Know-Ware

flywyn for iPhone

Offline GPS at 35,000 feet.

Wondering how fast you're going, how high you are, or how far you are from your destination? flywyn shows you, using only your iPhone's built-in GPS. No wifi or cell signal required.

No ads No subscription No wifi required
flywyn on iPhone showing an offline map of O'Hare airport with latitude 41.98, longitude -87.90, altitude, speed, and a four-bar GPS signal indicator

What you see

Everything the seatback screen shows, on your own phone.

Position

Live latitude and longitude, with a GPS signal meter that shows how accurate your fix is.

Altitude

Height above sea level in feet or meters, straight from the GPS.

Ground speed

How fast you're actually moving over the ground, in mph or km/h.

Distance to destination

Pick your arrival airport by code, name, or city, and see how many miles remain.

Time to arrival

An estimate based on your current speed that updates continuously as you fly.

Your flight path

A live map with your great circle course and a breadcrumb trail you can save when you land.

flywyn with Detroit (DTW) selected as the destination, showing a dashed course line, 234 miles to go, and a prompt to download detailed airport maps

How it works

Download the maps on the ground. Use them in the air.

Your iPhone's GPS listens to satellites directly, so it works in airplane mode. flywyn stores its maps on your phone before you board, so the map works too.

  1. Open flywyn once on wifi

    On first launch it downloads a world map for offline use, from continents down to city level.

  2. Pick your destination before you board

    flywyn then downloads street-to-runway detail around where you are and where you're going.

  3. Fly with airplane mode on

    Watch your speed, altitude, distance, and time to arrival. A window seat gives the best GPS signal.

  4. Save your trip when you land

    Tap stop to save your breadcrumb trail as a file you can find in the Files app.

About Know-Ware

Useful apps for the phone in your pocket.

Know-Ware LLC is a Connecticut company that builds iPhone apps that make the hardware you already carry more useful. We focus on simple tools that do one job well and respect your privacy.

flywyn is our first app. More are on the way.

Company
Know-Ware LLC
First app
flywyn for iPhone
Status
Coming soon to the App Store

Privacy

Your location stays on your phone.

flywyn has no accounts, ads, or analytics, and never sends your location to us. Read the full privacy policy.

Contact and support

Questions, feedback, or a problem with flywyn?

Email us and we'll get back to you. If something isn't working, you can attach the diagnostic log from flywyn's help screen (tap ⓘ, then Send Diagnostic Log).