Hardware step sequencers are absurdly expensive. Most of them cost as much as a full synthesizer! No shit. If you buy a desktop (keyboardless) synth like the Minitaur for around $600, then expect to pay another $600+ if you want a hardware sequencer with it. The fancy rack mount ones are easily more than a $1,000! There is no preset saving either, so you have to input notes every time.
As with all things iOS, developers are bringing us better solutions at 0.5% of the cost of the hardware they emulate!
Step Sequencer ST-S01 brings a classical Step Sequencer to the iPad.
Do you remember the times of huge, old modular Synthesizers. They were not complete without a Step Sequencer and this is exactly what ST-S01 is. It features two modes with either 16 steps or two times 8 steps which are executed in parallel on two MIDI channels. ST-S01 supports MIDI Clock, Start, Continue and Stop. Each step has an octave and note selector as well as a switch which permits skipping a step.
In MIDI clock receive mode it is possible to slow down or speed up the sequence. MIDI can be received and sent by WIFI and through interfaces like the Line6 Midi Mobilizer.
ST-S01 can control any background MIDI enabled App on the iPad, as well as external MIDI keyboards.