Stereo Phaser vs JAX SR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Stereo phaser effect
- Adjustable rate, depth, feedback
- Stereo spread control
- Audio Unit AUv3 plugin
- Standalone app mode
- Real-time audio processing
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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
JAX SR
This audio effect app allows selective frequency range processing for modulation effects. It offers a classic phaser with MIDI control and dynamic mix adjustment, preventing negative side effects from full-range processing. It requires a host application to function.
- Selective frequency range processing
- Classic phaser modulation
- Optional MIDI control
- Dynamic mix adjustment
- Universal app for Apple devices
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The manual is here : https://audio.digitster.com/wp-content/uploads/2024/05/JAX-SR-Phaser-Manual.pdf The JAX SR Series are AudioUnits (AUv3), which allow to select a frequency range for effect processing. This one provides a classic phaser modulation effect with optional direct MIDI control assignment to the parameters. If (especially) modulation effects are applied to the entire frequency range, this usually will introduce negative side effects. The JAX [SR] Series allow a selective frequency range and dynamic adjustment of the mix easily. More information can be found on the product website at: https://audio.digitster.com/ Please note, that AudioUnits (AUv3) require a supporting host application to perform. This build (like all our latest releases) is truly 'universal', meaning, the audio unit is available for: - MacOS (Apple Silicon) - iOS (all actual iPhones) - iPadOS (all actual iPads) - visionOS (Apple Vision Pro) Requirements: MacOS 10.15++ iOS 14.0++
Screenshots
Verdict
The clearest difference is rating: JAX SR at 5.0 against Stereo Phaser's 1.0. JAX SR also leads on update cadence (every 4 weeks vs every 38 months). Stereo Phaser's advantage is price ($1.99 vs $6.99) and iOS requirement (10.0 vs 14.0). On ratings volume, ads, in-app purchases and monetization model 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
Stereo Phaser costs $1.99 and JAX SR $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
JAX SR holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Stereo Phaser ships an update every 38 months, JAX SR every 4 weeks. The most recent releases landed on September 20, 2026 and June 25, 2026 respectively.
| Parameter | Stereo Phaser | JAX SR |
|---|---|---|
| Price | $1.99 — better | $6.99 |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 38 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | Jens Guell |
Customer experience
Stereo Phaser
JAX SR
In-app purchases
Stereo Phaser
No in-app purchases
JAX SR
No in-app purchases









