STEPS by Reactable is a robust MIDI sequencer designed for iPhone users, offering a unique approach to creating intricate rhythmic patterns. Departing from traditional piano rolls, Steps features intuitive dials for experimentation. This MIDI sequencer empowers users to control any MIDI-compatible app, transmit MIDI over networks, and sync with external hardware synths like Korg Volcas or Pocket Operators using an audio cable.

The program boasts an array of features including automatic MIDI-out system, Bluetooth LE MIDI support, Audiobus 3 compatibility, and the ability to connect with external MIDI interfaces for hardware control. Additionally, Steps facilitates synchronization with hardware synths, offers a user-friendly interface for seamless performance and editing mode transitions, and supports Ableton Link for WiFi syncing across multiple devices.