DirectionalEQ vs QuadroSphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DirectionalEQ
This audio plugin allows independent equalization of different directions within the stereo field. It offers five bands with advanced filter types, enabling precise adjustments to specific audio directions for a more nuanced sound. Designed for use within compatible music production host apps.
- Independent equalization of stereo field directions
- Five bands with state-of-the-art filter types
- 64-bit processing and 2x oversampling
- Specify direction for each band's operation
- Works as an Audio Unit or Inter App Audio plugin
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Traditional EQs influence the spectrum of the whole stereo field simultaneously. L/R or Mid-Side-EQs allow you to treat the two channels or the mid and the side signal simultaneously. DirectionalEQ takes this concept one big step further: now you can equalize all directions in the stereo field independently! With five bands, each of them providing state-of-the-art filter types (including 64 bit processing and 2x oversampling) plus the unique ability to specify the direction in which the channel is operational. So you need more bass at 2 o’clock, less midrange at 11 o’clock and a bit more treble from the left? No problem at all, that’s exactly what this EQ has been made for! This app is intended to work as an Audio Unit or Inter App Audio plugin within a compatible host app like Garageband, Cubasis or Auria.
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 DirectionalEQ's 33%. QuadroSphere also leads on rating (5.0 vs 3.6) and update cadence (every 3 weeks vs every 19 months). DirectionalEQ's advantage is iOS requirement (9.3 vs 13.0). On ratings volume, 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
DirectionalEQ costs $9.99 and QuadroSphere $7.99 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 3.6. Both are backed by a comparable volume of ratings — 14 and 10 respectively. Written reviews point the same way: 33% of DirectionalEQ's written reviews are positive against 100% of QuadroSphere's.
DirectionalEQ ships an update every 19 months, QuadroSphere every 3 weeks. The most recent releases landed on September 21, 2026 and September 30, 2026 respectively.
| Parameter | DirectionalEQ | QuadroSphere |
|---|---|---|
| Price | $9.99 | $7.99 — better |
| Rating | 3.6 (14 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 10 |
| Update frequency | Every 19 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 13.0 |
| Further details — not scored | ||
| Size | 11 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Siedschlag | 4Pockets.com |
Customer experience
DirectionalEQ
QuadroSphere
In-app purchases
DirectionalEQ
No in-app purchases
QuadroSphere
No in-app purchases
Questions
Is DirectionalEQ free?
Is QuadroSphere free?
Which has better reviews, DirectionalEQ or QuadroSphere?
Do DirectionalEQ or QuadroSphere have ads?
Which is updated more often, DirectionalEQ or QuadroSphere?
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