Not That Random vs Flex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Not That Random
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Not That Random revolutionizes your music experience by offering intuitive organization tools for your song collection through dynamic playlists in the form of custom TrackLists. Enhance your music experience with dynamic custom TrackLists that automatically adapt to your music library, eliminating the need for manual updates commonly associated with traditional playlists. Take full control of your music library with intuitive editing options and enjoy custom TrackLists tailored for every mood and occasion, free from limitations. Organize your songs with precision using customizable date filters, preset periods, multiple genre and artist filters, date ranges, and more. Please note that this app requires a valid and active Apple Music subscription for integration and access to music resources. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Flex
This app is a music player and playlist manager for personal Plex Media Server libraries. It allows offline playback, advanced playlist editing, and offers features like scrolling lyrics, visualizers, and CarPlay support. Personalize your music experience with customizable interfaces and hands-free Siri integration.
- Plex Media Server integration
- Offline music playback
- Advanced playlist editing
- Scrolling lyrics with sync
- Visualizer styles
- CarPlay support
- Customizable interface
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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, pick your server, and your music is there — at home, in the car, on your wrist, and offline. No Plex Pass required. BUILT AND TESTED FOR BIG PLAYLISTS Forget the endless scrolling. A song pops into your head, you type a few letters, and there it is — search works inside a playlist, not just across your library. Then reorder by drag, or swipe a track straight to the top, the middle, a random spot, or the bottom, and map each of the four swipe slots to whichever action you use most. Add whole albums. Add what's playing. Clone a playlist and tidy up the copy. All of it tested on playlists of more than 17,000 tracks. A PLAYER WORTH LOOKING AT - Lyrics that scroll with the song, full screen, in four sizes. If they drift, tap the line you're actually hearing and they snap back into sync. The screen stays on while they're up. Pulled from your server, with an automatic LRCLIB fallback when it has none - Six visualizer styles that move to the track's own decoded audio once it has been analysed, and ambient motion until then - An optional waveform progress bar drawn from the song's own loudness - Colors pulled from the album art, and seven themes including true black - Star ratings saved straight back to Plex OFFLINE, PROPERLY Download a playlist and it keeps playing on your iPhone when the server is unreachable. Set a storage cap and Flex clears out whatever you play least, or turn on Keep favourites offline and it downloads your most-played tracks for you — over Wi-Fi only, if you prefer. IN THE CAR CarPlay is included, free. Browse your playlists, albums and recent listening on the head unit, with artwork, and rate the playing track without touching your phone. ON YOUR WRIST The Apple Watch app is part of Flex Music Pro. Start a playlist, see what's playing with its artwork, rate a track, browse what's coming up next, and use the Digital Crown as the volume. The iPhone does the playing; the watch is the remote. HANDS FREE Ask Siri to play a playlist by name and Flex Music starts it. MADE FOR YOUR SCREEN iPhone and iPad, with a side-by-side queue and lyrics on larger displays. Background playback with the iOS lock screen and Control Centre. YOURS, AND ONLY YOURS Rearrange or hide almost anything — the six home rails, the navigation bar, track numbers, the swipe actions, the lyric size. No ads. Your credentials are stored locally and are never sent to our servers, and Flex Music has no account and no advertising profile of its own. FLEX MUSIC PRO Free, always: browsing, playback, search, ratings, lyrics, every theme and visualizer, editing playlists of up to 100 tracks, and downloading up to 100 tracks at a time. Flex Music Pro unlocks editing playlists over 100 tracks, downloading more than 100 tracks in one go — including choosing an exact number — keeping more than 100 favourites offline, and the Apple Watch app. Buy it once, or take a monthly or yearly pass; all three give the same access. Purchases are processed by the App Store and can be restored from Settings. REQUIREMENTS - A Plex account - Access to a Plex Media Server containing a music library - Network access to that server for streaming and library management Flex Music is an independent app developed by Elixir Consultancy Services Ltd. Flex Music is not affiliated with, endorsed by, or sponsored by Plex, Inc. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is device support: Flex at 4 against Not That Random's 1. Flex also leads on iOS requirement (15.0 vs 17.0). On price, 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. Not That Random sells 3 in-app purchases, starting at $0.99 per month and Flex sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Not That Random | Flex |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Ricardo Brancaglion | Elixir CS |
In-app purchases
Not That Random
- Pro + (Monthly)7 Days trial$0.991 Month
- Pro (Quarterly)$1.993 Months
- Pro Lifetime$5.99
Flex
- Flex Music Pro Monthly$1.991 Month
- Flex Music Pro Yearly$19.991 Year
- Flex Music Pro Lifetime$49.99









