Off 2
Your offline flight companion — a NASA-imagery 3D globe, real-time ETA, airport details, and day/night crossings without internet.
- Offline flight tracking on a NASA Blue Marble 3D globe — no internet required at any point
- Real-time ETA, airport details on zoom, and day/night crossing visualization
- Available on iPhone, iPad, Mac, Apple Vision Pro, and Apple Watch
Off 2 is a flight companion app built for pilots, frequent travelers, and aviation enthusiasts who want meaningful flight data without depending on connectivity. Whether you are crossing the Pacific or flying in and out of radar coverage, Off 2 gives you a live picture of your flight without touching the internet.
The 3D globe
The centerpiece of Off 2 is a high-quality 3D globe rendering your current position, route, and the live day/night terminator. As of version 2.0 it is painted with NASA Blue Marble satellite imagery by day and Black Marble city lights by night, blending at the real terminator for a beautiful, realistic Earth. Unlike map-based apps, the globe gives you the true geometry of your flight path — great circle routes look like great circles, not distorted arcs.
What’s new in version 2.0
- NASA Blue Marble / Black Marble globe — gorgeous bundled day and night imagery that blends at the live terminator.
- Airport details on zoom — zoom in to see runway length, elevation, and aircraft suitability, with your choice of runway-length unit (feet, meters, NM, statute miles).
- Clearer local time — open-ocean zones now show a plain UTC offset (e.g.
UTC-12) plus a+1/-1day indicator at the date line, on the app, Lock Screen, Dynamic Island, and Apple Watch. - Accurate day/night crossings — sunrise/sunset crossing markers now account for your cruise altitude, verified against NOAA data.
- Smarter, steadier ETA — an FMS-style estimate models climb, cruise, and descent (including the 250 kt speed limit below 10,000 ft) with wind correction, so arrival time stays stable instead of jumping.
- 33 languages and many refinements.
What Off 2 shows
- Position: Continuous GPS-based tracking updated in real time
- ETA and distance: Dynamic, FMS-style calculations as your flight progresses
- Airports on zoom: Runway length, elevation, and aircraft suitability at appropriate zoom levels
- Day/night crossings: Real-time terminator with crossing time predictions
- Local & UTC time: Clear local and UTC time, with a day indicator when you cross the International Date Line
- Route visualization: See where you’ve been and where you’re going on the globe
Apple ecosystem
Off 2 runs natively across the Apple ecosystem:
- iPhone and iPad — full interactive globe experience
- Mac — native macOS app, same capabilities
- Apple Vision Pro — spatial computing interface
- Apple Watch — flight complications (ETA, distance) added in v1.6; aircraft WiFi integration added in v1.4
Who uses Off 2
Pilots who want a clear offline picture of their own flight. Frequent travelers curious about their route geometry. Anyone who wants real data rather than an airline’s entertainment screen map.
Frequently asked questions
Does Off 2 require an internet connection?
No. Off 2 is fully offline. The NASA globe imagery, position tracking, ETA calculations, airport data, and day/night crossing display all work without any network connection — ideal for long-haul flights with limited or no connectivity.
How does Off 2 track position without internet?
Off 2 uses the device's GPS receiver and onboard sensors. No external data source is needed.
What is the NASA Blue Marble globe?
In version 2.0 the globe is rendered with NASA Blue Marble satellite imagery on the day side and Black Marble city lights on the night side, blending right at the real day/night terminator — a realistic Earth that updates as you fly. All imagery is bundled, so it works fully offline.
Can I see airport information?
Yes. Zoom in and airports reveal their runway length, elevation, and suitability for your aircraft, with color-coded markers. You can choose the runway-length unit (feet, meters, NM, or statute miles) in Settings.
Is Off 2 available on Apple Watch?
Yes. Apple Watch support (added in v1.6) includes flight complications, so you can glance at ETA and distance without reaching for your phone.
What is the day/night crossing feature?
Off 2 renders the current day/night terminator line on the globe in real time, showing you exactly when your flight will cross from day into night or vice versa — useful for planning sleep and managing fatigue on long sectors.
How does Off 2 handle time zones and the date line?
Off 2 shows your local time and UTC together, derived from your GPS position. Over open ocean it labels the zone as a clear UTC offset (for example UTC-12) that matches the abbreviation, and a small +1 or -1 indicator appears when your local date differs from UTC — so crossing the International Date Line is never confusing.