Professional Aviation Navigation at Your Fingertips — now with a moving map, worldwide airspace boundaries, and visual approach guidance.

Aviation GPS transforms your iOS device into a professional-grade aviation navigation instrument. Built for pilots, aviation enthusiasts, and flight training, it delivers real-time bearing, distance, course deviation, and a full moving map with worldwide airport, navaid, and airspace data — all with aviation-standard precision.

Modeled on panel-mount GPS navigators pilots already know, Aviation GPS pairs a clean, FMC-style data display with a genuine moving map: pan, zoom, and declutter it like the unit in the panel, with HSI/CDI guidance, multi-waypoint flight planning, and a dedicated Visual Approach mode for a 3° glidepath reference on approaches without an ILS.

KEY FEATURES:

• Moving map with 23-step zoom range, pan, continuous pinch-zoom, and multiple declutter levels

• Worldwide airspace boundaries (Class B/C/D, Restricted, Military, and more) — tap any boundary for its name, class, and floor/ceiling limits

• To-scale runway rendering at close-in ranges, including parallel runways, colored by surface type

• Visual Approach mode: lateral and vertical glidepath guidance to any runway, no ILS required

• OBS mode for flying a selected course/radial to any waypoint

• Multi-waypoint flight planning with automatic leg sequencing, DIRECT TO, and a unified waypoint info page

• HSI/CDI course deviation indicator with auto-scaling sensitivity

• Real-time GPS navigation to 55,000+ airports and 10,000+ navaids worldwide

• Nearest (NRST) search for airports, navaids, and airspace

• Professional 6-panel data display with configurable layouts (2x2 to 2x4)

• Multiple compass modes: Track, Heading, or Auto-switching, plus RMI and HSI styles

• Destination info with runway diagrams, elevations, and radio frequencies

• World Magnetic Model declination correction for precise magnetic bearings

• Background map layers: coastlines, rivers, roads, and cities, independently configurable

• AutoZoom automatically tightens map range on approach to your destination

• Smart search with autocomplete for airports and navigation aids

• Professional aviation typeface

• X-Plane flight simulator integration via XGPS protocol, plus a built-in demo/playback mode

• Portrait-optimized interface for cockpit and handheld use

FLIGHT PLANNING:

• Build routes with unlimited waypoints — airports, navaids, or custom coordinates

• Automatic waypoint sequencing as you pass each fix

• Per-leg and total route distance and ETE, with cumulative distance per waypoint

• DIRECT TO any waypoint at any time, with automatic return to the active flight plan

• Coordinate waypoints with custom names for off-airway fixes, saved and reusable

• Activate, suspend, or clear your plan at any time

NAVIGATION DATA:

• 55,000+ airports with complete runway and frequency information

• 10,000+ navigation aids (VOR, NDB, TACAN, DME)

• Real-time bearing and distance calculations using great circle navigation

• Magnetic declination correction using NOAA World Magnetic Model

• ETA calculations with timezone detection and local time display

PROFESSIONAL FEATURES:

• Configurable auto-switching between track and heading modes

• Vertical speed monitoring with precision filtering

• Vertical glidepath deviation gauge for Visual Approach mode

• GPS coordinate display

• Instant-response touch interface with visual feedback

• Aviation-standard color coding and typography

Perfect for flight training, cross-country navigation, airport familiarization, and aviation education. Built-in worldwide aviation database with no internet required.

The moving map is the core navigation display, showing your aircraft's position relative to every airport, VOR, and NDB on the route, with a full flight-plan overlay.

How to Read the Map

• The aircraft symbol sits at your current position (or the panned reference point, if you've dragged the map).

• A magenta line traces the active leg — either a DIRECT TO course or the current flight plan leg. Inactive/upcoming flight plan legs are drawn in white so the active leg is always unambiguous at a glance.

• Airport symbols are a filled magenta circle with a white line through it indicating the airport's longest runway direction — useful for judging approach alignment before you're close enough to see the runway rendered to scale.

• Navaids use standard sectional-chart-style symbols: a hexagon with a center dot for VOR, a plain circle for NDB, distinguishing types at a glance without needing to zoom in and read labels.

Map Controls

• IN / OUT buttons step through the GNS 430's own 23-level range table (500ft to 2000NM), and a pinch gesture zooms continuously between steps.

• The range readout (e.g. "150NM") in the bottom-left always reflects the current full-width span of the display.

• DCLTR cycles through decluttering levels, progressively hiding roads, cities, and airspace to reduce clutter at wide ranges.

• The compass-arrow button in the top-right recenters the map on your current position when panned, or cycles map orientation (North Up / Track Up / DTK Up) when already centered.

Flight Plan Integration
The active flight plan is always visible in the lower section (FPL tab) beneath the map, showing each leg's distance, cumulative distance, magnetic course, and ETA in Zulu time — so you can cross-reference the map picture against the plan without switching screens.

Aviation GPS renders worldwide controlled and special-use airspace directly on the moving map — not just as decoration, but as a genuinely interactive layer.

How to Access

• Airspace boundaries are drawn automatically once you're within each category's configured display range (adjustable per category in SET).

• Tap anywhere inside a boundary to select it. If boundaries overlap (e.g. a small Class D CTR sitting inside a larger Class B/TMA sector), the smaller, more specific airspace is selected — matching what a pilot actually needs to know first.

Information Displayed

• Name (e.g. "LONDON TMA 9")

• Classification (e.g. "CLASS B / TMA")

• Vertical limits: ceiling and floor, each shown in the correct native format — flight level (e.g. "FL195") or feet with reference datum (e.g. "5500FT MSL" or "GND" when the floor is the surface)

Visual Highlight
The selected boundary is redrawn in bold, in the same color as its category, so it's unambiguous which shape the info panel refers to even when several boundaries overlap on screen. Categories are color-coded: Class B/TMA (blue), Class C/TCA (magenta), Class D (cyan), Restricted (orange-red), Military (amber), Other (green) — Restricted and Military boundaries are additionally dashed.

Tips

• Tap the same boundary again, or tap empty space, to dismiss the panel.

• This is purely informational — selecting airspace does not affect navigation or the flight plan.

DATA FIELDS Configuration

  Each data field in the grid can be customized by tapping on it in the main screen:

  Available Field Types:

  - DESTINATION - Selected airport/navaid identifier

  - DIS - Distance to destination (NM/MI/KM based on unit setting)

  - BRG - Magnetic bearing to destination

  - HDG/TRK (AUTO) - Automatic heading/track switching

  - DEVICE HDG - Device magnetic compass heading only

  - TRK - GPS track over ground only

  - GS - Ground speed

  - ETE - Estimated Time Enroute

  - ALTITUDE - GPS altitude

  - VERTICAL SPEED - Rate of climb/descent

  - VERT SPEED REQ - Required VS to reach destination +1000ft

  - TIME LOCAL - Current local time

  - TIME UTC - Current UTC/Zulu time

  - ETA DEST - Estimated Time of Arrival

  - POSITION - Current GPS coordinates

  - BATTERY - Device battery percentage

  - OFF - Disabled/blank field

The WPT INFO page is the single, unified destination for waypoint detail, no matter where you came from — a flight plan row, a NRST search result, a FIND WPT lookup, or a tap on the map.

How to Access

• Tap any waypoint row in the FPL or NRST list.

• Tap a navaid or airport symbol on the map, then tap the info bar that appears above the map.

• Use FIND WPT (top-right button) to jump straight to any waypoint by identifier.

Information Displayed

• Identifier, full name, and simplified type (AIRPORT, VOR, NDB, etc.) in magenta

• Position in decimal degrees (POS)

• Live bearing and distance from your current position (BRG/DIS), updating in real time

• For airports: every runway, listed as combined ident (e.g. "04-22"), length with your configured unit, and surface code (ASP = asphalt, GRS = grass, CON = concrete, etc.)

• For airports: all published radio frequencies (tower, ground, approach, ATIS)

• For airports with runway data: a small schematic runway diagram, all runways drawn through one shared reference point (the database doesn't carry per-runway coordinates, so this is a schematic, not a to-scale rendering) oriented by each runway's actual heading

Action Buttons

• D→ (magenta): DIRECT TO this waypoint immediately

• +FPL (green): add this waypoint to the current flight plan, shown only if it isn't already in the plan

• LEG→ (green): activate this waypoint as the current leg, shown only if it's already in the flight plan

• WPT with a strike-through (red): remove this waypoint from the flight plan, shown only if it's currently in the plan

• DEL WPT (red): permanently delete a saved custom (+MAP-derived) waypoint, shown only for user-created coordinate waypoints not currently in the flight plan

NRST answers "what's near me right now" — the fastest way to find a diversion airport, the nearest navaid to identify your position, or check for nearby restricted airspace.

How to Access

• Open the NRST tab in the lower section.

• Filter results using the type buttons: ALL, APT (airports), VOR, NDB, USR (your own saved waypoints).

Result Information
Each row shows:

• Identifier (large) and simplified type (in magenta) below it

• A small directional arrow glyph pointing toward the fix, alongside its exact magnetic bearing

• Distance in nautical miles

Results are always sorted nearest-first and update live as your position changes, so the list re-sorts automatically as you fly.

Selection
Tap any row to jump straight to that waypoint's full WPT INFO page, with DIRECT TO and +FPL one tap away — you never need to re-search or re-select from a separate screen.

At close map ranges, Aviation GPS switches from a generic airport symbol to the airport's actual runway layout, drawn to true scale and orientation — the same behavior as a panel-mount GPS.

How It Works

• Automatic once the map range is 5NM or tighter (no setting to toggle — it simply replaces the airport symbol at that zoom level).

• Each runway is drawn as a filled strip at its real length and width relative to the map scale, with a labeled box at each end showing its ident (e.g. "16", "34").

• Paved runways render as a solid white strip with a black dashed centerline; grass/soft runways render as a solid green strip with a white dashed centerline — matching real-world sectional chart convention for surface type.

• Genuine parallel runways (e.g. two separate paved strips in the same direction) are drawn side by side, offset by a representative real-world spacing, rather than overlapping. Where an airport's data lists both a paved and a grass runway in the same direction (a common data-quirk representing one physical strip twice), only the paved one is shown.

Reading the Display

• The active DIRECT TO or flight-plan leg line continues to draw through the runway layout in magenta, so you can see your inbound course relative to the actual runway.

• An "OVERZOOM" label appears at ranges tighter than the underlying database's effective resolution — informational only, the runway geometry itself remains accurate.

The DATA tab (lower section) is a dedicated 8-field data grid for anything beyond the core 6 fields already on the map pages — GPS diagnostics, vertical speed, magnetic variation, and more.

How to Access
Tap DATA in the lower section's tab bar.

Fields Shown (each independently configurable)

• DEST: current destination identifier (magenta border, cyan text)

• ETE / ETA: time en route and estimated time of arrival, ETA shown in Zulu (UTC) time

• VS: vertical speed in feet per minute, precision-filtered to avoid GPS altitude noise

• DIS: distance to destination

• GPS ACC: horizontal and vertical GPS accuracy estimates, in meters — useful for judging position confidence

• MAG VAR: magnetic variation at your current position (used for all true-to-magnetic bearing conversions)

• GPS ALT: raw GPS altitude in feet

Every field on this page can be reassigned to a different data type via the field selector, so pilots can build the exact readout they want rather than being locked into a fixed layout.

The HSI page is the primary precision-navigation display, combining a rotating compass card with a course deviation needle in the classic aviation HSI format.

Layout

• DTK (desired track) and TRK (actual ground track) shown top-left and top-right, with GS and DIS at the bottom — the four numbers a pilot cross-checks most often while established on a course.

• The compass card rotates to keep your current track at the top, with a magenta course needle showing the selected course and small deviation dots indicating how far off course you are.

• HSI / OBS / RMI buttons on the left/right switch between the three primary navigation presentation modes: HSI (course deviation to a waypoint), OBS (manually selected course/radial), and RMI (relative bearing pointer, shown in magenta when active).

• VIS APCH (top-right) arms Visual Approach mode. It stays visible but dimmed and unresponsive when your destination is a plain waypoint, out of range, or has no runway data — exactly like an avionics unit greys out a mode that isn't currently available, rather than hiding the button and making the interface change shape.

The SET tab (lower section) is the app's full settings page — everything from units and display preferences to navigation behavior and the map's airspace/waypoint filtering lives here, grouped into compact single-line rows so the whole page stays scannable in one scroll.

Sections Include

• General: button click sound, DEMO MODE (GPX-based simulated flight for practicing without a real GPS signal), GPS source (device GPS vs. X-Plane simulator via XGPS)

• Map background layers: sea/land fill, rivers, roads (with tiered detail: freeway only / freeway+highway / all), cities (tiered by population), each with its own independent display range

• Map behavior: default map orientation, per-page AutoZoom (automatically tightens range on approach to destination), own-ship track line (off, or a projected leader line by fixed distance or fixed time)

• Airspace: on/off and display range per category (Class B/TMA, Class C/TCA, Class D, Restricted, Military, Other) — shown in the earlier screenshot

• Waypoint display ranges: independent max range per waypoint category (active flight plan, large/medium/small airports, intersections, NDB, VOR, user waypoints), so low-priority symbols don't clutter a wide-range view

• Units: distance (NM/km/mi), speed (kt/mph/km/h), altitude (ft/m), runway length (ft/m)

• Navigation behavior: compass reference (magnetic/true), auto speed threshold and compass auto-switching (track vs. heading mode), HSI/CDI sensitivity, minimum vertical speed displayed, VS and GPS altitude rounding

• Search & database filtering: search result sort order, and toggles for which airport types appear in search/NRST (national, other, closed airports, navaids)

• Display style: compass style (multiple rotating-card presentations), position symbol, FPL ETA time zone (UTC or local), which data fields appear on the compass page

• LOAD DEFAULT buttons at the bottom to reset any section back to factory values

Every setting here persists across app launches, so a pilot can configure the app once — units, ranges, declutter defaults — and have it come back exactly as left every time.

Visual Approach gives lateral and vertical guidance to any runway threshold on a standard 3° glidepath — without needing a published ILS or GPS approach.

How to Access

• Available only when a destination airport with runway data is within 15NM (the VIS APCH button lights up green and becomes tappable once in range).

• Tapping VIS APCH opens a runway picker listing every runway end; selecting one arms guidance for that landing direction.

Display

• The HSI needle (magenta) shows lateral deviation from the extended runway centerline, exactly like an ILS localizer needle.

• A dedicated vertical deviation gauge appears beside the compass card (green needle, cyan reference dots either side) showing deviation above or below the 3° glidepath — fly toward the needle, just like a real glideslope indicator.

• DTK reflects the runway's inbound course; DIS counts down to the threshold.

This mode automatically disarms if you climb back out past 15NM (a safety net for a go-around) or turn HSI off, and is mutually exclusive with OBS mode — arming one disarms the other, since both drive the same needle.