SUS4 Apps
22 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. Practice for the 250-level skill ladder.
All 22 apps
- SUS4 Tuner
Chromatic tuner with needle and strobe views. Gets you in tune fast.
- SUS4 Metronome
Subdivision-aware metronome that keeps you honest.
- SUS4 BPM Tap
Tap the tempo, or let the mic find it. No messing around.
- SUS4 Pitch Pipe
Twelve clean reference tones, one tap each.
- SUS4 Chord ID
Play a chord into the mic and see its name.
- SUS4 Recorder
Capture the idea before it disappears.
- SUS4 Ear Daily
Short daily ear-training drills that build a streak and a sharper ear.
- SUS4 Scale Lab
104 scales and modes, lit up on a guitar fretboard and piano keys.
- SUS4 Time Trainer
Tap to the click, then keep time when it drops out.
- SUS4 Capo Calc
Pick a key, get the capo position and shape. Done.
- SUS4 Sketchpad
Catch a song idea: lyrics, chords, a hummed melody and voice notes.
- SUS4 Practice★ Flagship
250 levels across 25 worlds — a music-practice game suite.
- SUS4 Score★ Flagship
Scan or import sheet music, check the notes, and play it back at your tempo.
- SUS4 Transcribe★ Flagship
Import a recording and see its key, tempo, notes and chords as tab.
- SUS4 DAW Help
Step-by-step answers for Logic, Pro Tools, Ableton and more, mid-session.
- SUS4 Setlist
Build, order and call up setlists without fumbling on stage.
- SUS4 Drum Pad
Sixteen pads, 25 kits, a step sequencer and a looper for sketching beats.
- SUS4 Loop Builder
Record and stack loops on up to eight tracks 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
Jam over drums, bass and chords in any key and tempo, or build your own.
- SUS4 Sight Reader
150 progressive sight-reading levels. Play along and the mic scores every note.
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.