Comparison

Stereo Modulator vs SWAM Piccolo

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

SWAM Piccolo

This app offers a highly realistic and expressive virtual piccolo instrument for musicians. It utilizes physical modeling technology to dynamically generate sound, responding to subtle playing nuances. Features include a room simulator, EQ, compressor, and extensive MIDI control options for mobile music production and live performance.

Highlights
  • Physical modeling sound generation
  • Room simulator 'Ambiente'
  • Standalone and AUv3 plugin
  • Expressive MIDI control
  • Built-in EQ and Compressor
  • Intuitive interface for all users
Read full description

SWAM Piccolo for iOS: Unmatched Realism and Expressive Power in Your Hands! Whether you play with a wind controller like the EWI, a keyboard, or any other MIDI device, SWAM Piccolo for iOS gives you unparalleled expressivity. Part of the acclaimed SWAM Solo Woodwinds, SWAM Solo Brass, SWAM Solo Strings, and SWAM String Sections suite, it is a must-have for musicians seeking the most realistic and responsive virtual instruments available. Now featuring the revolutionary Room Simulator "Ambiente", this cutting-edge Physical Modeling technology delivers the depth and nuance of a real woodwind performance—in real time. Unlike sampled libraries, SWAM Piccolo doesn’t rely on pre-recorded sounds but generates authentic performances dynamically, responding to every subtlety of your playing, just like a real piccolo player. New Features and Key Benefits Room Simulator "Ambiente": Take advantage of advanced spatial control with the built-in Room Simulator "Ambiente", allowing you to position the instrument in a realistic acoustic space, interact dynamically with other SWAM instruments in the same virtual room, and create truly immersive performances. Additionally, the EQ and Compressor effects are available for fine-tuning your sound. Standalone and AUv3 Plugin: Perform in real time or integrate SWAM Piccolo seamlessly into your mobile production workflow. Intuitive, Inclusive Interface: Designed for everyone, including blind and visually impaired users. Expressive Control: Play with unmatched expressivity using MPE controllers, keyboards, breath controllers, or other MIDI devices. Top Features at a Glance Access a library of presets, create your own, or import presets from the desktop version. Customize every detail of your sound, including timbre, vibrato, and dynamics. Micro-tune the instrument with the Pitch Manager, supporting devices like MAQAM for advanced tuning systems. Add built-in effects like EQ and Compressor. Play with different instrument models to explore a variety of tonal colors and expressive possibilities. Use AUv3 to integrate with your mobile DAW (Logic, Cubasis, AUM) or apps like Camelot PRO for live performances. Who is SWAM Piccolo for iOS Designed For? Wind Controller Players: Looking for a mobile setup to perform live without needing a computer while still achieving an incredible sound. Keyboard Players: Frustrated by the limited expressive capabilities of normal sample-based plugins? SWAM Piccolo unlocks the full range of expression. Music Producers: Need a mobile setup to produce music from anywhere without carrying around expensive gear? SWAM Piccolo is the solution. Musicians Seeking Expressivity: Looking for a virtual instrument that allows you to express the full range of your musicality easily on your iPhone or iPad. IMPORTANT To fully harness the expressive power of SWAM Piccolo, a controller capable of continuous expression (such as a breath controller, expression pedal, MPE device, or wind controller) is required. Just like a real piccolo player shapes their sound with breath and embouchure, SWAM Piccolo needs expressive input for maximum realism. With SWAM Piccolo for iOS, you have the freedom to create lifelike woodwind performances on your iPhone or iPad. Redefine your music with unparalleled realism and expressive depth—anytime, anywhere.

Screenshots

Stereo Modulator3 screens
SWAM Piccolo4 screens

Verdict

The call

The clearest difference is price: Stereo Modulator at $2.99 against SWAM Piccolo's $29.99. Stereo Modulator also leads on iOS requirement (10.0 vs 15.0). On rating, review sentiment, ratings volume and update cadence 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 SWAM Piccolo $29.99 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 SWAM Piccolo. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Stereo Modulator ships an update every 3 months, SWAM Piccolo every 2 months. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
Stereo Modulator versus SWAM Piccolo: the parameters behind the verdict, then further details
ParameterStereo ModulatorSWAM Piccolo
Price$2.99 — better$29.99
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3 — better2
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size2 MB105 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedAudio Modeling

Customer experience

Stereo Modulator

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

SWAM Piccolo

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stereo Modulator

No in-app purchases

None

SWAM Piccolo

No in-app purchases

Questions

Is Stereo Modulator free?
Stereo Modulator costs $2.99, with no in-app purchases.
Is SWAM Piccolo free?
SWAM Piccolo costs $29.99, with no in-app purchases.
Which has better reviews, Stereo Modulator or SWAM Piccolo?
Stereo Modulator and SWAM Piccolo are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do Stereo Modulator or SWAM Piccolo have ads?
Neither Stereo Modulator nor SWAM Piccolo shows ads.
Which is updated more often, Stereo Modulator or SWAM Piccolo?
Stereo Modulator ships an update every 3 months, and SWAM Piccolo every 2 months. Most recently, Stereo Modulator was updated on October 15, 2026 and SWAM Piccolo on October 6, 2026.

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