# MDX Player vs Opaline FM

The clearest difference is update cadence: Opaline FM at every 6 days against MDX Player's every 15 months. MDX Player's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MDX Player ships an update every 15 months, Opaline FM every 6 days. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MDX Player | Opaline FM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/opaline-fm/id6790603368/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 95.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 13 MB | 3 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NagisaWorks, K.K.](https://appshunter.io/developer/295069630) | [Hideki Konishi](https://appshunter.io/developer/6790603370) |

## What reviewers say

### MDX Player

[App page](https://appshunter.io/ios/app/mdx-player/id639136241)

This app plays MDX music files, a format popular with the SHARP X68000 computer series. It supports background playback, remote control, and loop play, allowing you to relive classic computer music.

**Highlights:** MDX file playback, Background playback, Remote control support, Loop playback, Dropbox access, Bundled sample sound

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Opaline FM

[App page](https://appshunter.io/ios/app/opaline-fm/id6790603368)

Create and perform music with a virtual keyboard and advanced sound editing tools. Explore various playing modes, connect external MIDI devices, and manage your sound library. Offers deep control over FM synthesis parameters.

**Highlights:** Virtual keyboard for immediate performance, Detailed sound editing (algorithm, operators, envelopes, LFO, effects), Poly/Mono and Full/Fingered portamento, Single, Dual, and Split playing modes, External MIDI keyboard support, 32-voice SysEx bank management, Built-in reverb, delay, chorus, and tone effects

**In-app purchases:** none


## Frequently asked questions

### Is MDX Player free?

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

### Is Opaline FM free?

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

### Do MDX Player or Opaline FM have ads?

Neither MDX Player nor Opaline FM shows ads.

### Which is updated more often, MDX Player or Opaline FM?

MDX Player ships an update every 15 months, and Opaline FM every 6 days. Most recently, MDX Player was updated on October 26, 2026 and Opaline FM 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.*