Apps for the road,
and for the sound.

DS Guitar Chord

Chords · metronome · tuner · ukulele

It’s a shame when the urge to practice dies while you’re still hunting for the chord.

Search most chords quickly and easily. Barre chords are supported, tapping a chord diagram plays its sound, and photo fingering guides show you exactly how to hold each one. A metronome and a tuner are built in.

Screens — scroll sideways

• Guitar & ukulele chord search
• Barre chords
• Photo fingering guides
• Techniques — play 12 assigned chords
• Simple metronome
• Accurate guitar tuner

Road CCTV Korea

Expressways & national roads

Whether the road is jammed is a thing you’re better off seeing with your own eyes.

Finds CCTV cameras along Korea’s expressways, national roads, and near your location, and shows you the live view. Built on open data published by the Ministry of Land and the National Police Agency.

Screens — scroll sideways

• Traffic status by expressway
• All-cameras view (zoomable)
• Expressway, national road & city CCTV
• Route tab — suggested & alternate routes
• Favourite cameras and routes

Korea Subway Map

Live arrivals nationwide

A subway map should be big and sharp. That was the whole starting point.

Arrival times and timetables for the Seoul metropolitan area, Busan, Daegu, Gwangju and Daejeon. Route search puts the shortest trip and the fewest transfers side by side so you can pick.

Screens — scroll sideways

• High-resolution route map
• Express line support
• Live arrivals with train numbers
• Shortest route / fewest transfers
• Search by departure or arrival time
• Nearby stations · initial-consonant search

Public Transit

Seoul area buses & subway

Miss one bus and there goes ten minutes of your day.

Bus and subway arrivals across Seoul, Incheon and Gyeonggi in one place. Star the routes and stops you actually use, and they’re the first thing you see when the app opens.

Screens — scroll sideways

• Bus arrival alarms
• High-resolution subway map
• Live arrivals for the Seoul area
• Nearby stops on a map
• Favourite routes & stops

Seoul Bus Smart

Seoul bus routes & stops

Built by keeping what the old bus apps got right, and fixing what they didn’t.

Seoul bus route and stop information, laid out so the thing you need is the thing you see first. Pick just the routes you ride at a stop and keep them in Favourites.

Screens — scroll sideways

• Bus arrival alarms
• Congestion level display
• Favourites with edit mode
• Recent searches
• Initial-consonant search
• Nearby stops · map view

Busan Bus & Subway

For getting around Busan

Busan has its village buses, and they deserved to be in here too.

Bus arrival information, subway timetables and routes for Busan, including village buses. Keep the stops, routes and stations you use in Favourites and check them at a glance.

Screens — scroll sideways

• Busan bus arrival information
• Village bus support
• Subway timetables & routes
• Favourite stops, routes & stations
• Nearby stop search
• Subway route map

Hand Piano

88 keys · 128 instruments

Half the fun is switching the instrument and playing the same line again.

Switch between instrument sounds with an intuitive UI and play on a smooth, responsive keyboard. Key width is adjustable, and recordings save instantly so you can listen back anytime.

Screens — scroll sideways

• 128 instrument sounds
• Recording & playback
• Auto-play classical pieces
• 88 keys · adjustable key width
• Responsive touch
• Lightweight app size

GridBeat

Drum pad · step sequencer

Tap the grid, hit play. The path from idea to beat should be that short.

A focused drum machine that turns your device into a classic step sequencer. Eight drum tracks down the side, sixteen steps across, every control one tap away — and edits land on the very next step while it plays.

Screens — scroll sideways

• 8 drum tracks · 16 steps
• GM percussion, low-latency audio
• Tempo, swing & time signature
• Auto fills every 2, 4 or 8 bars
• Per-track mixer — volume & pan
• 5 pattern slots with autosave

HandCompose

MIDI studio in your pocket

Ideas rarely arrive while you’re sitting at the desk.

Turns your phone or tablet into a portable music studio — a touch-first multitrack MIDI sequencer. Lay clips on the timeline, fine-tune notes in the piano roll, and export a standard .mid file. It opens on an empty project: no demo content to delete, no subscription.

Screens — scroll sideways

• Multitrack arrangement
• Piano roll editing
• General MIDI instruments & drum kit
• Live tempo, mute & solo
• Undo & redo
• Export to MIDI (.mid)

HandGuitar: Chord Catch

Your screen becomes a fretboard

Sometimes the guitar is in the other room and the idea will not wait.

Turns your screen into a playable fretboard. Press the fretboard on the left and the chord is detected instantly; swipe the stroke area on the right to play it with a real guitar sound. No account, no internet, no ads.

Screens — scroll sideways

• Real-time chord detection
• Strum & arpeggio
• Barre chord support
• Capo — frets 1 to 10
• 4 guitar tones
• Adjustable screen layout