Stereo Modulator vs plateVerb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Mono to stereo conversion
- Adjustable stereo width
- Optional LFO modulation
- Micro-delay de-correlators
- Creates natural spatial depth
- No pitch shifting or echo
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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.
plateVerb
This audio effect app offers 14 distinct plate reverb modes to add rich, seamless ambience to any sound. It provides in-depth controls for sculpting reverb, a 3-band EQ, and cross-platform preset sharing. Ideal for musicians and audio engineers seeking to enhance their mixes with lush, dynamic spatial effects.
- 14 distinct plate reverb models
- Extensive sound sculpting controls
- Built-in 3-band EQ
- Preset manager with save/load
- Cross-platform preset sharing
- AUv3 compatible
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Experience unparalleled versatility and depth with our cutting-edge Plate Reverb. Featuring 14 distinct plate modes, each meticulously crafted to deliver a spectrum of mesmerizing plate sounds, plateVerb infuses your audio with a luscious, seamless ambience that enhances any source it touches. Perfect for achieving shimmering, smooth, and beautiful ambience to ANY of your sounds. Unlock the full sonic potential of each mode with in-depth controls; Mix, Dampening, Ducking, Left/Right Repeats and Decay. Their three band EQ Section (Low, Mid, and High), and master controls (Master Volume & Pan). All settings can be saved and loaded in your sessions as well as crossplatform presets. All parameters offer automation control to get the most expressive sound. With 20 included presets and a revamped preset section, you'll be able to dial in any space with ease. Features - 14 Plate Reverb Models; ranging from early/vintage styles to creatively inspiring and modern/futuristic - Over 16 In-depth controls to sculpt your reverbs, including: Pre Delay, Decay, Damping, Repeat Speed, Ducking, and more! - Built-in 3-band EQ section for additional sonic character control - Preset Manager with Save, Save As, Rename, and Delete functionality - Over 20 Factory presets, including both Send and Insert styles - Cross-platform support: presets can be shared between iOS and macOS & Windows - AUv3 compatible with your favorite AU Host apps such as Garageband, AUM, Cubasis, and more! Plate Modes: redPlate - Immerse your audio in the rich, original plateVerb full-bodied resonance of a big plate sound. digiPlate - Experience the full-bodied depth of a big plate sound in a digital realm. shortPlate - Engage with a full-bodied, short plate sound that offers a classic touch of ambience. voxPlate - Explore the fullness of a big plate sound, designed to enhance vocal clarity. algoPlate - Dive into a world of algorithmically crafted big plate sound. vintagePlate - Step into the nostalgia of a vintage big plate sound. goldPlate - Experience the opulence of a full-bodied, gold-plated sound. Fifties Plate - Natural old school German made that made itself a staple in studios around the world. Early 80s Plate - Famously warm sound, one of the earlier creations from one of the American digital reverb creators of all time. Mid 80s Plate - The studio standard digital plate reverb found in studios across the world. Late 80s Plate - Natural digital style plate reverb, found on pretty much any source recorded in the 90s… and on! 90s Plate - A full bodied digital plate recreation from a less known, beast of a reverb processor. FX Plates - Effects based analog plate with a touch of weirdness for those situations that get weird. Swell Plates - A massive plate with a build up to perfection, great for pads, and ambient sound design.
Screenshots
Verdict
The clearest difference is rating: Stereo Modulator at 5.0 against plateVerb's 4.5. Stereo Modulator also leads on review sentiment (100% vs 71%) and price ($2.99 vs $4.99). On ratings volume, update cadence, ads and in-app purchases 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 Modulator costs $2.99 and plateVerb $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stereo Modulator holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews point the same way: 100% of Stereo Modulator's written reviews are positive against 71% of plateVerb's.
Stereo Modulator ships an update every 3 months, plateVerb every 5 months. The most recent releases landed on September 30, 2026 and September 25, 2026 respectively.
| Parameter | Stereo Modulator | plateVerb |
|---|---|---|
| Price | $2.99 — better | $4.99 |
| Rating | 5.0 (3 ratings) — better | 4.5 (6 ratings) |
| Positive reviews | 100.0% of reviews — better | 71.4% of reviews |
| Number of ratings | 3 | 6 — better |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 2 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Mangoo Consulting Company Limited | OSC Audio |
Customer experience
Stereo Modulator
plateVerb
In-app purchases
Stereo Modulator
No in-app purchases
plateVerb
No in-app purchases









