Comparison

DirectionalEQ vs FrequencyCat

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
Currently charting
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

FrequencyCat

Transform your photos into unique sound art using advanced image-to-sound technology. Explore, enjoy, and share your creative audio-visual pieces. Embrace your inner artist and discover the unexpected.

Highlights
  • Morph images into sound art
  • Create spectrogram oddities
  • Share sound art creations
  • Unique audio-visual experience
Features
Read full description

Hide an image inside sound. FrequencyCat is a playful tool for exploring the connection between images, sound, and spectrograms. Choose an image, and FrequencyCat transforms it into a unique audio signal. Play the sound and view its spectrogram, and you’ll see the original image emerge again from the frequencies. With FrequencyCat, you can: - Turn images into sound - View audio spectrograms in real time - Play sounds and reveal the images hidden inside them - Explore how different images create different sounds - Discover the relationship between sound, frequency, and Fourier transforms in an intuitive way There’s no magic behind it. Just frequencies, phases, an inverse Fourier transform, and a little curiosity about sound. Whether you’re interested in acoustics, music, signal processing, or simply wondering what an image might sound like, FrequencyCat gives you a new way to explore. Pick an image. Hear what it sounds like.

Screenshots

DirectionalEQ2 screens
FrequencyCat3 screens

Verdict

The call

The clearest difference is review sentiment: FrequencyCat at 100% against DirectionalEQ's 33%. FrequencyCat also leads on price (Free vs $9.99) and rating (5.0 vs 3.6). DirectionalEQ's advantage is ratings volume (14 vs 1) and chart position (#171 vs unranked). On 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

CostPrice · In-app purchases · Ads · Monetization

FrequencyCat is free to download; DirectionalEQ costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FrequencyCat holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: DirectionalEQ has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of DirectionalEQ's written reviews are positive against 100% of FrequencyCat's.

UpkeepUpdate frequency

DirectionalEQ ships an update every 19 months, FrequencyCat every 40 months. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

Scorecard9 real differences · 2 level
DirectionalEQ versus FrequencyCat: the parameters behind the verdict, then further details
ParameterDirectionalEQFrequencyCat
Price$9.99Free — better
Rating3.6 (14 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings14 — better1
Update frequencyEvery 19 months — betterEvery 40 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#171 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.3 — better16.0
Further details — not scored
Size11 MB3 MB
Age rating4+4+
DeveloperChristian SiedschlagXuesong Zhang

Customer experience

DirectionalEQ

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

FrequencyCat

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DirectionalEQ

No in-app purchases

None

FrequencyCat

No in-app purchases

Questions

Is DirectionalEQ free?
DirectionalEQ costs $9.99, with no in-app purchases.
Is FrequencyCat free?
FrequencyCat is free to download, with no in-app purchases.
Which has better reviews, DirectionalEQ or FrequencyCat?
FrequencyCat is rated higher. DirectionalEQ averages 3.6 out of 5 from 14 ratings, while FrequencyCat averages 5.0 from 1 ratings.
Do DirectionalEQ or FrequencyCat have ads?
Neither DirectionalEQ nor FrequencyCat shows ads.
Which is updated more often, DirectionalEQ or FrequencyCat?
DirectionalEQ ships an update every 19 months, and FrequencyCat every 40 months. Most recently, DirectionalEQ was updated on September 21, 2026 and FrequencyCat on September 18, 2026.

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