Download the Synco App
Get the free Synco tool for Android and desktop. Open-source sync app with Bluetooth support, available on GitHub.
What's Included in Synco v1.0.0
Synco is distributed free and open source. Both parts work together over your local network — no cloud, no accounts, no subscriptions.
Synco Android App (APK)
- Android 8.0+ (API 26+), no root required
- Mirrors notifications from WhatsApp, Slack, SMS, and any app you choose
- Shows incoming calls with caller ID, and handles media play/pause/skip
- Foreground service stays connected via local Wi-Fi or Bluetooth LE
Synco Desktop Tool (Source)
- Runs on Windows, macOS, and Linux — built from the GitHub source
- Listens on port 8765, generates a one-time PIN for secure pairing
- Includes a web dashboard at localhost:8080 to monitor connections
- All traffic is end-to-end encrypted (X25519 + AES-256-GCM) and stays on your LAN
Quick Setup After Downloading
- Start the desktop tool. Clone the repo, then run the install command shown on the GitHub page. The terminal will display a PIN code and the port number (8765). Keep this window open.
- Install and open the Synco app on your Android phone. Grant notification access, Phone permission, and Nearby devices permission when prompted. Disable battery optimization for Synco so Android does not kill the background service.
- Pair the devices.Make sure both devices are on the same Wi-Fi network (or connect your desktop to the phone's hotspot). Enter your desktop's IP address and the PIN code in the Synco app. Notifications, calls, and media controls begin syncing immediately over the encrypted session.
System Requirements
Android
- Android 8.0 (Oreo) or newer
- Wi-Fi adapter (any Android phone/tablet)
- ~60 MB free storage for the APK
Desktop
- Java 17+ (JDK) installed
- Git, to clone the Synco repository
- Wi-Fi or Ethernet on the same LAN as your phone
Synco works entirely offline after the initial download. It is a privacy-first alternative to AirDroid for Android notification mirroring, this side of scrcpy for control without USB cables, and a complement to Syncthing users who also want real-time call and media sync.
Frequently Asked Questions
Is Synco really free?
Yes. Synco is 100% free and open source with no subscriptions, no premium tiers, and no in-app purchases. It always will be.
Does Synco work offline?
Synco works entirely over your local network (Wi-Fi, hotspot, or Bluetooth LE). After the initial download there is zero cloud dependency — your data never leaves your LAN.
Which operating systems are supported?
Android 8.0+ on the phone, and Windows, macOS, or Linux on the desktop (Java 17+ required). There is no iOS client yet.
Do I need root access or a Google account?
No root required, and no account of any kind. Permissions like notification access and nearby devices are granted through standard Android settings.
Is my connection encrypted?
Every session uses end-to-end encryption (X25519 key exchange + AES-256-GCM) with a one-time PIN. The connection stays on your local network.
How does Synco compare to AirDroid or scrcpy?
Unlike AirDroid (proprietary and cloud-based), Synco is free, open source, and fully offline. Unlike scrcpy (USB screen mirroring), Synco focuses on background notification, call, and media sync over Bluetooth or Wi-Fi.
Need help with setup?
New to Synco? Read the full setup guide for Android notification mirroring, Bluetooth sync, wireless file transfer, and call handling — or explore the source code.