MDX Player vs FrequencyCat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MDX Player
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.
- MDX file playback
- Background playback
- Remote control support
- Loop playback
- Dropbox access
- Bundled sample sound
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MDX Player for iOS 1980年代後半〜1990年代にかけて、一部で熱狂的な支持を得た "パーソナルワークステーション" SHARP X68000シリーズ。 X68000シリーズ用の高性能な内蔵音源ドライバとして広く普及したMXDRV。 MXDRV用の音楽データMDX。MDXは演奏データを収録した拡張子.mdxのファイル。 再生に必要なPCMデータを収録した拡張子.pdxのファイルを伴うこともあります。 MDX Player for iOSは、そのMDXの再生に対応したプレイヤーです。 MDXはパソコン通信を媒介として、その数60,000とも言われるほど大量に作られ、流通しました。 伝説的なデータが、今なおその作者のハンドル名と共に、インターネット上に残されています。 * バッググラウンドプレイ * リモートコントロール * ループプレイ * Dropboxアクセス サンプルサウンドとして X68030のテーマ (C) moyashi (hitoriblog.com) をバンドルしています! あの当時を思い出しながら、押入れに眠っているかもしれない5inchフロッピーやMOディスクを掘り出しましょう。
FrequencyCat
Transform your photos into unique sound art using advanced image-to-sound technology. Explore, enjoy, and share your creative audio-visual pieces. Embrace your inner artist and discover the unexpected.
- Morph images into sound art
- Create spectrogram oddities
- Share sound art creations
- Unique audio-visual experience
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Hide an image inside sound. FrequencyCat is a playful tool for exploring the connection between images, sound, and spectrograms. Choose an image, and FrequencyCat transforms it into a unique audio signal. Play the sound and view its spectrogram, and you’ll see the original image emerge again from the frequencies. With FrequencyCat, you can: - Turn images into sound - View audio spectrograms in real time - Play sounds and reveal the images hidden inside them - Explore how different images create different sounds - Discover the relationship between sound, frequency, and Fourier transforms in an intuitive way There’s no magic behind it. Just frequencies, phases, an inverse Fourier transform, and a little curiosity about sound. Whether you’re interested in acoustics, music, signal processing, or simply wondering what an image might sound like, FrequencyCat gives you a new way to explore. Pick an image. Hear what it sounds like.
Screenshots
Verdict
The clearest difference is update cadence: MDX Player at every 15 months against FrequencyCat's every 40 months. MDX Player also leads on device support (3 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, FrequencyCat every 40 months. The most recent releases landed on September 17, 2026 and September 4, 2026 respectively.
| Parameter | MDX Player | FrequencyCat |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 95.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 15 months — better | Every 40 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | NagisaWorks, K.K. | Xuesong Zhang |
Customer experience
MDX Player
FrequencyCat
In-app purchases
MDX Player
No in-app purchases
FrequencyCat
No in-app purchases








