# 528 Player Plus vs Armpit

The clearest difference is review sentiment: Armpit at 100% against 528 Player Plus's 0%. Armpit also leads on rating (5.0 vs 1.0) and in-app purchases (none vs 11). 528 Player Plus's advantage is iOS requirement (15.6 vs 26.0). On price, ratings volume and ads there is nothing between them.

Both are free to download. 528 Player Plus sells 11 one-off in-app purchases. Armpit asks for nothing beyond the download.

Armpit holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 0% of 528 Player Plus's written reviews are positive against 100% of Armpit's.

528 Player Plus ships an update every 2 months, Armpit fortnightly. The most recent releases landed on September 26, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 528 Player Plus | Armpit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/528-player-plus/id6739763108/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/armpit/id6783437224/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 79 MB | 9 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SYQEL INC](https://appshunter.io/developer/1671066431) | [Pierre Ugaz](https://appshunter.io/developer/6783437226) |

## 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 (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited 528 Hz retuning forever. | $19.99 | one-time |
| Frequency - 963 Hz | $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 |


### Armpit

[App page](https://appshunter.io/ios/app/armpit/id6783437224)

This music player connects to your personal Navidrome server, allowing you to stream your entire music library in original quality. Enjoy features like gapless playback, a 10-band equalizer, and offline listening across multiple Apple devices.

**Highlights:** Connects to Navidrome server, Original-quality streaming (FLAC), True gapless playback, 10-band equalizer, Offline listening, Cross-device sync, CarPlay and Apple Watch support

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 528 Player Plus free?

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

### Is Armpit free?

Armpit is free to download, with no in-app purchases.

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

Armpit is rated higher. 528 Player Plus averages 1.0 out of 5 from 2 ratings, while Armpit averages 5.0 from 4 ratings.

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

Neither 528 Player Plus nor Armpit shows ads.

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

528 Player Plus ships an update every 2 months, and Armpit fortnightly. Most recently, 528 Player Plus was updated on September 26, 2026 and Armpit on October 3, 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.*