Why Sync App Pro?
A complete rewrite of the Electron-based Sync App — now 100% native Swift/SwiftUI for Apple Silicon. No web runtime, no bundled binaries, just a clean native app that launches instantly.
- ~5 MB app bundle — down from ~250 MB in the Electron version
- Instant launch — no Chromium startup overhead
- Liquid Glass UI — native macOS 26 glass design throughout
- Watch mode — automatically syncs when source folder changes
- SHA-256 verification — opt-in checksum comparison after sync
- FileManager sync — no rsync dependency, pure Swift
- Mac App Store ready — full App Sandbox, security-scoped bookmarks
- Export/Import settings — backup and restore all profiles and preferences
✨ Core Features
🔄 Incremental Sync Engine
- • Copies only new and changed files via FileManager
- • Hidden and dot-files included by default
- • Per-file error handling — one bad file won't abort the run
👁️ Watch Mode
- • FSEvents watcher with 5-second debounce
- • Rapid changes batch into a single sync run
- • Blue dot indicator when active
🔒 SHA-256 Verification
- • Opt-in checksum comparison after every sync
- • Failures surfaced in progress, log, and notifications
- • Verifying phase in progress display
🪟 Liquid Glass UI
- • macOS 26 native glass design on all surfaces
- • Glass modals, buttons, inputs, and panels
- • Frosted material for consistent readability
💾Profiles & Exclusions
- • Save named source/destination pairs with options
- • Per-profile exclusion patterns with toggle persistence
- • Duplicate name validation with inline feedback
📅 Scheduling
- • Hourly, daily, and weekly automated syncs
- • Minute-level precision for daily/weekly schedules
- • Security-scoped bookmarks for unattended runs
📦Export & Import
- • Export all profiles, exclusions, and schedule to JSON
- • Import with confirmation dialog and profile count
- • Accessible from header and tray icon
📊History & Notifications
- • Full run history with file counts, sizes, and duration
- • Push notifications on completion, cancel, or failure
- • Menu bar tray with last sync status and tooltip
⚡ Electron vs Native Swift
Sync App Pro is a ground-up rewrite — same backup workflow, completely different foundation. Here's how the two compare:
| Sync App (Electron) | Sync App Pro (Swift) | |
|---|---|---|
| Runtime | Chromium + Node.js | Native SwiftUI |
| Sync engine | Bundled rsync binary | FileManager |
| App bundle | ~250 MB | ~5 MB |
| Launch time | 2–4 seconds | Instant |
| UI framework | Electron/CSS | macOS 26 Liquid Glass |
| Mac App Store | v3.0.0 | v1.0.0 |
| Security-scoped bookmarks | None | Full implementation |
🚀 From Code to Release: A DevOps Approach
Just like the original Sync App, every release follows a repeatable CI/CD pipeline — tag a version, GitHub Actions builds and signs the app, and artifacts land on the Releases page automatically.
The Release Routine
# 1) Develop and test in Xcode ⌘R # 2) Push code to main git push origin main # 3) Tag the version (triggers CI/CD) git tag v2.0.0 git push origin v2.0.0 # 4) GitHub Actions builds on macOS 26 runner # 5) DMG/ZIP attached to GitHub Release # 6) Users download from Releases page
Why This Matters
Repeatable
Every release follows the same process — no manual steps, no surprises.
Traceable
Every binary maps to an exact commit and tag — full audit trail.
Native Build
Built on macOS 26 runners with Xcode 26 — native arm64 binaries, no cross-compilation.
App Store Ready
Full App Sandbox entitlements and hardened runtime from day one.
🛠️ Tech Stack
Runtime & UI
- • Swift (application logic)
- • SwiftUI (declarative UI)
- • macOS 26 Liquid Glass design system
Build & Release
- • Xcode 26 (build & archive)
- • GitHub Actions (CI/CD on macOS 26 runner)
- • App Sandbox + hardened runtime
Sync Engine
FileManager incremental comparison — no rsync, no bundled binaries. Copies only new and changed files using native Swift APIs.
📋 Requirements
- ✓macOS 26.0 or later
- ✓Apple Silicon (arm64) — native performance on M-series Macs
- ✓No external dependencies — everything is built in
Ready for native-speed backups?
Download Sync App ProFree and open source • Coming soon to the Mac App Store