SoundLab vs Stemzel

SoundLab is a native iOS audio workspace for musicians, producers, creators, and anyone who wants a fast way to inspect, edit, split, and export audio on iPhone or iPad. Import one or more audio files and build a lightweight multitrack session. Each track includes waveform display, volume, pan, mute, solo, and a three-band EQ, so you can quickly shape a mix without leaving the app. Need to understand what is happening inside a track? SoundLab includes real-time spectrum and spectrogram views, plus per-track analysis for duration, channels, sample rate, peak level, RMS, and average spectrum. For editing, SoundLab gives you practical tools that are easy to reach from each track: normalize, fade in and out, reverse, duplicate, and crop to a selected region directly from the waveform. SoundLab also includes multiple ways to split audio: - AI stem separation for vocals, drums, bass, and other instruments - Vocal center extraction from stereo material - Vocal removal / karaoke-style side extraction - Low, mid, and high frequency band splitting AI separation runs locally with Core ML. Your audio stays on device during editing, analysis, mixing, and export. When your session is ready, export the current mix as an AAC .m4a file and share it through the standard iOS share sheet. Key features: - Multitrack audio import and playback - Waveform-based track editing - Real-time mix controls: volume, pan, mute, and solo - Three-band EQ on every track - AI stem separation: vocals, drums, bass, and other - Stereo center / side extraction tools - Low, mid, and high frequency splitting - Real-time spectrum and spectrogram analysis - Per-track audio stats and average spectrum - Offline mix export to AAC - Localized interface with support for multiple languages - Native SwiftUI experience built for iOS Whether you are sketching ideas, preparing practice tracks, analyzing recordings, or creating quick stems, SoundLab keeps the workflow direct and focused.

Stemzel splits any song into four stems — vocals, drums, bass, and other instruments — entirely on your iPhone. No cloud uploads. No subscription. No account required. IMPORT YOUR AUDIO • File — pick from Files, iCloud Drive, or anywhere on your device • URL — paste a direct link to an MP3, M4A, or WAV file • Record — capture audio with your microphone and split it instantly MIX AND EXPORT • Mute or solo any stem to hear exactly what you want • Play back your mix with a built-in waveform scrubber • Export individual stems or your full mix to the Files app PRIVATE BY DESIGN Every split runs on your device using on-device AI. Your music never leaves your iPhone. No servers, no tracking, no ads. ONE-TIME UNLOCK Pay once, use Stemzel forever. Unlimited splits and downloads — no monthly fees, ever. PERFECT FOR • Musicians learning parts by ear • DJs and producers isolating elements • Karaoke and acapella practice • Remixing and sampling workflows • Anyone who wants stems without uploading to the cloud Stemzel is built for speed and privacy. Import a track, wait a moment while it separates, then mute the vocals, solo the drums, or export everything — all from your pocket. Questions or feedback? Visit stemzel.com/support