No stacking parts one by one: sing once and the harmonies are made from your own voice.
2, 3 or 4 tiles free; 6 and 9 with PRO. Every tile lights up when its voice sings.
Choir, Minor and Cascade, plus Echo, Canon, Power and Deep with PRO.
Voices come in one after another, like a round.
Pitch from -12 to +12 semitones, delay and volume, with hall reverb and doubling.
Try new settings on your last take.
The finished acapella video, with stereo sound.
Screens from the app on Google Play.






No. The harmonies are fixed intervals made from your own voice after you stop recording, and the app doesn't detect the key, so simple melodies sound best.
Yes: takes up to 15 seconds with 2, 3 or 4 tiles and a small watermark. PRO is a one-time purchase, not a subscription: no watermark, every arrangement and tile count, and takes up to 60 seconds.
Not yet: the choir is made after you stop, so you won't hear it in your headphones while recording.
Any Android phone running Android 7.0 or newer. The app needs the microphone to hear you sing.