The basics, in the order you need them.
Start and mount
Open the app, read the safety notice, tick the box and tap OPEN WINGSLEVEL. Keep the phone
still while ALIGNING shows (about 5 seconds). Mount it upright, facing you, on a charging cable.
The app stays in portrait and does not turn in steep turns. For a sideways mount, choose
Settings → Screen Orientation → Landscape, then level the horizon again.
Check the GPS
The GPS icon at the top left of the attitude turns green with a good fix,
yellow with a weak one and red with none. Wait for green before taxiing.
Level the horizon
On the ground, in the mount: Settings → Level Horizon (Hold Still). Keep still until
LEVEL: captured. The app learns by itself if the phone points slightly left or right of the nose,
on the takeoff roll. After moving the mount, tap Reset Nose Alignment. Flying a taildragger?
First set Taildragger: Nose Up on the Ground to its ground angle, so level flight reads level.
Read the instruments
Attitude in the middle, ground speed on the left tape, GPS altitude and vertical speed on the
right, turn indicator and slip ball below. A red X means a sensor or the GPS is lost: never trust
a value it covers.
Go Direct-To
Tap the DIRECT key on the HSI, then Nearest Airports, Airports (search by ICAO
code or country), Nearest Navaids or Navaids, and tap one. Follow the magenta course;
distance, ETA and ETE show at the top. Tap that banner for runways and frequencies. CANCEL
clears it.
Follow the sign
During a Direct-To a sign with the code and distance stands on the destination in the attitude view.
The green circle shows where the aircraft is really going: turn until it sits on the sign. If the
destination is behind you, an arrow at the side shows which way to turn, for example 158° R.
Runway approach path
Line up with a runway within 5 NM and the attitude view shows its centreline and gates down a 3° path
by itself. Fly the green circle through the gates. Tap RWY at the bottom left for the parallel
runway, again to hide it. During a Direct-To, the RWY AUTO chip under the airport picks the runway
in advance. A VFR aid only.
Set the heading bug
Drag your finger around the outer ring of the HSI to move the heading bug. Dragging inside the rose
turns the compass card, to match it to your aircraft's compass. CARD under the heading shows
that alignment.
Set the altitude bug
Tap the altitude tape. Pick the altitude with −1000, −100, +100 and
+1000, then tap Set. The orange bug shows on the tape and as ALT BUG under it.
Tap the tape again to change it or Clear it.
Calibrate the compass
If the heading is wrong, tap Settings → Start Mag Cal, take the phone out of its mount and
slowly draw a figure-of-eight, turning it face up, face down and on each side. The bar fills as you
go; the app says Compass calibrated and shows the new heading when it is done.
Night and full screen
Settings → Night Mode (Red) turns the instruments, buttons and dialogs red on black; the GPS
icon then shows its state by brightness, brightest with no fix. The button at the top right of the attitude makes it full screen with a heading tape. Turn the phone sideways for attitude and
HSI side by side.
Synthetic vision
Settings → Enable Synth Vision shows the terrain around you: green well
below, yellow near your altitude, red at or above it, with runways, lakes and roads. If the GPS is lost,
the terrain is estimated for 30 seconds (GPS LOST), then switched off until the GPS returns.
Keep it in front
The sensors pause while another app is on screen, so keep WingsLevel open in flight. The screen
stays on by itself; keep the phone charging on long flights.
Every feature in detail, with screenshots (runway approach path, terrain downloads, data and
app updates, flight recorder, warnings and troubleshooting): WingsLevel user manual (PDF).