Comparison

Stereo Modulator vs RedNova

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

Head to head
About

Stereo Modulator

This audio effect plugin transforms mono sound into stereo, adding width and depth. It uses micro-delays to create a natural sense of space, with optional LFO modulation for a Leslie speaker-like effect without pitch shifting. Ideal for creating separation in mixes, especially for guitars and vocals.

Highlights
  • Mono to stereo conversion
  • Adjustable stereo width
  • Optional LFO modulation
  • Micro-delay de-correlators
  • Creates natural spatial depth
  • No pitch shifting or echo
Features
Read full description

Stereo Modulator is an AU3 effect that converts mono sound into stereo, with an adjustable width and optional LFO modulation. It works by using a bank of randomized stereo de-correlators that apply micro-delays to introduce random differences between the spectrums of the left and right audio channels. In its output we hear a natural sense of space that is not present in mono recordings. It's similar to the sound space one gets from using a stereo reverb plugin except that it is tight and clear, without echo. It can operate either as a static effect or it can be gently modulated by a low-frequency oscillator. The modulation is akin to the sound of a Leslie speaker, except that it doesn't do any pitch shifting, so the output remains focused and tuning is not compromised. This effect is especially useful for mixing overdriven electric guitar sounds together with vocals. Using Stereo Modulator on the guitars, we can push them out to the sides, creating a space in the centre for the vocal to cut through, without needing to reduce the volume of the guitars. NOTE: Stereo Modulator is an AU3 plugin only, not a standalone app. To use it, you will need an audio unit host app such as Garageband or Audiobus.

About

RedNova

This audio plugin offers intelligent compression and spatial positioning for professional sound design. It adapts to your audio, allowing you to control dynamics and place sounds forward for presence or back for warmth. Transform recordings into spatially positioned compositions with intuitive controls.

Highlights
  • Intelligent adaptive compression
  • VCA compressor with analog saturation
  • Forward/back spatial positioning
  • Visual position orb feedback
  • Advanced sidechain control
  • AUv3 plugin format
Features
Read full description

RedNova: Intelligent Compressor + Spatial Positioning Welcome to a new genre of professional audio plugins. RedNova is the first of the Nova series of plugins by Simon Alexander that combines unique and musical audio effects with intuitive forward/back spatial positioning. Intelligent processing adapts to your audio while giving you complete control over effect dynamics and mix placement. From punchy upfront compression to warm distant textures, discover how one brilliantly designed plugin transforms flat or unruly recordings into professionally processed, spatially positioned compositions! Instantly Transform Your Dynamics & Depth: * Intelligent compression that adapts to your source material automatically * Professional VCA compressor with musical saturation and life-like analog circuitry dynamics * Move sounds forward for clarity and presence or back for warmth and space * Watch the position orb grow larger as sounds move forward, smaller as they recede * Advanced sidechain control over compression AND spatial positioning Made for Everyone: * Producers: Get broadcast and album-quality compression with professional spatial control * Beatmakers: Compress drums while positioning elements in mix depth * Singer-Songwriters: Gentle vocal compression to driving saturation with forward positioning for presence * Podcasters: Broadcast-safe compression with spatial separation for voice and music * Beginners: Set-and-forget intelligent processing with simple visual controls * Experts: Advanced sidechain routing with multi-parameter control Professional Features, Intelligently Simple: Intelligent Compressor: 1. Adaptive Processing - Content-aware compression that automatically adjusts to your source material 2. Safety-First Design - Multi-stage limiting ensures broadcast-safe output 3. Musical Response - Professional VCA style compressor with enhanced musical saturation 4. Thread-Safe Architecture - Lock-free processing prevents audio dropouts in demanding sessions SuperSitter Positioning: 1. Forward - Brings sounds closer with intelligent EQ and transient enhancement 2. Back - Creates warm distance with spatial processing and controlled filtering 3. Center - Complete transparency when positioning isn't needed 4. Visual Feedback - Dynamic orb scaling shows exact spatial position Advanced Sidechain Control: 1. Multi-Target Control - Route sidechain to compression threshold, ratio, AND forward/back position 2. Global or Individual - Control all parameters together or individually 3. Self-Signal Mode - Use the track's own signal for dynamic control (DAW dependent) 4. LED Indicators - Color-coded feedback shows which parameters are under sidechain control Technical Excellence: * AUv3 Plugin Format for all iOS/iPadOS DAWs that utilize them * Real-time intelligent content analysis with adaptive processing * CPU-efficient design allows multiple instances without performance issues * Zero-latency processing with automatic phase alignment * Broadcast-safe output limiting with extended dynamic range * Full parameter automation support with smooth transitions * Touch-optimized interface with floating value displays * 20 professionally crafted presets to get you started on any kind of track RedNova represents a new genre of audio plugins combining unique and intelligent audio effects with easy and intuitive spatial positioning. Download RedNova now and hear professional results in seconds! RedNova's intelligent design makes studio and broadcast-quality compression and spatial positioning accessible to everyone.

Screenshots

Stereo Modulator3 screens
RedNova3 screens

Verdict

The call

The clearest difference is price: Stereo Modulator at $2.99 against RedNova's $9.99. Stereo Modulator also leads on ratings volume (3 vs 1) and iOS requirement (10.0 vs 12.0). RedNova's advantage is update cadence (every 4 weeks vs every 3 months). On rating, 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

CostPrice · In-app purchases · Ads · Monetization

Stereo Modulator costs $2.99 and RedNova $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Stereo Modulator against 5.0 for RedNova. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Stereo Modulator ships an update every 3 months, RedNova every 4 weeks. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Stereo Modulator versus RedNova: the parameters behind the verdict, then further details
ParameterStereo ModulatorRedNova
Price$2.99 — better$9.99
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 3 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better12.0
Further details — not scored
Size2 MB17 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedSimon Alexander

Customer experience

Stereo Modulator

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

RedNova

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stereo Modulator

No in-app purchases

None

RedNova

No in-app purchases

Questions

Is Stereo Modulator free?
Stereo Modulator costs $2.99, with no in-app purchases.
Is RedNova free?
RedNova costs $9.99, with no in-app purchases.
Which has better reviews, Stereo Modulator or RedNova?
Stereo Modulator and RedNova are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do Stereo Modulator or RedNova have ads?
Neither Stereo Modulator nor RedNova shows ads.
Which is updated more often, Stereo Modulator or RedNova?
Stereo Modulator ships an update every 3 months, and RedNova every 4 weeks. Most recently, Stereo Modulator was updated on September 30, 2026 and RedNova on October 4, 2026.

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