Sound-responsive balls
The balls move gently during quiet work and bounce higher as overall classroom sound rises.
FREE · NO SIGN-UP · AUDIO STAYS ON YOUR DEVICE
Free Bouncy Balls alternative for classrooms (2026)
PetSilence is a free classroom noise monitor with sound-responsive bouncing balls, an optional animated classroom pet, Silent and Whisper modes, focus goals, and shared rewards.
Open PetSilence to try the interactive monitor. PetSilence is independent and is not affiliated with, endorsed by, or sponsored by Bouncy Balls.
Switch to a virtual pet
Teachers can change visual styles without losing the current sound mode, timer, or rewards.
Private on-device processing
PetSilence calculates relative sound intensity locally and never records, transcribes, stores, or uploads classroom audio.
More than a visual meter
Silent and Whisper modes, calibration, a focus timer, pause controls, reset controls, and shared stars are built into the same classroom display.
An honest alternative
Both products turn classroom sound into a visual cue. PetSilence adds a choice between bouncing balls and a virtual pet plus a structured focus routine.