# 528 Player Plus vs aud

The clearest difference is review sentiment: aud at 100% against 528 Player Plus's 0%. aud also leads on rating (5.0 vs 1.0) and update cadence (weekly vs every 2 months). 528 Player Plus's advantage is iOS requirement (15.6 vs 26.5). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. 528 Player Plus sells 10 one-off in-app purchases and aud sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

aud holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of 528 Player Plus's written reviews are positive against 100% of aud's.

528 Player Plus ships an update every 2 months, aud weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 528 Player Plus | aud |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/528-player-plus/id6739763108/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/aud-io/id6787083966/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 79 MB | 129 MB |
| Requires iOS | **15.6** | 26.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [SYQEL INC](https://appshunter.io/developer/1671066431) | [Sanjiv Sathiah](https://appshunter.io/developer/6775678094) |

## What reviewers say

### 528 Player Plus

[App page](https://appshunter.io/ios/app/528-player-plus/id6739763108)

This app retunes your entire music library to the 528 Hz Solfeggio frequency in real-time. Experience your favorite songs with a new sense of harmony and restoration without altering original files. A free trial is available before a one-time purchase unlocks unlimited listening.

**Highlights:** Real-time 528 Hz retuning, Supports entire music library, Distraction-free interface, One-time purchase unlock, Free trial for 20 songs

**Features:** Family Sharing, Siri integration

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited 528 Hz retuning forever. | $19.99 | one-time |
| Frequency - 285 Hz | $19.99 | one-time |
| Frequency - 432 Hz | $19.99 | one-time |
| Frequency - 396 Hz | $19.99 | one-time |
| Frequency - 741 Hz | $19.99 | one-time |
| Frequency - 174 Hz | $19.99 | one-time |
| Frequency - 417 Hz | $19.99 | one-time |
| Frequency - 639 Hz | $19.99 | one-time |
| Solfeggio Core Bundle | $59.99 | one-time |
| All Frequencies | $99.99 | one-time |


### aud

[App page](https://appshunter.io/ios/app/aud-io/id6787083966)

This app combines your local music files with your Apple Music library into a single, beautifully organized interface. It offers advanced playback features and multiple ways to import your music without merging your collections.

**Highlights:** Combines local and Apple Music libraries, Organized by artwork, artist, album, song, playlist, genre, Multiple import options: Files, AirDrop, Wi-Fi, folder watch, Supports FLAC, ALAC, MP3, AAC, WAV, and more, Advanced Pro features: native resolution, gapless playback, EQ, Cross-platform: iPhone, iPad, Mac, Apple Watch, CarPlay, Offline playback

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| aud-io Pro | $14.99 | one-time |


## Frequently asked questions

### Is 528 Player Plus free?

528 Player Plus is free to download, with in-app purchases available.

### Is aud free?

aud is free to download, with in-app purchases available.

### Which has better reviews, 528 Player Plus or aud?

aud is rated higher. 528 Player Plus averages 1.0 out of 5 from 2 ratings, while aud averages 5.0 from 2 ratings.

### Do 528 Player Plus or aud have ads?

Neither 528 Player Plus nor aud shows ads.

### Which is updated more often, 528 Player Plus or aud?

528 Player Plus ships an update every 2 months, and aud weekly. Most recently, 528 Player Plus was updated on October 30, 2026 and aud on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*