Soundtract vs SoundScope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Soundtract
This app simplifies transcribing field recordings and aids musicians learning by ear. It offers real-time, sophisticated noise reduction using spectral subtraction, allowing users to clean audio from recordings and videos. Additional features include audio isolation, tempo reduction, and various export options.
- Real-time spectral subtraction noise reduction
- Import audio from videos
- Zoom and isolate audio portions
- Tempo reduction up to 70%
- Export to m4a and mov formats
- Video re-export with cleaned audio
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Soundtract is a little pocket audio app we put together initially to make transcribing field recordings easier. We then realised it's perfect for musicians learning to play by ear, etc... While it's a small app with a simple interface, Soundtract really packs a punch in the feature department. Perhaps the thing we're most proud of, and where the app gets it's name, is the ability to apply very sophisticated noise reduction in real time to existing audio. We use a technique known as spectral subtraction, where we literally remove the noisy bits from the audio. Not only will Soundtract clean up audio recordings, but you can import the your VIDEOS as well, clean up the audio, and re-export back into video. And unlike other apps, our noise reduction is done on-the-fly in real time. Other notables features include the ability to zoom and isolate portions of audio for replay, reduce tempo by up to 30%, and export m4a and mov formats. Features Include: - Import all non-DRM audio from iTunes. - Import the audio channel from videos. - Real-time noise reduction based on spectral subtraction. Noise can be chosen automatically or isolated specifically by selection within the waveform. - Fast OpenGL waveform rendering optimised for very long recordings. - Gesture-based panning/zooming. - Tempo reduction up to 70%. - Isolate portions of audio for looping playback. - Resume last song and play marker location on relaunch. - MP4A export with all effects (tempo change/noise reduction) for either whole audio or isolated portions. - Video export. Export “clean” audio back into the original video source and render the new video back into the Photo library.
SoundScope
This app provides real-time audio spectrum analysis with detailed visualizations. It offers advanced features for monitoring stereo width, phase correlation, and system audio, designed for professional audio work.
- Real-time FFT spectrum analysis
- Frequency bars and line graph visualizations
- Logarithmic and linear frequency scaling
- Stereo, Mid/Side, and Phase Correlation analysis
- System audio loopback
- Microphone and audio interface input
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See what you hear. SoundScope turns your iPhone and iPad into a professional audio analyzer: a real-time spectrum analyzer, a broadcast-standard loudness meter and a mix assistant that tells you what to fix. All in one app. LOUDNESS, MEASURED PROPERLY • Momentary, short-term and integrated LUFS to ITU-R BS.1770 • True peak, loudness range (LRA), DR and PLR • Start, stop and reset a measurement whenever you need MIX DIAGNOSTICS • Clear alerts for clipping, true peak, streaming loudness, crushed dynamics and mono bass cancellation • Tonal balance checked against genre profiles: General, EDM, Hip-Hop, Classical, Rock, Acoustic and Podcast/Voice • See how far Spotify and YouTube will turn your track down, before you upload SPECTRUM ANALYZER • Real-time FFT from 20 Hz to 20 kHz with peak hold • Bar or line view, 20 to 120 bands, logarithmic or linear scale • FFT modes for transients, balance and mastering, with adjustable FFT size and overlap • Hold the spectrum to study a single moment FIVE FULL-SCREEN VISUALIZERS Turn your phone sideways for Spectrum Bars, Spectrum Line, Radial Bloom, Spectrogram and Ribbon Tunnel. Double-tap to switch views. STUDIO METERING • Dual VU meters with peak hold • Stereo image, phase correlation and left/right/mid/side spectra • Band RMS and mono compatibility for every band MADE TO BE USED • Eight color themes, including the per-frequency Spectrum rainbow. Swipe to change. • Built-in microphone or a connected audio interface, with adjustable sensitivity • A brushed-metal interface built for one-handed use PRIVATE BY DESIGN Everything runs on your device. No subscription, no account, no tracking and no internet connection needed. One purchase covers iPhone and iPad. Made for producers, mixing and mastering engineers, live sound engineers, musicians, podcasters and anyone who wants to see their sound.
Screenshots
Verdict
The clearest difference is review sentiment: SoundScope at 100% against Soundtract's 50%. SoundScope also leads on update cadence (monthly vs every 3 months). Soundtract's advantage is in-app purchases (none vs 1) and iOS requirement (6.1 vs 26.1). On price, ads, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SoundScope sells 1 one-off in-app purchase. Soundtract asks for nothing beyond the download.
Soundtract ships an update every 3 months, SoundScope monthly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Soundtract | SoundScope |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 6.1 — better | 26.1 |
| Further details — not scored | ||
| Size | 8 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Alex Shaykevich | Waldemar Schneider |
Customer experience
Soundtract
SoundScope
In-app purchases
Soundtract
No in-app purchases
SoundScope
- SoundScope$3.99









