Measure stable sustained-tone duration.
SingLift Sustain measures how long a sustained tone remains stable during use. It is built for a focused long-tone moment, where vocal stability and pitch stability matter more than a score.
The result is a duration measurement, not an evaluation of your voice.
A clear view while you measure.
The Measure experience is quiet and direct: start a measurement, sustain a tone, and read the stable duration without unnecessary distraction.
Its priority is the live measurement itself, with restrained visual feedback and legible numerical emphasis.
Audio is not recorded or uploaded.
Audio files are not stored. Raw microphone input and singing content are not saved. Measurement results are saved on your device.
Review measurement history and personal best.
Completed measurements can be reviewed in measurement history. Personal Best gives a simple reference point for the longest stable duration saved on your device.
5 measurement days included.
Continued measurement after the included days requires a one-time purchase.
No subscription. No automatic renewal. No ads.
A measurement day is defined in the FAQ.
A measurement tool, not instruction or diagnosis.
SingLift Sustain does not provide medical advice, diagnosis, singing instruction, scores, rankings, or a guarantee of improvement.