Rotten Pool Verb vs QuadroSphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rotten Pool Verb
This app offers a unique and characterful reverb effect, capturing the natural acoustics of an abandoned swimming pool and its locker rooms. It provides extensive control over reverb blending, saturation, and filtering for creative sound design.
- Natural reverb from abandoned pool
- Long and short reverb blending
- Saturators for added character
- Variable predelay and decay
- Hi-cut/low-cut filtering
- Presets from Kristian Kohle
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The most beautiful yet disturbingly dirty sounding reverb ever! When Producer Kristian Kohle found this huge abandoned swimming pool he just had to capture it’s unique sound! This pool had been rotting for years already when Kristian entered this lost place armed with his favorite microphones to capture the highly complex, natural reverb of this creepy place. Key Features: - Long and short reverb blending - 6 natural, long reverbs captured in an old, huge, abandoned pool - 2 short reverbs from the pool's locker rooms - 2 saturators for adding extra character - Variable predelay and decay - Hi-cut/low-cut Filtering with pre/post switch - A pack of presets from Kristian Kohle Available in AUv3 and standalone
QuadroSphere
This audio plugin allows musicians to sculpt immersive soundscapes by controlling stereo placement and effects across four distinct frequency bands. Create dynamic, atmospheric audio with automated movement and morphing between saved settings.
- 4 configurable frequency bands
- Control stereo separation, level, and pan per band
- Create and morph between 12 snapshots
- Modulation control for automated sweeps
- Per-band effects (Haas, Delay, Reverb, Chorus, Compressor)
- Convert mono to pseudo-stereo
- MIDI CC control
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QuadroSphere is a great tool for bringing an instrument to life by creating a soundscape with a constantly moving sound source. QuadroSphere splits the incoming audio signal into 4 distinct coloured frequency bands using the frequency bar. Each band has an associated coloured sphere allowing you to control the pan, stereo separation and volume level. You can use this plugin as a way to impose subtle control over stereo placement with little or no movement, or go crazy with random automation. Adding effects such as reverb or delay on a specific frequency band can help create a lush atmospheric swirling which surrounds the listener. This is great for musicians trying to create minimalistic ambient or tranquil soundscapes. You can create up to 12 snapshots of the sphere parameters and effect settings, then morph between them at a designated speed (measured in beats). You can also enable continuous randomization mode, and have full control over which spheres and control which parts are automated. You can also use QuadroSphere as a stereo splitter, using the additional outputs to add your own effects to band outputs. Key Features: ○ 4 Configurable frequency bands. ○ Control stereo separation, level and pan for each band. ○ Create up to 12 Snapshots. ○ Morph between various panning, width and frequency band levels. ○ Modulation control for automated sweeps around pan center. ○ Convert MONO signals into a pseudo-stereo image. ○ Per band Haas, Delay, Reverb, Chorus and Compressor. ○ Allows combined and individual per-band audio outputs. ○ Continuous randomized morphing of the stereo field. ○ Built in Preset Manager with drag and drop support. ○ Power and Solo for each band. ○ Controlable morph speeds. ○ Various animated transition modes. ○ Access most options using AU parameters or MIDI CC control.
Screenshots
Verdict
The clearest difference is review sentiment: QuadroSphere at 100% against Rotten Pool Verb's 50%. QuadroSphere also leads on rating (5.0 vs 4.3). Rotten Pool Verb's advantage is price ($3.49 vs $14.99) and chart position (#189 vs unranked). 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
Rotten Pool Verb costs $3.49 and QuadroSphere $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
QuadroSphere holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 7 and 10 respectively. Written reviews point the same way: 50% of Rotten Pool Verb's written reviews are positive against 100% of QuadroSphere's.
Rotten Pool Verb ships an update monthly, QuadroSphere every 3 weeks. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.
| Parameter | Rotten Pool Verb | QuadroSphere |
|---|---|---|
| Price | $3.49 — better | $14.99 |
| Rating | 4.3 (7 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 | 10 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #189 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 104 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Aurora DSP | 4Pockets.com |
Customer experience
Rotten Pool Verb
QuadroSphere
In-app purchases
Rotten Pool Verb
No in-app purchases
QuadroSphere
No in-app purchases
Questions
Is Rotten Pool Verb free?
Is QuadroSphere free?
Which has better reviews, Rotten Pool Verb or QuadroSphere?
Do Rotten Pool Verb or QuadroSphere have ads?
Which is updated more often, Rotten Pool Verb or QuadroSphere?
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