Comparison

DirectionalEQ vs QuadroSphere

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

DirectionalEQ2 screens
QuadroSphere4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

DirectionalEQ costs $9.99 and QuadroSphere $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
DirectionalEQ versus QuadroSphere: the parameters behind the verdict, then further details
ParameterDirectionalEQQuadroSphere
Price$9.99$7.99 — better
Rating3.6 (14 ratings)5.0 (10 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings14 — better10
Update frequencyEvery 19 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better13.0
Further details — not scored
Size11 MB18 MB
Age rating4+4+
DeveloperChristian Siedschlag4Pockets.com

Customer experience

DirectionalEQ

All ratings14 ratings
Positive57.1%
Neutral14.3%
Negative28.6%
Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

QuadroSphere

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DirectionalEQ

No in-app purchases

None

QuadroSphere

No in-app purchases

Questions

Is DirectionalEQ free?
DirectionalEQ costs $9.99, with no in-app purchases.
Is QuadroSphere free?
QuadroSphere costs $7.99, with no in-app purchases.
Which has better reviews, DirectionalEQ or QuadroSphere?
QuadroSphere is rated higher. DirectionalEQ averages 3.6 out of 5 from 14 ratings, while QuadroSphere averages 5.0 from 10 ratings.
Do DirectionalEQ or QuadroSphere have ads?
Neither DirectionalEQ nor QuadroSphere shows ads.
Which is updated more often, DirectionalEQ or QuadroSphere?
DirectionalEQ ships an update every 19 months, and QuadroSphere every 3 weeks. Most recently, DirectionalEQ was updated on September 21, 2026 and QuadroSphere on September 30, 2026.

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