Swift Radio

Open-source iOS radio app with a SwiftUI interface. Used by 80+ apps on the App Store.

Looking for Android? See Swift Radio Android. Same station format, native Kotlin and Jetpack Compose.

Features

• Stream live radio with background audio playback
• Scrubber and progress bar for non-live streams
• Apple CarPlay support
• Album art and track metadata from streams and iTunes API
• Lock screen and Control Center integration
• Multiple stations from a local or remote JSON file
• Pull to refresh and optional search bar
• Localization-ready via Xcode String Catalog
• About screen with email, sharing, and external links

Built on FRadioPlayer for streaming, metadata parsing, and iTunes album art fetching.

Requirements

• iOS 17 or later: the deployment target of the app target, the CarPlay target, and the SwiftRadioCore package.
• Xcode 26.6 or later: CI builds the app and CarPlay targets with Xcode 26.6 and 27.0. The test suites are run with Xcode 27.
• Swift 6 language mode for the app targets and SwiftRadioCore, with complete concurrency checking.

Dependencies resolve through Swift Package Manager, so there's nothing to install before the first build.

Getting Started

1. Open SwiftRadio.xcodeproj in Xcode
2. Edit SwiftRadio/Config/Config.swift to set your stations URL, contact email, website, and other app-wide settings
3. Update your stations in SwiftRadio/Data/stations.json or host the file remotely
4. Build and run

Adding a station

1. Add an entry to SwiftRadio/Data/stations.json, or to the JSON you host at Config.stationsURL
2. Add a square image to SwiftRadio/Images.xcassets/Stations/ and name the image set exactly like the station's imageURL
3. Build and run: no code change is needed

Each station supports these fields:

{
  "name": "Station Name",
  "streamURL": "https://stream.example.com/live",
  "imageURL": "station-image",
  "desc": "Short tagline",
  "longDesc": "Longer description for the detail screen",
  "website": "https://example.com"
}

• imageURL: an asset name for a bundled image, a full http(s) URL for a remote one, or an empty string to fall back to the stationImage placeholder.
• website: optional. The "Visit Website" row and the popup's website option appear only when it starts with http or https.
• longDesc: optional. Omit the key or leave it empty and the station info screen shows a default description.

Forking for one station

The template works at any catalog size, so a single-station app is mostly configuration:

• Trim the catalog: leave one entry in stations.json and keep Config.useLocalStations = true.
• Drop the controls it doesn't need: set Config.hideNextPreviousButtons = true and leave Config.searchable = false.
• Open on the player: call StationsStore.select(_:) once the catalog loads and set RootView's popupOpen to true. The one-row list stays behind the player as the back destination.
• Rebrand: replace logo and the station image in Images.xcassets, then edit the strings in Localizable.xcstrings.

Customizing text and translation

All user-facing strings are managed through Localizable.xcstrings (the String Catalog). Open it in Xcode to change the default English text or add new languages. Most views read their strings through Content.swift; a few accessibility labels in the player and toolbar use their catalog keys directly (player.next, player.seek, common.close and similar). Either way the text lives in the catalog, so a translation needs no code change.

Architecture

SwiftUI owns the app's screens and navigation. AppEnvironment creates shared services for the phone and CarPlay, so both interfaces use the same station selection and playback state.

SwiftRadioCore is a local Swift package that separates playback, station catalogs, artwork and system-media integration from presentation. Its dependency boundaries let us test playback and catalog behavior without launching the UI. Small UIKit adapters remain for the popup player, marquee text, indicators and system presentations.

See the SwiftRadioCore guide for service boundaries and the architecture guide for the source map, popup flow and system controls.

Testing

Run the core tests from Packages/SwiftRadioCore using the package guide. They cover playback, catalog refresh, remote commands, Now Playing and interruptions without live streams.

The visual parity protocol covers screenshots, accessibility and UI regression commands. CI also builds both app targets and validates an unsigned archive. Physical-device audio routes, lock-screen controls and CarPlay remain separate acceptance checks.

Dependencies

Swift Package Manager manages these libraries. LNPopupUI also brings in LNPopupController, LNSwiftUIUtils and, through LNPopupController, LNSystemMarqueeLabel. SwiftRadioCore is included in this repository as a local package. The checked-in lockfiles record the exact resolved versions.

Contributing

Contributions are welcome. Please branch off dev and open a pull request. Do not commit directly to master.

Single Station Version

Looking for a simpler, single-station version? It skips the station list and launches straight into the player. One purchase now includes both the iOS and Android single-station projects.

All proceeds go directly toward maintaining and improving Swift Radio.

For custom work or more advanced needs, reach out to Fethi.

Built something with Swift Radio? We'd love to see it. Drop us a line at [email protected].

Credits

• Fethi, co-organizer and lead developer
• Matthew Fecher, creator, AudioKit Pro
• All contributors

License

Swift Radio is open source and available under the MIT License.