Best 4Sync Apps

Resilio Sync

File transfer and photo backup

Free

Securely transfer files and back up photos between your devices without using third-party servers. Enjoy unlimited storage and speed, with direct peer-to-peer transfers for privacy and efficiency. Supports all file types across various platforms.

Fitbit Health Sync

by Praveen Murugesan

Free

This utility app securely connects your Fitbit account to Apple Health, syncing vital health metrics like weight, steps, and sleep. Keep your health profile updated across your iPhone and other fitness applications with ease.

SyncML PRO 4

SyncML for Calendar+Contacts

$11.99

This app facilitates synchronization of contacts and calendars using the SyncML standard. It is designed for users who require this specific legacy technology, often in organizational settings, and need to connect to a SyncML-compliant server. It offers calendar views and enhanced contact group management.

Sync for DJI: Go Mobile First

H265, 4K, RAW, hyperlapse, etc

Free

Easily download, trim, and share media from your DJI drone directly to your phone. Supports 4K, H.265, and RAW files, with background downloading and advanced editing features like hyperlapse creation and panorama stitching.

MOV to MP4: Correct Audio Sync

No More Out of Sync Videos!

Free

$0.29 | 100% OFF

Fix videos with out-of-sync audio before sharing them on social media. Simply select your video, convert it to automatically sync the audio, and share your perfectly synchronized clips.

DoubleVision - Sync Screen with Computer & other iPhones in Realtime

by DoubleVision Labs

Free

Seamlessly mirror content from your computer or other iOS devices to your iPhone or iPad in real-time. Share links, videos, apps, and more, even across different locations. Offers direct screen sharing with friends via Facebook Chat.

Radio Wave Sync

Sync Radio Controlled Watch

Free

This app helps synchronize radio-controlled watches by simulating time signal waves. It supports various international time signal standards and offers a 'Beast Mode' for faster synchronization. Simply place your watch near your device's speaker and start the process.

Sync for DJI Osmo. Download 4K

for Osmo Pocket, Osmo Action

Free

Easily download, manage, and edit 4K video and photos from your Osmo Pocket and Action cameras directly on your iPhone or iPad. Trim footage, apply color presets, and share your creations instantly without needing a computer.

Boogie Board Sync

by Kent Displays, Inc.

Free

This app connects to a specialized writing tablet via Bluetooth to help you organize, edit, and share your notes and drawings. It allows for real-time sharing and synchronization with cloud services, and you can even create content directly within the app.

SYNCING.NET - Sync P2P Private

by ASBYTE GmbH

Free

This app offers real-time, automatic file synchronization across multiple devices without a dedicated server. It securely syncs documents, contacts, and calendars, providing a cloudless solution for individuals and businesses. A free version is available with limitations, while a business edition offers enhanced features and unlimited data.

Music to Watch

Sync your sound to your Watch

Free

Import your audio files and create custom playlists to sync with your Apple Watch for offline listening. Enjoy seamless, gapless playback for mixes and albums, with clear feedback on sync status.

Sync for FitBit Health

by Cloforce LLC

Free

This app automatically syncs your Fitbit data to Apple's Health app. View all your fitness and health information in one place, including steps, sleep, and weight. Customize which data fields you want to transfer.