4
Updated At: 2025-01-21
Changes: Jan 21, 2025
Version 4.4
For our motorized flying friends, we have implemented a new unit system for the display on Apple Watch and iPhone:
Vertical Speed = ft/min (feet per minute)
Speeds = Kts (knots)
Altitude = ft (feet)
Vario One version 4.3
Updated At: 2024-11-05
Changes: Nov 5, 2024
Version 4.3
As of now, the BlueFly Vario is supported. This allows you to use Vario One on an older iPhone in combination with one of the best hardware variometers.
Vario One version 4.2
Updated At: 2024-09-19
Changes: Sep 19, 2024
Version 4.2
NEW FEATURE: From now on, you can upload your flights directly from the flight log to XContest. Of course, they will be displayed as verified IGC files on XContest.
Vario One version 4.1
Updated At: 2024-07-09
Changes: Jul 9, 2024
Version 4.1
The heat map of the map function has been optimized
Vario One version 4.0
Updated At: 2024-07-03
Changes: Jul 3, 2024
Version 4.0
The biggest update of all time. From now on, you can switch to a map view and still have all the important instruments in view. You can see the current wind direction from thousands of wind stations worldwide. Additionally, you can view airspaces and see where others have already found thermals using a heatmap.
Disclaimer
Official App Store Link
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