Comparison

Stereo Phaser vs Boost Pedal

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

Boost Pedal

Features
Read full description

Boost Pedal is a professional clean boost effect designed for guitarists, bassists, and music producers. Add up to +20dB of transparent gain to push your amp into natural overdrive or cut through the mix. **Features:** - Up to +20dB clean boost - AUv3 plugin format — works in GarageBand, AUM, and any AUv3 host - Low noise, high headroom design - Simple, intuitive pedal-style interface - Zero-latency processing - MIDI control — map any external MIDI device or use the built-in MIDI pad to engage and disengage the boost hands-free **Perfect for:** - Pushing your amp into breakup - Solo boosts - Hands-free control on stage with MIDI Requires an AUv3-compatible host app.

Screenshots

Stereo Phaser2 screens
Boost Pedal4 screens

Verdict

The call

The clearest difference is update cadence: Boost Pedal at every 2 weeks against Stereo Phaser's every 38 months. Boost Pedal also leads on price ($0.99 vs $1.99). Stereo Phaser's advantage is iOS requirement (10.0 vs 17.4). On ads, in-app purchases 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 Boost Pedal $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Stereo Phaser ships an update every 38 months, Boost Pedal every 2 weeks. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Stereo Phaser versus Boost Pedal: the parameters behind the verdict, then further details
ParameterStereo PhaserBoost Pedal
Price$1.99$0.99 — better
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 38 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better17.4
Further details — not scored
Size10 MB42 MB
Age rating4+4+
DeveloperAleksandar MlazevRafael Guilherme Bertholdo

In-app purchases

None

Stereo Phaser

No in-app purchases

None

Boost Pedal

No in-app purchases

Questions

Is Stereo Phaser free?
Stereo Phaser costs $1.99, with no in-app purchases.
Is Boost Pedal free?
Boost Pedal costs $0.99, with no in-app purchases.
Do Stereo Phaser or Boost Pedal have ads?
Neither Stereo Phaser nor Boost Pedal shows ads.
Which is updated more often, Stereo Phaser or Boost Pedal?
Stereo Phaser ships an update every 38 months, and Boost Pedal every 2 weeks. Most recently, Stereo Phaser was updated on October 7, 2026 and Boost Pedal on October 8, 2026.

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