Comparison

Stereo Phaser vs Kompresor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Stereo Phaser

This audio effect app provides a stereo phaser with adjustable rate, depth, feedback, and stereo spread. It functions as an Audio Unit AUv3 plugin for hosts like GarageBand or as a standalone application for real-time audio processing.

Highlights
  • Stereo phaser effect
  • Adjustable rate, depth, feedback
  • Stereo spread control
  • Audio Unit AUv3 plugin
  • Standalone app mode
  • Real-time audio processing
Features
Read full description

That is nice phaser effect that can run in stereo mode. The app is Audio Unit AUv3. In stereo mode the signal is split and run through 2 phaser effects with different frequency settings but same rate, depth and feedback that are shifted in stereo space with the same rate(same as the phasers’) The app is an Audio Unit Effect AUV3 and can be used inside GarageBand or other AU host apps as an effect plug-in. Stereo Phaser can also run as a stand alone app adding effect to the audio input so you can play your guitar, bass or synth directly through the app if you have the connector to do so. Stereo Phaser controls: - Rate - that is the phaser speed - Depth - phaser depth - Feedback - effect feedback - Stereo - stereo spread

About

Kompresor

This audio tool offers versatile compression with multiple algorithms and processing modes for various signals, from mix bus to mastering. It provides fine-tuning options like DELTA monitoring and external sidechaining for precise audio manipulation.

Highlights
  • Multiple compression algorithms
  • Five processing modes (stereo, mid, side, left, right)
  • External sidechain input
  • DELTA monitoring
  • Fast attack time (0.01ms)
  • Peak and RMS detectors
  • AUv3 plugin compatibility
Read full description

Kompresor is a versatile and powerful, yet easy to use, compressor. With several compression algorithms and processing modes under the hood, Kompresor is suitable for use on a wide variety of signals, on the mix bus, or for mastering. For the most transparent compression, ideal for mastering, use AUTO or "AUTO A" envelopes. Use PROGRAM envelope for an easy mix bus gluing effect. If you are after the classic style compression switch to feedback configuration. Select RMS detector for a smoother compression suitable for vocals, guitars, etc. Five processing modes allow you to go from the standard stereo (L/R) compression mode to more surgical modes like compressing the mid (sum) or side (diff) signal only, or compressing exclusively the left or right channel. To help you fine tune compression parameters, enable DELTA feature to monitor only the difference between the uncompressed and compressed signal. Last but not least, Kompresor has an external side chain input for those times when you need to duck one signal based on another one. Features: – Four types of compression Attack/Release envelopes SIMPLE, AUTO, AUTO A, and PROGRAM. – Five processing modes LEFT, RIGHT, MID, SIDE, STEREO – External sidechaining (only in hosts that support external sidechaining) – Very fast attack time - 0.01ms – Ratio up to 30:1 – Soft knee up to 50dB width – Feedforward and feedback configuration – Peak and RMS detectors – Sidechain high pass filter – Parallel processing – Monitoring only the difference between the uncompressed and compressed signal – Intelligent auto makeup gain – 4x oversampling to avoid aliasing – Plenty of factory presets to provide a starting point Kompresor is primarily an AUv3 effect. To use Kompresor as a plug-in, you will need an AUv3 compatible host such as Garageband, AUM, etc. Kompresor application is there to provide a user manual and a chance to use Kompresor with the microphone input. You can try Kompresor on a macOS or a Windows based machine by downloading the demo version of the plug-in (VST3, AUv2, AAX) from our website (https://www.shatteredglassaudio.com) and running it in a DAW of your choice. Sonically speaking there are no differences between the iOS and macOS/Windows versions of Kompresor.

Screenshots

Stereo Phaser2 screens
Kompresor2 screens

Verdict

The call

The clearest difference is price: Stereo Phaser at $1.99 against Kompresor's $24.99. Stereo Phaser also leads on iOS requirement (10.0 vs 15.8). Kompresor's advantage is rating (5.0 vs 1.0) and update cadence (every 8 months vs every 38 months). On ads, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Stereo Phaser costs $1.99 and Kompresor $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Kompresor holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Stereo Phaser ships an update every 38 months, Kompresor every 8 months. The most recent releases landed on September 20, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
Stereo Phaser versus Kompresor: the parameters behind the verdict, then further details
ParameterStereo PhaserKompresor
Price$1.99 — better$24.99
Rating1.0 (1 ratings)5.0 (3 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings13 — better
Update frequencyEvery 38 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.8
Further details — not scored
Size10 MB4 MB
Age rating4+4+
DeveloperAleksandar MlazevShattered Glass Audio

Customer experience

Stereo Phaser

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Kompresor

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stereo Phaser

No in-app purchases

None

Kompresor

No in-app purchases

Questions

Is Stereo Phaser free?
Stereo Phaser costs $1.99, with no in-app purchases.
Is Kompresor free?
Kompresor costs $24.99, with no in-app purchases.
Which has better reviews, Stereo Phaser or Kompresor?
Kompresor is rated higher. Stereo Phaser averages 1.0 out of 5 from 1 ratings, while Kompresor averages 5.0 from 3 ratings.
Do Stereo Phaser or Kompresor have ads?
Neither Stereo Phaser nor Kompresor shows ads.
Which is updated more often, Stereo Phaser or Kompresor?
Stereo Phaser ships an update every 38 months, and Kompresor every 8 months. Most recently, Stereo Phaser was updated on September 20, 2026 and Kompresor on October 3, 2026.

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