Chase the sound in your head.
A chord-progression studio that turns a hum into a hook. Pick a key, tap to hear it, loop it — and catch the idea before it slips away.
What it does
Find your next progression in seconds.
ChordLoop is the fastest way to catch a musical idea before it slips away. Pick a key, tap chords to hear them instantly, then stack them into a progression and loop it at any tempo — no theory degree required. It’s a playground for making music by ear.
Key features
Everything you need to hear an idea.
Every chord, any key
Major and minor keys with the music theory built in and correct — tap to hear it instantly on your device.
Loop the groove
Stack chords into a progression and loop it at any tempo, with an arp/strum feel and a bass line under it.
7ths & starters
Flip on 7th chords for a jazzier feel, or start from classic pop, 50s, and ballad progressions.
Yours, offline
Works fully offline with no account, no ads, and no subscription. Saved progressions stay on your device.
ChordLoop Pro
Adds MIDI export, drum grooves, and six more instruments — Organ, Nylon Guitar, Synth, Strings, Music Box, and Marimba. The songwriting core stays free, forever.
Look inside
Made to keep you in the flow.
Representative in-app UI. See the real screenshots on the App Store.
Support
Happy to help.
Email jonathanbbiles@gmail.com — we usually reply within a couple of days.
I don’t hear any sound.
Make sure your iPhone’s volume is up and the ring/silent switch on the left edge is set to ring (no orange showing). Tap any chord to start the audio.
What does ChordLoop Pro include?
A one-time $3.99 purchase unlocks MIDI export, drum grooves, and six additional instruments (Organ, Nylon Guitar, Synth, Strings, Music Box, and Marimba). The full songwriting core is free.
I bought Pro on another device / reinstalled the app.
Open the Pro screen and tap “Restore Purchases.” Your unlock is tied to your Apple ID and restores for free.
Does it work offline?
Yes. ChordLoop works fully offline and never sends any data over the internet.
Privacy
Designed to respect your privacy completely.
ChordLoop does not require an account, does not ask you to sign in, and does not collect or sell personal information. Everything you create in the app is stored on your device.
The app makes no network connections at all. The only files it loads are the ones shipped inside it.
There is no advertising, no tracking, and no third-party analytics in the app. Nothing you do in it is profiled or sold.
Deleting the app removes everything it kept on your device. Questions about privacy? Email jonathanbbiles@gmail.com.