Comparison

JellyBox Player vs Flex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JellyBox Player

Access and play your local music library from Jellyfin, Emby, or Navidrome servers. Enjoy features like time-synced lyrics, offline playback, and remote control of your media.

Highlights
  • Browse local music library
  • Remote device control
  • Time-synced lyrics
  • Full offline mode
  • Downloads
  • Apple CarPlay support
Read full description

JellyBox Player is a client application for Jellyfin, Emby or Navidrome servers. JellyBox allows you seamlessly play all your local music by simply connecting to your home server. This player can: * Browse and your local lib - artists, albums, songs, playlists * Continuity - remotely control your devices or move playback between them * Relay - connect remotely to your home server without use of VPN or tailscale tunnels * Home page widget * Show a time synced lyrics(when available) * Full offline mode, including a "plane" support * Downloads * Native Apple CarPlay app

About

Flex

This app allows you to manage and play your personal music library hosted on a Plex Media Server. Enjoy offline playback, customize your queue, and personalize your listening experience with various themes and visualizers.

Highlights
  • Plex Media Server integration
  • Offline music downloads
  • Customizable playback queue
  • Theming and visualizers
  • Smart playlist management
  • Lyrics and artwork display
  • CarPlay and Siri integration
Features
Read full description

Your music library should feel like yours. Flex Music is an independent music player and playlist manager for personal Plex Media Server libraries. Sign in with Plex, choose your server and enjoy your music at home, remotely or offline. BROWSE AND PLAY Explore artists, albums, tracks, playlists, genres and moods. Search inside large playlists, rate tracks back to Plex, and keep browsing while the mini-player plays. Expand Now Playing for artwork, synced lyrics when available, visualizers and the waveform progress bar. YOUR QUEUE, YOUR WAY Use Play Next to put a track first, or Play After Next to add it after your manually queued tracks. Assign these actions to your playlist swipes. Manage Up Next and Previously Played, reorder playlists, add whole albums and clone playlists. OFFLINE AND DATA SAVER Download your music with no paid track limit. Choose storage limits and keep favourites offline. Data saver asks your Plex server to convert audio to your chosen bitrate, with separate Wi-Fi and cellular preferences and measured transferred-data totals. Conversion depends on your server; data saved is compared with the original media size. MADE FOR YOUR SCREEN Choose themes, artwork effects and visualizers. Larger displays have room for the player and queue side by side. iPhone Duo adapts from a compact cover-screen player to a stacked portrait layout and a side-by-side player and queue when opened in landscape. Controls stay clear of the system strip, and your player and queue are retained as the layout changes. Music casting is free on supported receivers. Lyric casting brings available lyrics to Google Cast displays with Flex Music Pro. FLEX MUSIC PRO Free: browsing, playback, Smart Search, ratings, on-device lyrics, music casting, themes and visualizers, offline downloads, the Pinned Playlist widget, and editing playlists up to 100 tracks. Pro unlocks editing larger playlists, saving smart playlists and listening sessions, premium home-screen widgets, alternate app icons, navigation icon themes and styles, and lyric casting. The Apple Watch companion is also included with Pro. CarPlay and Siri playlist playback are free. Monthly, yearly and lifetime plans unlock the same Pro features. Purchases are processed by the App Store and can be restored from Settings. Lifetime is a one-time purchase; subscriptions renew until cancelled in your store account settings. REQUIREMENTS A Plex account and access to a Plex Media Server containing a music library. Network access to that server is required for streaming and library management. Flex Music is independently developed by Elixir Consultancy Services Ltd and is not affiliated with or endorsed by Plex, Inc. Plex is a trademark of Plex, Inc. Google Cast is a trademark of Google LLC. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

JellyBox Player3 screens
Flex4 screens

Verdict

The call

The clearest difference is in-app purchases: JellyBox Player at none against Flex's 3. JellyBox Player also leads on update cadence (every 5 days vs every 2 months) and ratings volume (7 vs 1). Flex's advantage is rating (5.0 vs 4.7). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flex sells 3 in-app purchases, starting at $0.99 per month. JellyBox Player asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flex holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: JellyBox Player has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

JellyBox Player ships an update every 5 days, Flex every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
JellyBox Player versus Flex: the parameters behind the verdict, then further details
ParameterJellyBox PlayerFlex
PriceFreeFree
Rating4.7 (7 ratings)5.0 (1 ratings) — better
Positive reviews43.8% of reviews—
Number of ratings7 — better1
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, MaciPhone, iPad, Apple Watch
Requires iOS17.4 — better18.0
Further details — not scored
Size49 MB132 MB
Age rating4+4+
DeveloperOleksandr SynelnykovElixir CS

Customer experience

JellyBox Player

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews16 reviews
Positive43.8%
Neutral25.0%
Negative31.3%

Flex

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

JellyBox Player

No in-app purchases

3 purchases

Flex

Subscriptions2
  • Flex Music Pro Monthly$0.991 Month
  • Flex Music Pro Yearly$9.991 Year
One-time1
  • Flex Music Pro Lifetime$19.99

Questions

Is JellyBox Player free?
JellyBox Player is free to download, with no in-app purchases.
Is Flex free?
Flex is free to download, with in-app purchases available.
Which has better reviews, JellyBox Player or Flex?
Flex is rated higher. JellyBox Player averages 4.7 out of 5 from 7 ratings, while Flex averages 5.0 from 1 ratings.
Do JellyBox Player or Flex have ads?
Neither JellyBox Player nor Flex shows ads.
Which is updated more often, JellyBox Player or Flex?
JellyBox Player ships an update every 5 days, and Flex every 2 months. Most recently, JellyBox Player was updated on November 3, 2026 and Flex on October 31, 2026.

Other comparisons