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FolderSync
Aarhus, Denmark
What it is
FolderSync synchronizes folders between a device and cloud providers or file servers, and can also synchronize two folders on the same device. It offers one-way mirroring and two-way sync, plus transfers between remote locations using an Android device or desktop computer as a temporary intermediary. Supported services include Google Drive, Dropbox, OneDrive, Box and Nextcloud; protocols include FTP, SFTP, SMB, S3-compatible storage and WebDAV. Its V2 engine supports cloud-to-cloud transfers, encryption, pre-sync change analysis, parallel transfers and Cron-based scheduling. FolderSync also documents Tasker integration and configurable automation events. Encryption protects file names and contents before upload, but only works with one-way sync; a lost encryption password cannot be recovered. FolderSync says account, folder-pair and sync-log information is stored locally, while files go directly to the configured service or server. A free plan is available: the Android app includes ads, and desktop use is free but lacks automation and webhooks. Android requires version 8.0 or newer; desktop support covers Windows, macOS and Linux.
For and against
For
- Supports one-way and two-way synchronization
- Connects to cloud services and file-server protocols
- V2 offers pre-sync change analysis and scheduling
- Free plan is available
Against
- Encryption works only with one-way sync
- Lost encryption passwords cannot be recovered
- Android app includes ads
- Desktop free use lacks automation and webhooks
The verdict
FolderSync covers local, cloud and server folder synchronization, with scheduling and encryption options. Note its one-way encryption restriction and the free plan’s platform-specific limitations.
Who it suits
FolderSync may suit users who want to automate folder transfers between devices, cloud services or file servers. Its supported platforms include Android, Windows, macOS and Linux.
Plans and prices
FolderSync
Android app with ads · Premium in-app purchase removes ads and adds webhooks and automation
Read 15 Oct 2026 · foldersync.io
FolderSync Pro
Paid Android app · no ads · webhooks and automation
Read 15 Oct 2026 · play.google.com
Free
Android free app includes ads · Desktop can be used free, but automation and webhooks are unavailable
Read 30 Sep 2026 · foldersync.io
On the record
- Android requirements
- The Android app requires Android 8.0 or newer; Android TV, Android Auto and Chromebook are not officially supported.foldersync.io · read 15 Oct 2026
- Automation
- Tasker and similar automation tools can trigger finely controlled synchronization jobs.play.google.com · read 15 Oct 2026
- Backup limitation
- FolderSync does not retain deleted files or older overwritten versions, so it cannot restore historical versions.foldersync.io · read 15 Oct 2026
- Checksums
- Checksum support varies by provider; documented examples include SHA1 for Box and OneDrive and MD5 for Google Drive, Google Cloud Storage and Yandex Disk.foldersync.io · read 15 Oct 2026
- CLI
- The foldersync-cli utility can start or stop syncs, show logs and status, control schedules, list folder pairs, and encrypt or decrypt files.foldersync.io · read 15 Oct 2026
- CLI prerequisite
- The desktop application must be installed and running for the CLI to work.foldersync.io · read 15 Oct 2026
- Cloud integrations
- Documented cloud services include Amazon S3, Box, CloudMe, Drime Drive, Dropbox, Filen, Google Drive, Google Cloud Storage, HiDrive, kDrive, Koofr, MEGA, MinIO, Nextcloud, OneDrive, ownCloud, pCloud, Proton Drive, Storegate, SugarSync, WEB.DE and Yandex Disk.foldersync.io · read 15 Oct 2026
- Cloud to cloud
- It can sync two remote locations, using the installed Android device or desktop computer as an intermediary that temporarily stores transferred files.foldersync.io · read 30 Sep 2026
- Company founded
- LinkedIn lists the company as founded in 2013.dk.linkedin.com · read 15 Oct 2026
- Company headquarters
- LinkedIn lists Tacit Dynamics Aps headquarters in Århus, Denmark.dk.linkedin.com · read 15 Oct 2026
- Company legal name
- Google Play identifies the developer as Tacit Dynamics ApS.play.google.com · read 15 Oct 2026
- Company ownership
- LinkedIn describes Tacit Dynamics Aps as a privately held information-technology company.dk.linkedin.com · read 15 Oct 2026
- Company size
- LinkedIn lists the company size as one employee.dk.linkedin.com · read 15 Oct 2026
- Credentials
- For OAuth-supported providers, FolderSync receives an access token; credentials for some login-based providers are stored in its local database.foldersync.io · read 30 Sep 2026
- Data path
- An independent review reports that files go directly to the configured cloud provider or server rather than through FolderSync servers.relaaay.com · read 15 Oct 2026
- Desktop licensing
- Desktop can run free but requires a license key to unlock automation and webhooks.foldersync.io · read 15 Oct 2026
- Desktop platforms
- The desktop version supports 64-bit Windows 10 or newer, macOS 10.15 or newer, and 64-bit x86 Linux with glibc 2.17 or newer.foldersync.io · read 30 Sep 2026
- Desktop requirements
- Desktop support requires 64-bit Windows 10 or newer, macOS 10.15 or newer, or 64-bit x86 Linux with glibc 2.17 or newer.foldersync.io · read 15 Oct 2026
