MolaEqualizer vs EQ550
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MolaEqualizer
Enhance your music listening experience with a powerful 16-band equalizer. Adjust audio frequencies with graphic or curve modes, and automatically switch EQ presets based on song information. Enjoy louder playback and wider stereo sound.
- 16-band equalizer
- Graphic and curve EQ modes
- Automatic preset switching
- Total gain adjustment
- Auto gain adjustment
- Wide stereo feature
- Lyrics display
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Audio player that is equipped with easy-to-use 16-band equalizer. By tracing set to draw the curve, it can be set for each band, you can manipulate easily. Without distortion sound by the auto gain adjustment. EQ settings has tow mode, graphic equalizer mode and curve mode. If there is a preset of the same name with genre, artist, album, or title of the song playing, can be switched automatically. You can listen to music while using the settings that were continuous playback. You can designate up to +20 dB amplification in the total level setting, you can play loud enough even in low-level sound recording. With the wide feature, you can play mono tunes with a spread in the stereo. -------------------------------------------------- -------------- Function -------------------------------------------------- -------------- • 16-Band Equalizer (-20dB ~ +20 dB) • The total gain adjustment (-20dB ~ +20 dB) • Auto gain adjustment (to prevent distortion sound) • Switching mode-setting (GraphicEQ mode, curve mode) • EQ can be set independently the left and right in stereo mode • Depending on the song information can be preset automatic switching • Representing and spaciousness to the sound in the wide feature • Display lyrics. • Possible to scroll lyrics automatically. -------------------------------------------------- -------------- The free version has the following limitations: -------------------------------------------------- -------------- * Banner ads will be displayed * Stereo mode is not available When you purchase the full version with in-app purchases, these restrictions will be canceled. -------------------------------------------------- -------------- Please note -------------------------------------------------- -------------- • There are songs such as hanging of DRM, some things can not be played • The sound may be heard occasionally skips or iPod touch, etc.
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
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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.
Screenshots
Verdict
The clearest difference is review sentiment: MolaEqualizer at 59% against EQ550's 33%. MolaEqualizer also leads on iOS requirement (8.0 vs 10.0). EQ550's advantage is update cadence (monthly vs every 4 months) and rating (4.5 vs 4.3). On price, ratings volume, 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
Both are free to download. MolaEqualizer sells 1 one-off in-app purchase and EQ550 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
EQ550 holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 17 and 11 respectively. Written reviews complicate that: 59% of MolaEqualizer's written reviews are positive against 33% of EQ550's, so the app with the better star average is not the one people write more warmly about.
MolaEqualizer ships an update every 4 months, EQ550 monthly. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.
| Parameter | MolaEqualizer | EQ550 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (17 ratings) | 4.5 (11 ratings) — better |
| Positive reviews | 58.7% of reviews — better | 33.3% of reviews |
| Number of ratings | 17 — better | 11 |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 10.0 |
| Further details — not scored | ||
| Size | 15 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Studio ra,labo. | RRS, OOO |
Customer experience
MolaEqualizer
EQ550
In-app purchases
MolaEqualizer
- MolaEqualizer Genuine Version$2.99
EQ550
- RRS EQ550 Unlimited$4.99









