# LouderLogic for iPhone

> Advanced audio player with professional sound enhancement and EQ for iTunes library. (iPhone/iPad app by McDSP.)

- Source: https://appshunter.io/ios/app/louderlogic-for-iphone/id474642794 (this page in markdown: same URL + `.md`)
- Developer: [McDSP](https://appshunter.io/developer/318955232)
- Category: Music, Entertainment
- Price: $1.99
- Rating: 4.20/5 from 36 App Store ratings · 93 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 13 MB
- Languages: American English
- Released: 2011-11-08
- Data updated: 2026-08-20
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/louderlogic-for-iphone/id474642794/reviews.md

## What is LouderLogic for iPhone?

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
- Maximizes musical details

## What do users think of LouderLogic for iPhone?

Overall sentiment: mixed

**Pros**

- 🔊 Great sound quality/richness
- ⬆️ Increased volume/loudness
- 🎚️ Good EQ/customization
- ↔️ Smooth crossfading
- 🎶 Volume leveling across tracks
- 👍 Easy to use interface
- 💰 Good value for money
- 🚀 Works well with Bluetooth/speakers/headphones
- ✅ Does what it claims

**Cons**

- 🐛 Frequent crashes
- 🐛 Songs skipping/repeating
- 🐛 App not working on newer iOS versions
- 🐛 No support/developer unresponsiveness
- 🐛 Dated UI/looks
- 🐛 Library loading issues
- 🐛 DRM protection issues
- 🐛 No sound output
- 🐛 Album artwork issues
- 🐛 Inconsistent performance

**Commonly reported bugs**

- Crashes on newer iOS versions (15.3.1, iOS 10, iOS 6)
- Songs crash or skip randomly
- App stops working after a few songs
- Library takes a long time to load
- App crashes when turning to use EQ
- Music playback is 'chuggy' or buffers
- App doesn't play certain songs (DLC)
- Album artwork is mixed up or missing
- Presets not showing up
- App doesn't support over iOS 8
- No multitasking
- No spectrum bars
- No access to presets
- Start/stop points in iTunes not recognized
- App freezes
- Support doesn't respond
- Doesn't fit iPhone 6+ screen
- Won't play 24bit wave files
- Takes a long time to load library
- Doesn't play half the songs
- Crossfading doesn't work
- Songs repeat or start halfway
- Music cuts in and out on iOS 6
- DRM protection issues with ripped CDs
- App quits in middle of biking
- Volume boost is not significant
- No sound output
- App thinks ripped music is DRM-protected

**Most requested features**

- Integration with Apple Music/streaming apps
- DSP effects for all songs
- Work with Apple Music
- Save files for other devices
- Adjustable font size
- Search function
- Update play counts in iTunes
- Ability to store multiple EQ curves
- Dark mode option
- Graphic EQ option
- Shuffle button in playlists
- Real-time shuffle
- EQ presets
- Spotlight search
- Full screen support for newer iPhones
- Gapless playback

## Recent user reviews (10 of 93)

All indexed reviews: https://appshunter.io/ios/app/louderlogic-for-iphone/id474642794/reviews.md

### 5/5 — Freon Green

*2026-06-26*

Love LouderLogic!

### 1/5 — Such a shame. This was THE best player out there.

*2023-06-05*

Such a shame that McDSP stopped supporting this app.  It was heads and tails above everything out there.  I’d even pay for an updated version.  Unfortunately, all it does is crash on any of the last few iOSs.

### 3/5 — This App should not be found in EQ key note.

*2022-04-08, version 2.2.2*

It's ok, but I delete it after one minute.Do not have any use for it.

### 4/5 — Great App

*2022-02-25*

Great App, sound is amazing , but since new apple update 15.3.1 it crashes often

### 5/5 — The Best

*2021-05-04*

LouderLogic est the Best. J’ai essayé bon nombre de  apps d’applications de musique. 
Étant extrêmement exigent, la seule application qui me entièrement satisfaction avec mon AirPod et  Apple car dans ma voiture.
Bravissimo.

### 4/5 — DPS

*2021-04-11, version 2.2.2*

Please work with Apple Music so all of our songs can have DSP effect.   Thank you.

### 2/5 — Crashed

*2020-04-24*

Don’t waste your money or time. Crashed on the third song played.

### 4/5 — Great app

*2019-09-10*

The best player ever. However there is a few bugs, sometimes songs get skipped while playing one and jumps to another song. iTunes will march through the same song and not jump to the next.

### 5/5 — Highly Recommendable

*2019-07-28, version 2.2.2*

I have used this app for a good 5 years now and it has never once let me down. My sound quality in music is much better and the app is easy to use.

### 1/5 — My library was cut in less than 1/4 of its content

*2019-04-13*

Waste of money. I want a refund.

## Frequently asked questions about LouderLogic for iPhone

### What does LouderLogic do?

LouderLogic is an advanced audio player designed to provide the best listening experience for your iTunes library. It uses patented ALX technology for professional audio enhancement, minimizing volume fluctuations and maximizing musical details. It also features a 4-band parametric equalizer and dynamic play queues.

### What are the key features of LouderLogic?

Key features include patented ALX technology for professional audio enhancement, a 4-band parametric EQ with Spectrum Animation for detailed sound customization, dynamic interactive Play Queues to manage your music on the fly, and crossfading between songs for a seamless listening experience.

### How much does LouderLogic cost?

Based on the provided information, LouderLogic is a paid application. It does not have in-app purchases or ads, indicating a one-time purchase model for the full functionality.

### What are the compatibility requirements for LouderLogic?

LouderLogic requires iOS 8.0 or later. It is designed for iPhone and can enhance music from your iTunes library. Note that ALX enhancement cannot be applied to DRM-protected music or music that is still 'in the cloud' in iTunes Match, but can be applied once downloaded to your device.

### Can LouderLogic play DRM-protected music?

Yes, LouderLogic can play back DRM-protected music. However, it's important to note that the advanced ALX enhancement technology cannot be applied to DRM-protected audio files. The enhancement is only available for non-DRM protected music.

## 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](https://appshunter.io/ios/app/louderlogic/id459333840)
- [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 2026-08-20.*