# LouderLogic

> Advanced audio player with professional sound enhancement and playback control. (iPhone/iPad app by McDSP.)

- Source: https://appshunter.io/ios/app/louderlogic/id459333840 (this page in markdown: same URL + `.md`)
- Developer: [McDSP](https://appshunter.io/developer/318955232)
- Category: Music, Entertainment
- Price: $3.99
- Rating: 4.20/5 from 76 App Store ratings · 151 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 19 MB
- Languages: American English
- Released: 2011-09-05
- Data updated: 2026-08-31
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/louderlogic/id459333840/reviews.md

## What is LouderLogic?

Looking for the best listening experience for your iTunes Library? Look no further than LouderLogic – the Advanced Audio Player.

LouderLogic features include:

- Professional audio enhancement with patented ALX technology
- 4-band parametric EQ with Spectrum Animation
- Dynamic interactive Play Queues
- Crossfading

LouderLogic brings the fullness you crave out of every song, using patented Audio Level eXtension (ALX) technology by McDSP. LouderLogic minimizes volume fluctuations between songs while maximizing all the musical details the artist intended you to enjoy. Simply put, you’ll get more from your music!

With the McDSP 4-band parametric equalizer, you get the highest quality interactive EQ for your iOS device, along with the ability to customize and tweak to your heart's content. Easily drag the curves to control boost and cut, and use two fingers to adjust the Q (bandwidth).  Spectrum Animation shows you what your music 'looks like' so you can EQ like a pro.

Play Queues let you modify what's coming up next at any time, without interrupting your current track.

Adjust the crossfade time between songs from 1 to 30 seconds.

“If you don’t have LouderLogic I don’t know why you’re even listening to music.” – Chaka Blackmon, Producer/Songwriter for Christina Aguilera, CeCe Winans, MTV and Disney.

“LouderLogic is perhaps the most impressive audio enhancement app I have used.” – Kit Eaton, New York Times.

Please note that while LouderLogic does play back DRM protected music, it cannot apply ALX enhancement to DRM protected audio.  ALX enhancements cannot be applied to music that is still "in the cloud" in iTunes Match, but can be applied once downloaded to your device.

Requires iOS 8.0+

## Key features

- Patented ALX audio enhancement
- 4-band parametric EQ with Spectrum Animation
- Dynamic interactive Play Queues
- Crossfading between songs
- Volume fluctuation minimization

## What do users think of LouderLogic?

Overall sentiment: neutral

**Pros**

- 🚀 Excellent volume boost
- 🔊 Improves audio quality
- 🎧 Great for podcasts and music
- 🎨 Customizable EQ settings
- 🔀 Seamless crossfading between tracks

**Cons**

- 🐛 Frequent crashes and freezes
- 🔁 Issues with playlist playback
- 🕰️ Slow library loading times
- 💰 Inconsistent pricing between versions
- 📚 Lack of support for DRM-protected music

**Commonly reported bugs**

- App crashes on launch
- Playback issues with certain audio files
- Syncing problems with iTunes library

**Most requested features**

- Add search and playlist management features
- Improve compatibility with newer iOS versions
- Provide better customer support and app updates
- Introduce more customization options for the UI

## Recent user reviews (10 of 151)

All indexed reviews: https://appshunter.io/ios/app/louderlogic/id459333840/reviews.md

### 1/5 — It would be great if it worked

*2025-06-25*

I would have given it five stars if it worked, but it keeps freezing. I had been looking for an app like this for a long time . I have over 13,000 songs on my phone and many of them are from old cd's, so the volume fluctuates wildly . When I listen to any music on my phone I continually have to reach for the volume knob, and there are quite a few tracks that I can't even hear in my work van, which is very noisyl(and sound check in the music app is a joke, it only makes everything quieter). So when I found Louder Logic I immediately downloaded the free version to test it out. It actually did normalize the volume on almost every track (and it accesses the music library so I could even listen to my playlists w/o having to create new ones for the app, like with Fubar 2000, which only plays music at the original volume, so is useless for what I want) and I thought it was great. I drive about 350 miles a day for work so having almost all of my music play at the same volume all day was great. So I DL'ed the "for iphone" version for $1.99. It worked for a few days and then froze when I reopened it when I got into my car to go to work. I deleted it and re-downloaded. It worked for a couple of days and then froze again. I deleted it and DL'ed the $3.99 version. That worked for a couple of days and then froze. So I deleted it, re-DL'ed and it worked for a couple of days. I thought "The benefits are worth having to delete it and reinstall every once in a while". Today I had to delete and reinstall before I went to work, it worked fine all day, and then froze when I went to leave work. It's just not worth the hassle anymore. I am deleting it permanently and asking for a refund for both of the versions I paid for and I will not reinstall it unless they finally do an update so it actually works like it's supposed to. And in my humble opinion, when an app is no longer being supported by the developer, they should remove it from the app store. I'm sure they're making money off of people who download their product and then delete it because it doesn't work and then never ask for a refund because it's only a few dollars. It's almost like a scam.

### 5/5 — Power

*2024-06-08*

This app was the missing link in my motorcycle sound system upgrade! Powers my speakers up to where I can hear them clearly at 80 MPH with a helmet on!

### 3/5 — Crashes a lot

*2023-11-08*

A very nice app, when it works.  It crashes a lot on iPad and currently not working on my iPhone.

### 5/5 — Best one the App

*2023-09-02*

Holy moly great player……..U can configure your own EQ…….thank you very much!!!
If ya want the best don’t hesitate to get this

### 3/5 — Used to be brilliant

*2023-07-17*

Unfortunately, Louder Logic will no longer play my music due to DRM.

Oddly, Apple Music App will play all the music without a problem?

Above all that, none of my music has been purchased from Apple.  My music consists of my own synth/keyboard recordings and favourite CD’s?   

I like this app and it really enhances the music, compared to Apples own app and have been using Louder Logic for 10 years.    Sadly, the app is no longer useable on an iPhone 8.

Thanks

### 5/5 — The best sound check

*2023-07-05*

This is the best for cross fade and sound check. Apple should incorporate this technology into Apple Music

### 1/5 — Different prices for the same thing!!!

*2022-10-16*

Why did I just buy the &3.99 version, for mi iPhone when you have the iPhone version for $1.99!?!?  Very deceptive developer!!!
I feel hoodwinked!!

### 1/5 — I used to really love this app

*2022-09-16*

I've been running the free version of LouderLogic for several years on an old iPod. Loved it. Absolutely loved it. Then I opened it today and thought, "I really should pay for all this pleasure." So I bought the app and downloaded it. And wouldn't you know, it now won't play a single motherloving song. It says you've got to have at least iOS 8. I have iOS 9.3.5, but my songs won't play. I deleted the paid app and tried the free version, but nope. I deleted them both and started over. Nope nope nope. And just try to troubleshoot anything online. I'm really bummed, but clearly it's time to move on.

### 3/5 — Gen

*2022-09-15, version 2.2.2*

Please please update the latest version there’s a new iOS 16 update from apple and this app is not seem to work properly since the software update so please

### 5/5 — Stuart

*2022-09-12*

Brilliant - well done.

## Frequently asked questions about LouderLogic

### What does LouderLogic do?

LouderLogic is an advanced audio player designed to enhance your listening experience. It uses patented ALX technology to bring out the fullness and detail in your music, minimize volume fluctuations between songs, and offers professional-grade audio controls.

### What are the key features of LouderLogic?

Key features include professional audio enhancement with patented ALX technology, a 4-band parametric equalizer with Spectrum Animation for visual EQ feedback, dynamic interactive Play Queues to manage your upcoming music, and adjustable crossfading between tracks.

### How much does LouderLogic cost?

LouderLogic is a paid application. The provided data indicates it is a one-time purchase and does not have in-app purchases or a subscription model.

### What devices is LouderLogic compatible with?

LouderLogic requires iOS 8.0 or later. It is designed for iOS devices and can play back music from your iTunes Library.

### Can LouderLogic enhance all music files?

LouderLogic can enhance most music files from your iTunes Library. However, it cannot apply ALX enhancement to DRM-protected music or music that is still stored "in the cloud" via iTunes Match; it must be downloaded to your device first.

## Version history (last 5 releases)

### 2.2.2 — 2017-01-27

This update from Apple will improve the functionality of this app. No new features are included.

We've fixed a few more bugs in the spectrum displays - let us know what you think!

### 2.2.1 — 2016-12-03

Updates to better support iOS10.
Minor bug fixes.

### 2.2.0 — 2016-10-19

Updates to support iOS 10.
Bug fixes.

### 2.1.9 — 2016-09-19

Bug fixes.

### 2.1.8 — 2016-09-13

Bug fixes.

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## More apps by McDSP

- [LouderLogic for iPhone](https://appshunter.io/ios/app/louderlogic-for-iphone/id474642794)
- [LouderLogic Free](https://appshunter.io/ios/app/louderlogic-free/id481536444)

All apps by McDSP: https://appshunter.io/developer/318955232

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*