AudioTweak vs Varispeed Simulator

AudioTweak is an advanced audio player that helps musicians learn, transcribe, and practice songs. With AudioTweak, you can slow down fast passages, loop and save tricky sections, or shift the pitch into a key that fits your voice or instrument. Whether you're learning a solo, arranging a new part, or trying to hear a hidden bassline, AudioTweak gives you the tools to uncover every detail. You can isolate instruments with EQ, adjust tempo without losing sound quality, and even export your loops to keep practicing anywhere. AudioTweak makes practicing music smarter, clearer, and more enjoyable. AUDIO SPEED CHANGER Slow down tricky parts to practice at your own pace, or speed up exercises to build skill—all without affecting sound quality. PITCH CHANGER Adjust pitch to play your music in any key, match your instrument, or fit your voice. Explore alternate keys while transcribing or arranging. AUDIO LOOPER Repeat and focus on specific sections until you master them. Whether it's a tricky solo or a chord change, looping makes it easy to practice the hard parts as many times as you need. Save a loop with a name and jump straight back to it next time you open the song — the verse, the chorus, and that one awkward bar, always a tap away. COUNT-IN METRONOME Start every practice session in the pocket. The built-in count-in metronome gives you a rhythmic lead-in before playback begins, so you're always ready to play along from the first beat. AUDIO ISOLATION Use the 10-band EQ to cut out what's not important, and the stereo pan to shift focus between left and right channels. Perfect for isolating guitars, vocals, or other parts that sit to one side of the mix. DETAILED FEATURES - Slow down or speed up music from 25% to 200% without affecting pitch - Transpose music up or down by up to 24 semitones - Loop sections to practice specific parts of a track - Save your loops with names and return to them any time (one free, unlimited with Pro) - Count-in metronome to lead you into playback right on the beat (Pro) - Control stereo pan - Equalize your tracks with a 10-band graphic equalizer (Pro) - Export your looped regions or full tracks to an audio file (MP4, CAF, WAV) - Import songs from your music library, iCloud, other apps, or even extract audio from videos in your Photos app - Organize projects with custom groups (Pro) Some features are part of AudioTweak Pro, available via subscription or one-time purchase. The free version lets you create up to 3 projects and save one loop per project. Upgrade to Pro to unlock unlimited projects and loops, more exporting formats (WAV), and other advanced features. Note: DRM-protected audio files (like Apple Music tracks) are not supported. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Varispeed—or variable speed oscillation—is a feature on many old tape machines which allows users to manually adjust the speed and pitch of a recording, often with a dial. The slower the tape runs, the slower the recording is, and the lower it is in pitch. The faster the tape runs, the faster the recording is, and the higher it is in pitch. Other popular digital Varispeeds exist as external plugins or gated off, subscriber-only features of apps; this standalone Varispeed Simulator is the first of its kind for iOS, and it’s free! This first build features: -An intuitive user interface and hand-drawn design. -The ability to upload and manipulate the speed and pitch of any audio. -A pitch detector which displays major and minor keys. -A real-time audio scrubber. -An audio reversal tool. -The ability to export Varisped audio!