iEQ vs Equalizer Pro +
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iEQ
Adjust the sound of your music library with a ten-band graphic equalizer. Fine-tune audio for headphones or speaker systems by manipulating ten frequency sliders. Compare your custom EQ settings with the original sound to achieve your desired listening experience.
- Ten-band graphic equalizer
- Adjust music library tracks
- Control overall volume
- Compare EQ settings
- Works with headphones and speakers
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Fine-tune the tracks in your music library. In your headphones or any speaker system, anywhere. iEQ is a ten-band graphic equalizer for iOS that provides clean, transparent equalization through ten two-pole cascaded bi-quad IIR filters, centered at sonically and musically useful frequencies. After opening iEQ, simply select the song, playlist, audio-book etc. from your Music Library, Device Files, or iCloud Drive, hit play, and move the sliders up or down until you like what you hear. The Attenuation slider on the left lets you control the overall volume and helps keeps the sound from distorting (NOTE: since the ten frequency cut/boost controls may be used to add more gain to a track already be close to "clipping", it's possible to create distortion with your EQ settings. If this occurs, remove the distortion by lowering the overall signal level with the attenuation control). Use the On/Off switch to compare between the original sound and your EQ’d settings. iEQ your will help your music sound its best, anywhere.
Equalizer Pro +
Enhance your audio experience with a professional equalizer and a full-featured music player. Enjoy high-quality sound, customizable EQ curves, and support for various audio formats. Manage your music library with ease, including playlist creation and song transfer options.
- High-performance equalizer with 32-bit float processing
- Customizable EQ curves with unlimited points
- Plays MP3, FLAC, OGG, WAV, APE files
- Supports iPod Library playback
- Multiple playlists and playback controls
- Song transfer via iTunes File Sharing and WiFi
- CarPlay and Dark Appearance support
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Professional Equalizer + Full featured MP3/OGG/FLAC Player HIGH PERFORMANCE EQUALIZER - Highly optimized equalizing algorithm. Uses much less battery than other EQ apps with comparable algorithm. - High quality equalization without distortion. Uses 32-bit float processing. - Draw EQ curves without limitation of number of points. - Realtime spectrum output FULL FEATURED PLAYER - Play directly from iPod Library. - MP3/FLAC/OGG/WAV/APE file support - lock screen album art & meta-data support - mulitasking - remote control support - Customizable gestures - Multiple playlists - scrubbing, repeat, shuffle - Support ID3 lyrics (LRC and SYLT word-level lyrics), album art. - Transfer songs between PC/MAC using iTunes files sharing - Transfer songs using WiFi - supports CarPlay - supports Dark Appearance EQ PRESETS - 12 built-in EQ Presets - Unlimited user EQ Presets. - You can set EQ preset for individual track. (EQ preset for song is automatically loaded when played) * DRM protected tracks are not supported.
Screenshots
Verdict
The clearest difference is rating: Equalizer Pro + at 4.2 against iEQ's 2.8. Equalizer Pro + also leads on review sentiment (47% vs 17%) and ratings volume (558 vs 5). iEQ's advantage is price ($2.99 vs $4.99) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases, monetization model and device support 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
iEQ costs $2.99 and Equalizer Pro + $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Equalizer Pro + holds the better App Store score, 4.2 against 2.8. That said, the two scores are not equally well evidenced: Equalizer Pro + has 558 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 17% of iEQ's written reviews are positive against 47% of Equalizer Pro +'s.
iEQ ships an update every 2 months, Equalizer Pro + fortnightly. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.
| Parameter | iEQ | Equalizer Pro + |
|---|---|---|
| Price | $2.99 — better | $4.99 |
| Rating | 2.8 (5 ratings) | 4.2 (558 ratings) — better |
| Positive reviews | 17.1% of reviews | 46.8% of reviews — better |
| Number of ratings | 5 | 558 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 0 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Engineered Stuff | Tachyon Factory Inc. |
Customer experience
iEQ
Equalizer Pro +
Bugs and requests
iEQ
Not enough reviews yet to summarise bugs or requests.
Equalizer Pro +
Reported bugs
5 issues- Inability to play songs from iTunes library
- Issues with CarPlay integration
- Inconsistent behavior with iOS updates
- Syncing problems with playlists and album art
- Frequent crashes and freezes
Requested features
6 requests- Expand support for streaming services
- Improve playlist management
- Add more preset EQ options
- Enhance visualizer and UI customization
- Optimize performance for older devices
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- Provide better guidance and tutorials
In-app purchases
iEQ
No in-app purchases
Equalizer Pro +
No in-app purchases
