JAX DYNAMICS vs RetroAMP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JAX DYNAMICS
This audio processing tool offers a single-band dynamics processor with versatile stereo operation modes, including independent and linked mid/side processing. It also features a parallel processing option for enhanced audio manipulation. The tool is distributed as an app extension for use within compatible music applications.
- Single-band dynamics processor
- Multiple stereo operation modes
- Independent and linked mid/side processing
- Parallel processing (mix) option
- AudioUnit (AUv3) format
- Universal app for macOS, iOS, iPadOS, visionOS
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The JAX DYNAMICS : Compressor is a single band dynamics audio processor and supports different stereo operation modi (like independent stereo, linked stereo, independent mid/side and linked mid/side processing) and has a parallel processing option (mix) too. The JAX Compressor is a dynamics processor in AudioUnit (AUv3) format. The audio unit itself (an app extension) is embedded into a small demo app. This is required for app distribution on Apple platforms. Installing the app will make the audio unit available for system wide usage with audio unit hosts (music apps), which support loading 3rd party app extensions in AUv3 format. There is a manual for our Dynamics Series Basic located at : https://audio.digitster.com/jax-dynamics-compressor A basic demonstration video for the dynamics series can be seen here : https://youtu.be/hOwM1t6jYes?si=gqlpp6oQRXtUuj8V This app is truly 'universal', meaning, unit is available for : - MacOS (Silicon) - iOS (iPhone) - iPadOS (iPads) - visionOS (Apple Vision Pro) Please note, that AudioUnits (AUv3) require a dedicated supporting host application to perform.
RetroAMP
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RetroAMP is a cloud music player inspired by the golden age of desktop media players — reimagined for iPhone. Sign in and instantly access your personal music library stored in the cloud. No syncing cables, no storage limits on your device. Just your music, streamed anywhere. FEATURES • Cloud Library — Browse your songs, albums, and playlists streamed from your personal cloud storage • Internet Radio — 30+ curated stations from SomaFM, covering chillout, electronic, indie, jazz, ambient, and more • 10-Band Equalizer — Fine-tune your sound with presets like Pop, Rock, Jazz, Classical, or create your own • Reverb Engine — Add depth with Hall, Plate, Room, Cathedral, and other reverb presets • Real-Time Visualizations — Spectrum analyzer, circular spectrum, VU meters, and particle effects that react to your music • 7 Themes — Linen, Sterling, Mixtape, Boombox, Audiophile, Midnight Neon, and Retro Amber. Each transforms the entire interface • Now Playing Queue — Manage your queue, shuffle, repeat, and see what's coming next • Gapless-quality streaming with seek support and range requests BUILT FOR MUSIC LOVERS RetroAMP brings back the experience of customizable music players — the themes, the visualizations, the EQ sliders — in a modern, cloud-first package. No ads. No algorithmic recommendations. Just your music and a beautiful player. Requires a RetroAMP account. Create one for free in the app.
Screenshots
Verdict
The clearest difference is price: RetroAMP at Free against JAX DYNAMICS's $4.99. JAX DYNAMICS's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On 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
RetroAMP is free to download; JAX DYNAMICS costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | JAX DYNAMICS | RetroAMP |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 26 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Guell | Rishabh TANDON |
In-app purchases
JAX DYNAMICS
No in-app purchases
RetroAMP
No in-app purchases








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