MidiSequencer is a step sequencer designed for iOS devices, offering a unique way to create exotic sounds and rhythms with your favorite synths. It has been reworked as a Universal device, compatible with iPhone 4s, 5, 6, 6+, and all iPads. With up to 16 midi notes defined and played back interactively, you can experiment with various variations like pitch, velocity, length, and more. The program allows for creating chords, sending out up to 128 note chords, and applying Midi FX like echo, filters, and note rotation.

MidiSequencer supports extreme tempos ranging from 1 to 1020BPM and offers Master/Slave combinations using midi clocks. It requires iOS 8 or higher, excluding iPad 1, and is 64-bit compliant. Note that this app does not produce sound but can send/receive midi to coreMidi apps or external midi equipment with the necessary interface.