amir 66d28761a8 v1.0.31: fix remaining sync loop triggers + icon redesign
Three additional fixes found via live device logs:

1. Startup race window: FileObserver fires immediately after
   startWatching() before catchupScan coroutine runs, starting a 5s
   debounce with cooldown=0. Fixed by setting a 15s startup cooldown
   in watchPath() BEFORE calling watchDirRecursive.

2. Stale debounce bypass: debounce job started with cooldown=0 fires
   5s later even after catchupScan has already set cooldown and started
   a catchup sync. Fixed by re-checking cooldown after the 5s delay
   and aborting if already active.

3. Debounce not cancelled by catchupScan: if a debounce was queued
   before catchupScan ran, catchupScan would enqueue a catchup sync
   AND the old debounce would fire 5s later enqueuing a second sync.
   Fixed by cancelling pending debounce in catchupScan before enqueue.

Icon: four thick arcs (blue/red/green/orange) in a 4-way pinwheel
with over/under ordering. White sync-arrow circle at center.
Pure black background.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-25 14:06:19 +00:00

SyncFlow

Native Android file sync app — sync any folder to WebDAV, SFTP, Nextcloud, ownCloud, Google Drive, Dropbox, or OneDrive.

Features

  • Multi-provider — WebDAV, SFTP, SFTPGo, Nextcloud, ownCloud, Google Drive, Dropbox, OneDrive
  • Flexible sync — one-way upload, one-way download, or two-way mirror
  • Auto-sync — schedule by interval or trigger on Wi-Fi connect / device charge
  • Conflict resolution — keep local, keep remote, keep newer, or keep both
  • Secure — credentials encrypted with Android Keystore; biometric app-lock option
  • No cloud dependency — runs fully on-device, no third-party relay

Install

  1. Download SyncFlow.apk from the latest release
  2. On your Android phone: Settings → Apps → Install unknown apps → allow your browser/file manager
  3. Open the downloaded APK and tap Install
  4. Open SyncFlow, go to Accounts tab → Add Account, pick your provider and sign in
  5. Tap + on the Syncs tab to create your first sync pair

Supported Providers

Provider Auth
WebDAV Username + password
SFTP Password or private key
SFTPGo Username + password
Nextcloud Username + password
ownCloud Username + password
Google Drive OAuth 2.0 (PKCE)
Dropbox OAuth 2.0 (PKCE)
OneDrive OAuth 2.0 (PKCE)

Requirements

  • Android 8.0+ (API 26)
  • Storage permission (or SAF picker) for local folder access
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