Get help with Stem Checker and find answers to common questions
Stem Checker is available for free on the Mac App Store. Visit our homepage and click 'Download' or search for 'Stem Checker' in the Mac App Store. You'll need macOS 14 or later.
Stem Checker supports all major audio formats including WAV, AIFF, MP3, FLAC, and AAC. We recommend using lossless formats (WAV/AIFF) for professional stem checking.
Our algorithm analyzes the audio data across channels to detect when left and right channels contain identical content. This helps identify mono files that were incorrectly exported as stereo, which wastes file space and can cause issues with panning and stereo processing.
Yes! We have native Dropbox integration, allowing you to import and export stems directly from your Dropbox folders. More cloud storage integrations are coming soon.
No! Our streaming architecture processes files of any size without loading them entirely into memory. You can check stems of any length or size.
Click 'Forgot Password' in the app login screen. You'll receive an email with a reset link that will open the app directly to the password reset screen.
Every download includes two free sessions with access to all features — no credit card required. After that, it's $3.99/month or $29.99 one-time for lifetime access, and the monthly plan starts with your first month free. Cancel the monthly subscription anytime.
Yes! All audio processing happens locally on your Mac. You only need an internet connection for initial authentication and cloud storage features.
Institutions can license Stem Checker per machine using a direct-download build and an activation code — no student sign-in required on lab Macs. IT administrators can follow our step-by-step guide at stemchecker.io/institution-licensing.
Email us at info@stemchecker.io with a description of the issue, steps to reproduce, and your macOS version. Screenshots or screen recordings are very helpful!
Absolutely. All audio processing happens locally on your device. We never upload your audio files to our servers. See our Privacy Policy for full details.
Can't find what you're looking for? Our support team is here to help. We typically respond within 24 hours.
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