# Umbrex: Music Player for Plex — Visualizer, Key & BPM, DJ Mix > Plex and local music player with visualizers, key/BPM analysis, and DJ features. (iPhone/iPad app by NATHAN THOMAS MATHIS.) - Source: https://appshunter.io/ios/app/umbrex-music-player-for-plex/id6792601467 (this page in markdown: same URL + `.md`) - Developer: [NATHAN THOMAS MATHIS](https://appshunter.io/developer/1870347850) - Category: Music, Utilities - Price: $7.99 (on sale, was $9.99) - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 18.0 · 6 MB - Languages: American English - Released: 2026-10-04 - Data updated: 2026-10-23 - Monetization: paid ## What is Umbrex? A music player for your Plex Media Server and your own files, with 35 reactive visualizers and on-device key and BPM analysis. Stream your Plex library or import from the Files app, and keep each source in its own library. Let the visualizers move with the music, fullscreen or inside the album art. Then find the key and BPM of every track and mix in key with Camelot-wheel colors. Umbrex can also lead the jam. It sends the playing track's tempo and key to AUM over MIDI, so your delays stay in time and PitchLock follows the song's key for instant karaoke. It sends MIDI beat clock to any app or gear that follows clock, and it can clock a Pocket Operator over an audio cable so you can remix along. Analysis runs entirely on your device: your music is never uploaded. No sign-up, no ads, no tracking. FEATURES • Plex Media Server streaming with plex.tv sign-in, including synced lyrics from your server where available • Download Plex tracks and keep listening offline • 35 reactive visualizers that move with the music, fullscreen or inside the album art • Artwork that pulses on the beat • On-device key and BPM detection for your local and Plex tracks • Camelot-wheel keys for harmonic mixing • Sort, filter, and build Up Next queues by key and BPM • DJ modes: beatmatched transitions between tracks, in order or shuffled • AUM Sync: send each track's tempo and key over MIDI • MIDI beat clock, locked to the track's beat grid • Pocket Operator sync over an audio cable • Slowed + reverb and nightcore remixes, artwork treatment included • 10-band graphic EQ with presets and a preamp • CarPlay, Siri, and Shortcuts support Supports MP3, AAC/M4A, WAV, AIFF, FLAC, and CAF files. Key and BPM analysis, the waveform seek bar, beatmatched DJ transitions, beat-synced effects, and tempo and key sync require iOS 27 or later. Playback, Plex, visualizers, the EQ, remixes, and CarPlay work on iOS 18 and later. ## Key features - Plex Media Server streaming - 29 reactive visualizers - On-device key and BPM detection - Camelot-wheel keys for harmonic mixing - DJ modes with beatmatched transitions - CarPlay and Siri support - 10-band graphic EQ ## Is Umbrex safe? Not enough ratings yet to assess Umbrex. ## Is Umbrex legit? Umbrex: Music Player for Plex appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Umbrex is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Frequently asked questions about Umbrex ### What is Umbrex? Umbrex is a music player that connects to your Plex Media Server or local files. It features 29 visualizers, on-device key and BPM analysis, and DJ mixing capabilities. ### Does Umbrex have ads? No, Umbrex is ad-free. The app description explicitly states 'No sign-up, no ads, no tracking' to ensure an uninterrupted user experience. ### How much does Umbrex cost? Umbrex is a paid application, priced at $9.99. This one-time purchase grants access to all its features without ongoing subscription fees. ### What devices support Umbrex? Umbrex is designed for iOS devices, specifically the iPhone and iPad. Key and BPM analysis features require iOS 27 or later, while core playback and visualizers work on iOS 18 and later. ### Can Umbrex analyze music key and BPM? Yes, Umbrex performs on-device key and BPM detection for both local and Plex tracks. This analysis is used for features like harmonic mixing with Camelot-wheel colors and sorting by key/BPM. ### Does Umbrex offer DJ features? Yes, Umbrex includes DJ modes that allow for beatmatched transitions between tracks, either in order or shuffled. It also supports sending tempo and key information via MIDI. ### How often is Umbrex updated? The latest version of Umbrex is 1.0.0, and it was last updated on October 4, 2026. Based on this release date, it appears to be a new application. ### What music file formats does Umbrex support? Umbrex supports a wide range of audio file formats including MP3, AAC/M4A, WAV, AIFF, FLAC, and CAF. This ensures compatibility with most of your music library. ## Version history (last 5 releases) ### 1.4.0 — 2026-10-21 What's new: • Improved the iPad player layout so it works in portrait, Split View, Slide Over, and resized windows • Fixed the player staying scrolled down after resizing an iPad window • Fixed scrolling and dismissing the player while the visualizer is showing • Improved Plex settings with a clearer server connection and a separate custom address section • Added more breathing room to song rows on iPhone ### 1.3.0 — 2026-10-17 What's new: • Improved app performance for smoother scrolling • Improved library refresh so large Plex libraries update faster • Improved artwork loading so covers appear without stutter when the track changes • Improved Plex downloads so large tracks download faster and use less memory • Improved visualizer preset transitions so they finish in about two seconds • Fixed oversized artwork clipping in the player ### 1.2.0 — 2026-10-11 What's new: • Added MIDI clock output to USB MIDI hardware, locked to the playing track • Added an optional key drone that holds the track's root note on your hardware • Added swipe down to dismiss the full-screen player • Improved AUM Sync with a live tempo and key readout • Improved layout on foldables and resizable windows so tabs and search fit the window • Key badges now default to grayscale, with color still available in Appearance • Fixed artwork sizing on short windows so the player controls are not clipped ### 1.1.0 — 2026-10-06 What's new: • Improved offline playback: downloaded Plex tracks always play from the device • Improved Add from Files imports • Improved library refresh speed and picks up files that changed in place • Improved lyrics centering on iPhone when track info is showing ### 1.0.0 — 2026-10-04 No release notes. ## More apps by NATHAN THOMAS MATHIS - [NAM AUv3: Neural Amp Modeler](https://appshunter.io/ios/app/nam-auv3-neural-amp-modeler/id6791673543) - [Chromatic Tuner AUv3](https://appshunter.io/ios/app/chromatic-tuner-auv3/id6791699061) - [PitchLock: AUv3 Vocal Tuner](https://appshunter.io/ios/app/pitchlock-auv3-vocal-tuner/id6791833535) - [Afterverb: AUv3 Plate Reverb](https://appshunter.io/ios/app/afterverb-auv3-plate-reverb/id6798475883) - [4Comp: AUv3 Compressor Plugin](https://appshunter.io/ios/app/4comp-auv3-compressor-plugin/id6805205834) All apps by NATHAN THOMAS MATHIS: https://appshunter.io/developer/1870347850 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-23.*