# Retro vs Flex

The clearest difference is update cadence: Retro at every 3 weeks against Flex's every 2 months. Flex's advantage is device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Retro sells 2 one-off in-app purchases and Flex sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Retro against 5.0 for Flex. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

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

## The numbers

| Metric | Retro | Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/retro-amp/id6762493613/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/flex-music-player/id6795259400/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 5 MB | 132 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [KIYOUMI AGEMURA](https://appshunter.io/developer/1889500239) | [Elixir CS](https://appshunter.io/developer/6795259402) |

## What reviewers say

### Retro

[App page](https://appshunter.io/ios/app/retro-amp/id6762493613)

Relive the golden age of music players with this app that mimics early 2000s desktop interfaces. Enjoy your local music library with advanced playback features, customizable themes, and CarPlay support.

**Highlights:** Classic UI with pixel-art and scrolling titles, CarPlay support for in-car listening, Home Screen Widget for quick access, Lossless, gapless local playback engine, 10-band graphic equalizer, Hi-Res audio output support, Synced lyrics (LRCLIB) integration, Last.fm scrobbling

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lite Skin Pack | $0.99 | one-time |
| Pro Skin Pack | $4.99 | one-time |


### Flex

[App page](https://appshunter.io/ios/app/flex-music-player/id6795259400)

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:** macOS Compatibility, Family Sharing, Siri integration, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flex Music Pro Monthly | $0.99 | per month |
| Flex Music Pro Yearly | $9.99 | per year |
| Flex Music Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Retro free?

Retro is free to download, with in-app purchases available.

### Is Flex free?

Flex is free to download, with in-app purchases available.

### Which has better reviews, Retro or Flex?

Retro and Flex are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Retro or Flex have ads?

Neither Retro nor Flex shows ads.

### Which is updated more often, Retro or Flex?

Retro ships an update every 3 weeks, and Flex every 2 months. Most recently, Retro was updated on November 5, 2026 and Flex on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*