EQ550 vs mixBase
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EQ550
This audio effect plugin emulates classic American EQs from the late 1960s, offering precise control over equalization with unique Proportional Q technology. It functions as a standalone app or an AUv3 plugin for compatible hosts, providing a flexible and characterful sound shaping experience.
- Standalone and AUv3 plugin
- 3 bands of classic American equalization
- Proportional Q filter bandwidth
- Stereo, Mid, or Side EQ modes
- Undo/Redo and A/B comparison
- Scalable GUI
Read full descriptionHide full description
EQ550 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 EQ550 AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of EQ550 AUv3 plug-in comes as In-App Purchase. The EQ550 faithfully captures the punch, low-frequency transparency, and ultra-tight imaging of iconic American EQs of the late 1960’s. 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. Features: • Standalone and AUv3 plug-in; • 3 bands of classic American equalization; • Each band offers 7 selected frequency centers; • Maximum 15dB of boost/cut per band; • EQ Band 1 and 3 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. The EQ550 provides reciprocal equalization at 21 points in 5 steps of boost to a maximum of 15dB of gain at each point. The twenty one equalization points are divided into three overlapping ranges. The high and low frequency ranges are individually selectable as either peaking or shelving, and a band-pass filter may be inserted independently of all other selected equalization settings. Frequency ranges and boost/cut are selected by switches, and a pushbutton «IN» switch allows the EQ to be silently introduced to the signal path. A small toggle switch is used to insert the band-pass filter into the EQ550. The EQ550 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 EQ550 as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — EQ550 will appear in the list of Audio Unit extensions for effect plug-ins in the host app.
mixBase
This app provides version control for your music projects, allowing you to track every mix from rough drafts to final masters. Listen to any version, share for feedback with time-stamped comments, and manage your release pipeline. It also offers AI-generated cover art and a community feed.
- Track every mix version
- Time-stamped feedback comments
- Master loudness checks (LUFS)
- Release pipeline management
- AI-generated cover art
- Community feed with artist updates
Read full descriptionHide full description
mixBase is version control for your music. Every time you bounce a mix, upload it: mixBase keeps every version of every track, from the first rough to the final master, so you can hear how far a song has come and never lose a good take again. TRACK EVERY VERSION Each upload becomes the next numbered mix of its project. Label it (rough mix, mix 2, final master), move it from Mix to Master to Released, add private notes and a change log, and jump back to any earlier version at any time. LISTEN ANYWHERE A full-screen player with artwork, scrubbing, a queue, shuffle and repeat, lock-screen and Control Center controls, AirPlay, and a Now Playing widget for your home screen. SHARE FOR FEEDBACK Send a private listening link for any mix. Collaborators open it in a browser, no account required, and leave comments pinned to the exact moment they mean. Their notes show up on that mix in the app. MASTER CHECK Measure the loudness of your latest mix (LUFS and peak) right on your phone and get limiter and chain recommendations before you send it off. RUN YOUR RELEASE PIPELINE Add a release and check off every milestone: mixing done, mastering done, artwork ready, submitted to DSPs, social posts out, press release sent. Keep your released catalog, with ISRC, UPC and release dates, in one library synced from your streaming profile. AI COVER ART Describe the vibe and generate cover-art concepts for a track, then apply the one that fits. Every account includes a monthly allowance. HEAR WHAT OTHERS ARE MAKING The community feed shows what other artists on mixBase are working on, with comments on every upload. Report or block anything you don't want to see. BUILT FOR THE STUDIO - Genre, BPM and key on every project - Albums, EPs and playlists to group your tracks - A dark interface that won't blind you in a dim room mixBase is free. There are no subscriptions, paid plans or in-app purchases.
Screenshots
Verdict
The clearest difference is rating: mixBase at 5.0 against EQ550's 4.5. mixBase also leads on in-app purchases (none vs 1) and update cadence (every 10 days vs monthly). EQ550's advantage is ratings volume (11 vs 1) and device support (3 vs 1). On price and ads 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
Both are free to download. EQ550 sells 1 one-off in-app purchase. mixBase asks for nothing beyond the download.
mixBase holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: EQ550 has 11 ratings behind it against 1, so its average is the more settled of the two.
EQ550 ships an update monthly, mixBase every 10 days. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | EQ550 | mixBase |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 20 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | RRS, OOO | Matt Goldman |
Customer experience
EQ550
mixBase
In-app purchases
EQ550
- RRS EQ550 Unlimited$4.99
mixBase
No in-app purchases









