Version history
EQ550b
44
ASO score
Text
39/100
Reviews
50/100
Graphic
60/100
Other
0/100
App Rating
4.7
Votes
26
App Age
5y 9m
Last Update
Jan 02, 2026
iAP
$4.99 - 4.99
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
4.73
|
4.57
|
+4%
|
|
Number of Ratings (Voted)
|
26
|
593.4K
|
-100%
|
|
App Age
|
5y 9m
|
8y 5m
|
-32%
|
|
In-app Purchases Price
|
$5
|
$42
|
-88
%
|
|
Update Frequency
|
26d
|
31d
|
-15%
|
|
Title Length
|
6
|
25
|
-76%
|
|
Subtitle Length
|
19
|
27
|
-30%
|
|
Description Length
|
2 311
|
2 749
|
-16%
|
|
Number of Screenshots
|
702
|
1267
|
-45
%
|
|
Size
|
19MB
|
223MB
|
-91
%
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Jan 03, 2026 | Jan 10, 2026 |
|---|---|---|
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No results were found!
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| Top | Jan 03, 2026 | Jan 10, 2026 |
|---|---|---|
|
No results were found!
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| Top | Jan 03, 2026 | Jan 10, 2026 |
|---|---|---|
|
No results were found!
|
||
| Top | Jan 03, 2026 | Jan 10, 2026 |
|---|---|---|
|
No results were found!
|
||
Ranking Keywords in United States
| Keywords | App Rank |
|---|
Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
6
of 30
)
EQ550b
Subtitle
(
Characters:
19
of 30
)
Classic American EQ
Description
(
Characters:
2311
of 4000
)
EQ550b AUv3 plug-in — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the EQ550b AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of EQ550b AUv3 plug-in comes as In-App Purchase.
Based on Classic American EQ from the late '60s, the EQ550b is a continuation of the EQ that played a major role in the history of music recording, but with an additional filter band and several new frequencies. With a surprisingly wide range of tonal variations, the EQ550b is an invaluable and professional audio tool with great flexibility and excellent sonic ability.
Features:
• Standalone and AUv3 plug-in;
• Precise port of Rack Extensions plug-in;
• Modeled vintage EQ;
• Four bands of classic American equalization;
• Each band offers seven selected frequency centers;
• 15 dB of boost/cut per band;
• EQ band 1 and 4 offer shelf/peak switching;
• Proportional Q narrows filter Q at extremes;
• Stereo (Mono), Mid or Side EQ modes;
• Undo/Redo;
• A/B comparison;
• 2x/4x/8x Upsampling;
• Macro controllers;
• Built-in Gain Match;
• Scalable GUI.
Rather than offer a huge assortment of complex features, the EQ550b provides exactly the right number of controls. Its four EQ bands are overlapped significantly to aid in dual roles as problem solver and sweetening device with each band offering seven switchable filter frequencies that span four-to-five octaves. These frequencies, purposely selected to be musical rather than numeric.
Making use of Proportional Q intuitively widens the filter bandwidth at minimal settings and narrows it at higher settings without the need for additional bandwidth controls. This unique feature minimizes the «phase-shift» sound found in many equalizers.
The EQ550b extends the features of the original hardware and joins the flexibility of the digital world to the character of the analog processing. Allows you to choose between equalizer modes (Stereo, Mid, Side) and remove analogue saturation from the processing circuit to deliver pure digital sound.
To use EQ550b as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — EQ550b will appear in the list of Audio Unit extensions for effect plug-ins in the host app.}
Read more
Other
Additional Information
Version history
3.0.3
Jan 02, 2026
- Fixed parameters Automation bug.
If you like EQ550b plug-in, please support us by rating this app in the App Store!
3.0.2
Dec 27, 2025
- Fixed inconsistent Routings switching bug.
If you like EQ550b plug-in, please support us by rating this app in the App Store!