VARIO One – Your smart variometer for iPhone and Apple Watch. As precise as a pro vario. As simple as an app. No extra hardware.
VARIO One combines a pressure sensor, an accelerometer and GPS into a full-featured variometer — right on your iPhone and Apple Watch. Both apps work independently and signal lift with acoustic beeps. Optionally connect an external Bluetooth vario for even more precision.
Try all features free for 14 days.
VARIOMETER
- Instantly audible lift by combining pressure and acceleration sensors.
- Internal barometer (baro + IMU fusion) — a calmer, more precise signal.
- Display of altitude, speed and glide ratio.
- Barometric altitude with QNH — set directly on the flight screen.
- Climb tone threshold freely configurable (down to −0.5 m/s).
- Rotating wind direction indicator.
FLIGHT RECORDING
- Automatic recording as GPS and IGC track.
- Digital logbook with map view and statistics.
- Automatic upload to DHV-XC and XContest.
- Automatic take-off and landing detection.
MAP
- Airspaces downloadable per country or importable as OpenAir files.
- Current wind from thousands of weather stations.
- Take-off and landing sites — permanently free to view.
AIRSPACE MAP & ALERTS
Download airspace maps for any country right in the app from OpenAIP. Or import your own OpenAir files (classic as well as Naviter 1.0/2.0). All airspaces are shown as a vector map; tap for details, altitude profile and legend. As you approach, VARIO One warns you with a voice announcement and a configurable lead time — including a snooze function and automatic escalation.
REAL-TIME AIR TRAFFIC WITH SAFESKY
See nearby aircraft — paragliders, hang gliders, sailplanes, helicopters — using SafeSky, including other SafeSky users on the map. ADS-B, FLARM, OGN, PilotAware, and other supported traffic sources — all in one real-time view. Coverage depends on the availability of compatible transmitters and network reception.
BUDDY FLYING – FLY TOGETHER, EVERYONE IN VIEW
With Buddy Flying you see your flying partners live on the map — perfect for a shared cross-country flight or a day at your local mountain. One person creates a group and shares the code, the others join. As soon as "Sharing" is active, you all see each other in real time.
For each buddy you see position with distance and bearing, absolute altitude and altitude relative to you, current climb and an 8-second average, plus speed. When a buddy is climbing, you see it in their climb rate — and know where the thermal is. A colour scale shows how their climb compares to yours.
EXTERNAL BLUETOOTH VARIOS
Connect your device wirelessly to use it as your vario signal source: BlueFly Vario (multiple protocols), Mipfly MipBipX & MipTrack, Stodeus BlueBip & UltraBip, Skytraxx (BLE). Connect any time from the settings — no onboarding needed.
THERMAL ASSISTANT
Your flight track is coloured live by climb and sink values — so you instantly see where the best thermal is in the turn. The app automatically detects circling and switches to the thermal view. Including wind direction and speed.
IMPORT FLIGHTS
Import previously flown flights as GPX or IGC files straight into the logbook — via the + button or via "Open with" from the Files app.
APPLE WATCH
- Standalone vario with precise pressure sensors.
- Ideal for hike & fly, as a backup or when there's no room in the cockpit.
- Flight recording in GPX and IGC format.
New features are added regularly. Try everything free for 14 days. Take-off and landing sites remain free afterwards too. The subscription renews automatically and can be cancelled any time.
I don’t want to try for 3 days free. For sure you have the right to charge for so amazing app, but I had to download and then discover the prices.
Developer Response
Hello fm6000,a comparable hardware vario cost more than 500 dollar.Furthermore we have developvers that are continuously work on new features and they need to be paid. Otherwisewe we would bring it out once and we would never continue to bring out new features.Best regardsTino
Your own climb tone
Two sounds to choose from – and in the Sound Studio at vario-one.com you can design your own and bring it into the app.
Your vario's battery level
Vario One shows you how much charge your XC Tracer has left: on the flight screen and in the device settings.
Version 7.3
The developer, Leobalo GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Leobalo GmbH
Size
111.1 MB
Category
Navigation
Compatibility
Requires iOS 15.6 or later.
iPhone Requires iOS 15.6 or later.
iPod touch Requires iOS 15.6 or later.
Apple Watch Requires watchOS 8.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.