For iPhone owners who love high-fidelity sound, Apple Music and Apple Podcasts offer an unmatched audio ecosystem. Yet when checking your iPhone Storage breakdown in iOS Settings, it is alarmingly frequent to discover that clearing Apple Music and Podcasts cache and downloaded files is needed to reclaim 15, 25, or even 40 GB of flash memory. Many users are bewildered to find that their music library takes up more physical space than all of their other apps combined.
Executive Summary & Research Finding
Apple Music and Podcasts taking up 20+ GB? Learn how to clear Apple Music cache, remove downloaded songs, and disable auto-downloads on iPhone easily.
The primary catalyst behind this extreme storage inflation is Apple's push toward uncompressed, audiophile-grade media formats. With Apple Lossless Audio Codec (ALAC) providing up to 24-bit/192 kHz Hi-Res Lossless streams and spatial audio encoded in Dolby Atmos, an individual music track can be five to ten times heavier than a legacy MP3. Add to that Apple Podcasts' aggressive automatic background download engine, which silently downloads dozens of 100 MB talk show episodes every week, and your phone storage is quickly pushed to the brink.
Audio Format Storage Math: High Quality vs Lossless vs Hi-Res
To understand why your music collection grew so rapidly, compare how much storage space a 3-minute song occupies across Apple Music's various audio quality settings:
| Audio Format Setting | Bitrate / Resolution | File Size (1 Song) | Storage for 1,000 Songs | Can Human Ears Tell on AirPods? |
|---|---|---|---|---|
| High Efficiency (HE-AAC) | 64 kbps compressed | ~1.5 MB | ~1.5 GB | Good for spoken word or mobile data savings |
| High Quality (AAC) | 256 kbps standard | ~6.0 MB | ~6.0 GB (Sweet Spot) | Transparent quality on all Bluetooth devices |
| Lossless Audio (ALAC) | Up to 24-bit / 48 kHz | ~36.0 MB (6x heavier) | ~36.0 GB | No (Bluetooth compression re-encodes it) |
| Hi-Res Lossless (ALAC) | Up to 24-bit / 192 kHz | ~145.0 MB (24x heavier) | ~145.0 GB (Gigantic) | Requires external wired DAC and studio monitors |
| Dolby Atmos Spatial Audio | Multi-channel audio stems | ~18.0 MB – 25.0 MB | ~20.0 GB | Immersive spatial soundstage |
How to Clear Apple Music Cache & Downloaded Songs on iPhone
Apple provides multiple native tools within iOS to prune downloaded tracks without deleting them from your iCloud Music Library or personal playlists:
- Open Settings on your iPhone > scroll down and tap Music.
- Under the Downloads header, tap Downloaded Music.
- You will see an 'All Songs' entry at the top, followed by a list of artists sorted by storage size.
- To delete all downloaded music at once: swipe left on All Songs and tap Delete.
- To prune selectively: tap on a specific artist or album, swipe left on songs you rarely play offline, and tap Delete.
- Important: Deleting downloaded tracks removes the offline audio files from your iPhone, but every song remains saved in your library and can be streamed or re-downloaded at any time.
How to Enable Apple's 'Optimize Storage' Feature
One of iOS's best-kept secrets is automated music storage optimization. Once enabled, iOS will automatically manage your music library so it never exceeds your specified limit:
- Go to Settings > Music.
- Scroll down and tap Optimize Storage.
- Toggle Optimize Storage to ON.
- Choose a minimum storage tier (e.g., 16 GB, 32 GB, or 64 GB).
- When your iPhone runs low on space, iOS will automatically remove downloaded songs that you have not listened to recently while preserving your favorite, frequently played tracks.
How to Stop Apple Podcasts from Devouring Storage
Apple Podcasts is frequently more destructive to storage than Apple Music because video podcasts and daily news briefings can quietly download gigabytes of media in the background:
- Open Settings > Podcasts.
- Under Episode Downloads, tap Automatically Download and choose Off or set a strict cap such as Latest 3 Episodes per Show.
- Turn ON Remove Played Downloads so that finished episodes are instantly deleted 24 hours after completion.
- To clear existing episode hoards: open the Podcasts app > tap Library > Downloaded > tap the three dots in the top right > tap Remove All Downloads.
AirPods Bluetooth Reality Check
Apple's Bluetooth connection on AirPods (including AirPods Pro and AirPods Max) uses the AAC codec capped at 256 kbps. Downloading songs in 'Hi-Res Lossless' format wastes massive flash storage because Bluetooth physically cannot transmit lossless streams without downsampling. Switch your download format back to High Quality (AAC) in Settings > Music > Audio Quality.
Complete Smartphone Storage Optimization
Purging 30 GB of lossless audio and obsolete podcast episodes brings immediate relief to an overburdened device. But audio files are only one part of the digital equation. If your phone still shows low memory warnings, consult our comprehensive guide on how to clear hidden iPhone System Data.
To keep your device operating at peak performance without manual maintenance, try Clearly Smart Storage Cleaner. Its intelligent diagnostic engine effortlessly scans for redundant video files, duplicate images, and hidden system bloat, allowing you to free up storage and clean phone memory with a single tap.
