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Web product

Added September 8, 2026

SoundTest

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About the product

SoundTest is a suite of free, in-browser audio tools. Test your left and right speakers and headphones, run a frequency sweep, generate any tone or DTMF dial tones, detect the musical note from your microphone, and measure ambient sound level in decibels. Everything runs client-side with the Web Audio API, nothing is uploaded, and there is no sign-up.
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For product owners

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Every listing gets one post to our X and Threads followers. It is seen once, then the traffic stops. Promotion keeps SoundTest in front of people instead.

  • Back in the X and Threads rotation. SoundTest gets posted again instead of once.
  • A promoted slot on the AppRater homepage, carrying a Promoted badge.
  • A labelled spot in the weekly email to AppRater subscribers, one promoted app per issue.
  • Stays on the first screen however old the listing is, while new submissions push everything else down.

Quarterly promotion

$35USD every 3 months

Card, Apple Pay and more, through Whop. Starts straight away.

  • Cancel any time from the Whop account you paid with, or email [email protected] and we will do it.
  • The promotion starts straight away, no waiting on us.
  • Whop handles the checkout. We never see your card.

Questions first? Email [email protected].

For ownersOwn SoundTest? Add a deal or post a role, and it shows up right here.

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