FolderCast · Local-first folder player
Folder-first. Zero tags.

Your folder tree, exactly on iPhone.

Sync your PC's music folders over Wi‑Fi. No conversion, no tag rewrites. Just play.

The friction

Tagless libraries shouldn't break mobile

Your 100GB+ collection is organized by path, not ID3. Syncing it to a phone shouldn't demand a weekend of metadata surgery.

Tag conversion hell

Hours lost remapping folder structures into ID3 fields. Every subfolder becomes a new headache.

Slow desktop syncs

Legacy tools rescan entire drives, stalling on huge libraries. Delta updates are a distant dream.

Ugly FTP clients

Barebones list views, no gapless playback, interfaces stuck in 2005. Painful for daily listening.

Folder hierarchy lost

Default sync software flattens your custom paths, forcing a messy tag-based browse.

/ solution

Play folders, not playlists

FolderCast mirrors your directory tree on iOS. No conversion, no tags, no middlemen.

Exact tree mirror

Your PC's folder hierarchy appears on iPhone, folder for folder. Subfolder depth preserved.

One-tap delta sync

Only changed files transfer over Wi‑Fi. Sub‑second scan, no full rescans.

Gapless FLAC & MP3

Local playback with gapless transitions. High‑res audio, silent on tags.

Key features

Built for the way you store music

LAN auto-discovery

Desktop helper and iPhone find each other instantly on the same network. No IP hunting, no manual setup.

Exact tree mirror

Folder for folder. Your music library structure survives the move to mobile.

One-tap delta sync

Fetch only what changed. Fast, efficient, no full library re‑scan.

Gapless playback

Seamless transitions between tracks. FLAC and MP3, no gaps.

Dark directory browser

Clean, modern UI built around filesystem trees. Eye‑friendly dark mode for late listening.

Trusted by data hoarders & audiophiles

r/datahoarder r/musichoarder r/selfhosted r/audiophile r/plex
100GB+ libraries synced
0 tags required
2.4× faster than FTP
/ workflow

From PC to pocket in three steps

1

Install desktop helper

Lightweight app for Windows/Linux. Sits in tray, watches your folders.

2

Pair over Wi‑Fi

iPhone auto‑discovers your server. One‑tap connection, no IP fiddling.

3

Sync & play

Tap to delta‑sync folders. Stream or cache locally. Gapless, tagless.

Pricing

Simple, collector-friendly

Core

Manual local sync

0€ / forever
  • Folder tree mirror
  • Manual Wi‑Fi delta sync
  • Gapless FLAC/MP3
  • Dark mode
Start free
Most popular

Pro

For serious hoarders

2.99€ / month
  • Automated background sync
  • Custom themes
  • Batch file handling
  • Everything in Core
Get Pro

Lifetime

Pay once, own it

29€ / one‑time
  • All Pro features
  • Future Pro updates
  • Supporter badge
Go lifetime

Your folder tree deserves better

Join the waitlist for early TestFlight access. No tags, no hassle.

TestFlight invites going out weekly. No spam, ever.

/ faq

Questions, answered

Does this require ID3 tags? +

No. FolderCast indexes purely by path. Your existing folder structure is the library. Zero metadata work.

How does the delta sync work? +

The desktop helper watches your folders. On sync, only new or changed files transfer over Wi‑Fi. Full scans are a thing of the past.

Which file formats are supported? +

Gapless FLAC and MP3 playback at launch. More formats like ALAC and Opus are on the roadmap.

Is it truly local? +

Yes. Everything stays on your LAN. No cloud, no third‑party servers. Your music never leaves your network.

What about huge libraries? +

Built for 100GB+ collections. The delta sync and lightweight browser handle thousands of folders without lag.

Directory-First Local Sync Player | Startup Blueprint