apps / 6802013758
Undersong
Plays along, always in key
ian johnston · Music · $9.99 · US storefront
- rating
- 5.0 ★
- ratings
- 11
- updated
- Oct 16, 2026
- released
- Oct 15, 2026
v1.0.2
visible word pool · 6 words
title 9/30 chars · subtitle 26/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of Undersong's pool that are public — the keyword field is not exposed by any API.
from the listing
Undersong is an AUv3 audio effect that plays along with whatever audio you send it. It's technically an audio effect, but it acts more like an instrument. It's based on an idea I had for a live performance that ended up taking on a life of its own. The short version is that everything Undersong plays comes from the audio coming in. It listens to your track for "action", like a pluck, a drum hit or a swell, and each of those can spawn a particle. A particle is one small…
latest US reviews
★★★★★
Brilliant! An Instant Classic!
It was a real joy to discover this new release today! It’s very deep but even just scratching the surface I’m hooked with its musical capabilities. Best iOS music production app I’ve bought in years!
— Khanrad3
★★★★★
Transform and Transfigure Any Audio Into a New World
This is app is phenomenal and can create entirely new worlds of sound from whatever material you feed it. Full mix is like stepping through the mirror. Price is excellent for what it does and I wouldn't hesitate to recommend a purchase if you are even slightly interested in this…
— Silly Name Goes Here
★★★★★
Extremely impressive app
A 5 star app easily, but why? Nothing else like it. It can transform whilst complimenting host audio. Lots of online demos it’s extremely deep app.
— egoki11a
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