Make chiptune on your iPhone
C.H.I.P. is a Chiptune Handheld Instrument Player: sequence and build four channel chiptune, the sound of a 1989 handheld console.
Whether you want a quick lofi beat or a finished song, it is a music maker for sitting down and actually writing. It is made for people who like retro sound and do not want a manual to get going.

Four tabs, one song
- Arrange is your song: sections stack top to bottom and play in order.
- Pattern is where notes go: four lanes down, time across.
- Sound is the synth: every control has a plain name and a sentence saying what it does.
- Song is everything else: tempo, tuning, the mixer, saving and export.

Real chip sound, made as you play
Every sound is made as you play. Nothing streams, and there is no sample pack hiding in the background. The channels are emulated at the register level, so the controls mean what they meant on the original chip.
On iPhone and iPad
The whole interface is drawn a pixel at a time, in the style of an early nineties desktop, and scales in whole pixels on every screen.

Questions
Is C.H.I.P. free?
Yes. Chiptune Sequencer: C.H.I.P. is free on the App Store for iPhone and iPad.
Do I need to know trackers?
No. Effects come from a menu you can read and every control explains itself. If you have used a tracker before, the song and save formats will feel familiar.
Try it in Chiptune Sequencer: C.H.I.P.
Free on the App Store for iPhone and iPad. Requires iOS 17 or later.