nGeneSubwayWatch

Plan subway routes in Seoul, Incheon, and Fukuoka on iPhone and Apple Watch, track estimated progress, receive destination alerts, and sync a custom color theme.

nGeneSubwayWatch brings subway route planning and estimated destination tracking for Seoul, Incheon, and Fukuoka to iPhone and Apple Watch.

Choose Korea or Japan and a supported city from iPhone Settings. Seoul and Incheon support Korean and English, while Fukuoka also supports Japanese. The selected network is saved on iPhone and mirrored to a paired Apple Watch.

Search directly on either device, compare route suggestions, review transfers and stops, and start tracking from the screen already in use. When paired devices are reachable, the latest network, route, selected option, settings, and active trip state are synchronized locally and reconciled using the latest available state.

Personalize the app with 25 color swatches, including standard and neon accents. The selected color is applied to primary controls and accents on iPhone and is mirrored automatically to Apple Watch. The multicolor swatch restores the platform-default accent.

During an active trip, the app estimates progress along the selected route and displays the estimated current station, next station, remaining route distance, and overall progress. A circular Apple Watch complication keeps the remaining distance visible at a glance, while its outer ring represents route progress and changes color according to the remaining-distance range.

Destination alerts are available at 5 km, 2 km, 1 km, 500 m, 300 m, and 100 m. Each level can be enabled independently and previewed from Settings. Sound and vibration can be controlled separately, and the number of pulses increases as the destination approaches.

An inactivity-based Auto Stop timer can end trip tracking after 5 minutes, 10 minutes, 30 minutes, 1 hour, or 3 hours. It can also be disabled with Never. Opening or interacting with the app resets the countdown.

Features: • Route planning for Seoul, Incheon, and Fukuoka • Standalone route search and estimated trip tracking on Apple Watch • Route search and estimated trip tracking on iPhone • Korean and English interface and station search, plus Japanese for Fukuoka • 25 theme swatches with standard and neon colors • Local network, theme, route, settings, and trip-state persistence • Latest-state synchronization between paired devices • Start Trip and Stop Trip controls on both devices • Estimated current station, next station, remaining distance, and route progress • Circular Apple Watch complication for remaining distance and progress • Individually configurable 5 km, 2 km, 1 km, 500 m, 300 m, and 100 m alerts • Independent sound and vibration controls with alert previews • Nearby-station discovery using device location • Multiple route suggestions with transfer details • Recent trip history on iPhone and Apple Watch • Automatic trip stopping after a selected inactivity period

Privacy: Route calculations are performed on-device. Location is used only for nearby-station discovery and estimated trip progress. Network, route, settings, theme, and trip state may be synchronized locally between a paired iPhone and Apple Watch. No account or subscription is required, and no personal data is sent to external servers or shared with third parties.

Trip position and remaining distance are estimates based on device location and the selected route, not live train-position data. GPS accuracy may be reduced underground. Apple Watch complication refresh timing is managed by watchOS.