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AppVol vs CrystalSound

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

AppVol compared with CrystalSound
DetailAppVol logo AppVol CrystalSound
What it doesFree per-app volume control for macOS with real VU meters, no audio driver required AI-powered noise cancellation and screen recording for virtual meetings
StageNot given Not given
FoundedNot given Not given
Based inDE VN
Pricing modelFree Freemium
PricingFree Premium: USD/User/Year (price not displayed on page), includes unlimited noise cancellation and cloud call recording. Elite (coming soon): $228 USD/User/Year, includes all Premium features plus meeting transcription, performance analysis, and risk analysis. Enterprise: contact for pricing. A 7-day f
Key features
  • Per-app volume sliders and mute controls
  • Real VU meters per app and master
  • No audio driver installation required
  • Output device switcher for speakers, AirPods, and audio interfaces
  • Hide specific apps from the volume control list
  • Drag-to-reorder app arrangement with persistent settings
  • Automatic per-app level memory across sessions
  • In-app self-updating mechanism
  • Bi-directional noise cancellation eliminates background noise from both user and other party
  • My Voice Only feature isolates and enhances user voice while suppressing other speakers
  • Secure offline screen recording with bidirectional audio capture
  • Acoustic echo suppression prevents annoying echoes in meetings
  • Automatic meeting minutes generation with keywords and sentiment analysis
  • Room echo removal improves voice clarity by minimizing room echo effects
  • Audio file enhancement for mp3, wav, and flac recordings
  • Voice changer effects including pitch shift and reverb
  • Team license management with flexible seat adjustment
  • On-device AI processing ensures privacy without cloud data transmission
What makes it different
  • Free solution to a macOS gap that Windows provides natively
  • No system audio driver installation required
  • Real analog-style VU meters rather than decorative animations
  • Part of a complete free Adelvo audio toolkit
  • Fully signed and notarized for security
  • Works as a virtual microphone in any application including Google Meet and Zoom with one-click installation
  • On-device processing protects user privacy by keeping all audio local without cloud uploads
  • Eliminates background noise while preserving natural voice quality with minimal distortion
  • Integrates seamlessly with any video conferencing or communication tool without switching apps
  • 30-day money-back guarantee provides risk-free trial of paid subscription
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check44 no change since last check
Trust Flow (Majestic)78
Citation Flow (Majestic)2435
Referring domains (Majestic)11474

6 details filled in for both companies.

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