Primuse vs Armpit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Primuse
Consolidate all your music sources, from local files and NAS drives to cloud storage and streaming services, into a single, intuitive interface. Enjoy audiophile-grade playback with advanced features and smart discovery tools.
- Unified playback from NAS, cloud, local files, and streaming
- Audiophile-grade playback with lossless decoding
- Spatial audio and real-time spectrum visualizer
- Smart discovery and playlist generation
- Powerful search including lyrics and Pinyin
- DLNA receiver functionality
- Offline downloads and smart caching
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Bring your music, podcasts, audiobooks and internet radio together on iPhone and iPad. Play local files or connect to your own servers, NAS and cloud drives, with synced lyrics, rich audio controls and a player you can make your own. YOUR FILES, SERVERS AND CLOUD DRIVES Connect to Navidrome, Subsonic/OpenSubsonic, Airsonic, gonic, Jellyfin, Emby, Plex, Synology Audio Station, Fn Music, Daoliyu Music and Songloft. Browse Synology or QNAP NAS and cloud drives including Google Drive, OneDrive, Dropbox, Baidu Netdisk, 123 Cloud Drive, Guangya Cloud Drive and Drime. Supported protocols include WebDAV, SMB/CIFS, FTP/FTPS, SFTP, NFS, S3 and UPnP/DLNA. AUDIOBOOKS AND PODCASTS Connect Audiobookshelf or Ting Reader, or add your own M4B and spoken-word files. Keep books on a separate shelf with chapters, saved positions, bookmarks, speed control and a sleep timer. Archive finished books or return for another listen. Discover shows in the podcast directory, organize local episodes by show, sort and filter them, and save favorites. Read available transcripts full screen with search, reading themes and playback highlighting. A LIBRARY THAT FITS YOU Browse albums, artists, genres, release dates and folders. Build playlists and smart playlists; use favorites, ratings, comments and listening statistics. Set a song's playback range, or mark it as disliked to skip it in shuffle, automatic continuation and recommendations. Sync favorites with compatible servers and scrobble to Last.fm or ListenBrainz. Import playlist links from Apple Music, Spotify and other services, or playlist files. Entries are matched to your own library; missing songs remain available for later matching. RADIO Search stations, add stream URLs, import or subscribe to station lists, and organize favorites with folders and tags. See live track information when available. SOUND AND FORMATS Enjoy offline downloads, gapless playback, crossfade, ReplayGain, EQ, reverb and dynamics. Choose download quality, save EQ presets and link them to output devices. Play formats including FLAC, ALAC, MP3, AAC, M4B, WAV, AIFF, APE, DSD, Ogg, Opus, WavPack and DTS. Browse CUE album images, open STRM links and watch compatible music videos. Some formats require caching or conversion. LYRICS, VISUALS AND KARAOKE Follow line- and word-synced lyrics, translations and duet parts. Edit tags, artwork and lyric files, including TTML, and save to supported writable formats and sources. Enjoy cover flow, vinyl, starry skies and music-responsive full-screen effects with selectable frame rates. Reduce vocals, change key, practice a line, score your singing or record. Medleys let you sample songs in short clips and return to the full track. On-device AI vocal separation requires iOS/iPadOS 26.4 or later and a model download. SYNC AND DISCOVERY Sync supported library data, favorites, Home layouts and playback preferences with iCloud. Transfer music, lyrics and artwork over your local network. Discover music through library recommendations or optional AI tools for semantic search, translation and audio-to-lyrics. Built-in AI requires your consent; audio transcription uploads audio only when you agree. MADE FOR IPHONE AND IPAD Customize player buttons, menus and backgrounds. Use CarPlay, Siri, widgets, Lock Screen and Dynamic Island lyrics, AirPlay, and Apple Watch controls, queue and lyrics. Share lyric posters as images, videos or Live Photos. Apple Music uses the system player with the required account access. Album pages can include catalog tracks not saved in your library, and search playback can continue with similar music.
Armpit
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.
- Connects to Navidrome server
- Original-quality streaming (FLAC)
- True gapless playback
- 10-band equalizer
- Offline listening
- Cross-device sync
- CarPlay and Apple Watch support
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A regular music player, i'm telling-you. Your music, your rules. Armpit is a fast, native music player for your own server. Connect to Navidrome server and take your entire library everywhere. PLAYBACK THAT RESPECTS YOUR FILES • Original-quality streaming — FLAC and other lossless formats decode natively, no forced transcoding • True gapless playback • 10-band equalizer with presets • ReplayGain volume normalization • Signal path view — see exactly what happens to your audio from source to output • Synced and static lyrics • Per-network streaming quality (Wi-Fi / cellular), from original quality down to 128k YOUR WHOLE LIBRARY • Albums, artists, songs, genres, favorites, playlists • Real smart playlists on Navidrome — rules are evaluated live on your server • Podcasts with cross-device resume — pause on the TV, continue on your phone • Internet radio stations - if enabled in navidrome • Downloads for offline listening • Discover screen with fresh releases, most played, and personal mixes • Listening stats EVERYWHERE YOU LISTEN • iPhone and iPad, with a full desktop app for Mac • Apple TV — full browsing, playback, and a Top Shelf preview of your library right on the home screen • Apple Watch — standalone streaming and downloads • CarPlay • Siri and Shortcuts support SEAMLESS ACROSS DEVICES • Sign in once — iCloud securely syncs your server connection to every device, including Apple TV • Settings, theme, accent color, and search history follow you everywhere • Scrobbling to your server (and Last.fm through it) MADE TO BE LOOKED AT • A flat, instrument-inspired design: hairlines, mono type, one accent color • Light and dark themes, eight accent colors, matching app icons • Available in English, Spanish, German, and French Armpit requires your own Navidrome music server. It streams your personal library — no music is included, and no account with us is needed. Armpit is an independent project by Pierre Ugaz, not affiliated with Navidrome.
Screenshots
Verdict
The clearest difference is update cadence: Primuse at every 4 days against Armpit's fortnightly. Primuse also leads on ratings volume (29 vs 4) and iOS requirement (18.0 vs 26.0). On price, rating, review sentiment and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Primuse against 5.0 for Armpit. That said, the two scores are not equally well evidenced: Primuse has 29 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 95% of Primuse's written reviews are positive against 100% of Armpit's.
Primuse ships an update every 4 days, Armpit fortnightly. The most recent releases landed on October 31, 2026 and October 20, 2026 respectively.
| Parameter | Primuse | Armpit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (29 ratings) | 5.0 (4 ratings) |
| Positive reviews | 94.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 29 — better | 4 |
| Update frequency | Every 4 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac, Apple TV, Apple Watch | iPhone, iPad, Mac, Apple TV, Apple Watch |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 182 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 玉琴 孙 | Pierre Ugaz |
Customer experience
Primuse
Armpit
In-app purchases
Primuse
No in-app purchases
Armpit
No in-app purchases









