SUS4 Apps
25 focused music tools for every session, from the first idea to the final mix.
★ The flagships
The 3 apps that anchor the suite.
These are the deep ones. The apps you reach for in a session. Score for publishing-grade notation. Transcribe for slowing audio to the single hit. Ear Pro for the full ear-training curriculum. Practice for the 250-level skill ladder. Sketchpad for capturing a song before it disappears.
All 25 apps
- SUS4 Tuner
Chromatic tuner with strobe display. Gets you in tune fast.
- SUS4 Metronome
Subdivision-aware metronome that keeps you honest.
- SUS4 BPM Tap
Tap the screen and read the tempo. No messing around.
- SUS4 Pitch Pipe
Twelve clean reference tones, one tap each.
- SUS4 Chord ID
Name any chord you play into the mic.
- SUS4 Recorder
Capture the idea before it disappears.
- SUS4 Ear Daily
A five-minute ear training session every day adds up fast.
- SUS4 Scale Lab
Every mode and scale, visualised on your instrument.
- SUS4 Time Trainer
Builds your internal clock so you stop relying on the click.
- SUS4 Capo Calc
Pick a key, get the capo position and shape. Done.
- SUS4 Sketchpad
Rough-out a song idea with loops, chords and notes in one place.
- SUS4 Practice
Log sessions, track goals and see whether the work is actually happening.
- SUS4 Ear Pro★ Flagship
Full relative-pitch curriculum from intervals to chord progressions.
- SUS4 Score★ Flagship
Write lead sheets and scores that look like they came from a publisher.
- SUS4 Transcribe★ Flagship
Slow any audio, loop it, and work out exactly what is being played.
- SUS4 DAW Help
Quick reference for the shortcuts and settings you always forget.
- SUS4 Pedal Tuner
Floor-mode tuner: big display, mute control, stomp-box feel.
- SUS4 Setlist
Build, order and call up setlists without fumbling on stage.
- SUS4 Drum Pad
Sixteen velocity-sensitive pads for beats on any surface.
- SUS4 Loop Builder
Layer and arrange loops until the groove locks in.
- SUS4 Mix Check
Compare your mix against references and catch level mistakes early.
- SUS4 Vocal Warmup
Guided warmup routines so your voice is ready before you perform.
- SUS4 Backing Tracks
Practice and perform with real-band backing in any key and tempo.
- SUS4 Sight Reader
Progressive sight-reading exercises that adapt to your speed.
- SUS4 Chord Detector
Hear a chord, hold up the phone, and know what it is.
Built for every device
Every SUS4 app is a universal binary. One subscription runs natively on iPhone, iPad and Mac. Twelve of them extend to Apple Watch so you can tune, tap and track without reaching for your phone.