EQ550
By RRS, OOO
EQ550 is an AUv3 audio plug-in for iOS that emulates 1960s American equalization hardware for use in mobile digital audio workstations.
The App DNA
What makes this app unique?
The app removes the barrier of needing expensive analog hardware to achieve specific vintage frequency transparency and imaging in mobile mixing workflows.
For Mobile music producers and audio engineers using iOS-based digital audio workstations.
What does it look like?
Key features
Filter bandwidth widens at minimal settings and narrows at higher settings to minimize phase-shift.
Integrates as an effect plug-in within host apps like GarageBand, Auria, and AUM.
Provides 5 minutes of free play time, reloadable indefinitely.
How much does it cost?
The freemium model uses a recurring 5-minute demo session to encourage conversion to the unlimited paid version.
Velocity
Dormant developmentperformanceShow more...
With only one release in the observed window and 297 days since the last update, the app is currently in a state of inactivity. Development has effectively ceased, as no new features or maintenance patches have been deployed in nearly ten months. The final recorded update focused exclusively on minor bug fixes, and there is no evidence of ongoing operational support.
Who built it?
RRS, OOO
13+ apps tracked · Music
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RRS Passive EQ Collection
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RRS EQ173
PolyIvoks Filter
RRS CL1
EQ550b
Comp 609
EQ560
RRS EQ3
Bass Enhancer
RRS InspirerUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for EQ550
How's the Music market?
EQ550 holds a 4.45 rating across 11 total ratings, reflecting a niche but stable user base in the Music category. The lack of updates for 298 days suggests a maintenance-mode posture that limits its ability to compete with more active audio-plug-in developers.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for EQ550
Where is it heading?
The mobile audio plug-in market is consolidating around developers who maintain a consistent update cadence to match iOS system changes. EQ550 remains advantaged by its specific analog-emulation quality, but the lack of recent development leaves it exposed to churn if compatibility issues arise.
- The 298-day update silence suggests the app is in maintenance mode, which risks losing professional users who require consistent iOS compatibility.
- The Proportional Q filter remains a high-fidelity differentiator that continues to serve the specific needs of mobile audio engineers.
The SWOT
- Proportional Q filter design establishes technical fidelity as a differentiator.
- AUv3 plug-in support enables professional workflows within mobile DAWs.
- Expanding the preset library could provide recurring value for professional producers.
Next best moves
Audit AUv3 compatibility for the latest iOS version because the 9-month release gap creates churn risk → maintain professional user trust
The counter-intuitive read
The 5-minute demo limit is not just a trial…
Read the full takeBottom line
EQ550 relies on its faithful analog emulation to retain professional users, but the 9-month development silence creates a compatibility risk that threatens the app's long-term viability in the fast-moving iOS audio space.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is EQ550 compatible with GarageBand?
Does EQ550 offer a free trial?
What makes EQ550 different from standard digital equalizers?
Sources
- [1] App Store
Report last updated