GoodSync vs Unison (2026): which should you pick?

Pick GoodSync if

• Fits if you want scheduled backup or two-way sync between folders and servers
• Works for people who run Windows or Linux servers and want an unattended service

Look elsewhere if

• Skip it if you need a price before you start, as none is recorded
• Watch out: advanced features are free only for the first 15 days
• Not for you if you need a phone app, since only desktops and NAS are listed
• Watch out: the free-versus-paid limits were not read
• Tight if you use a specific NAS, as which brands are supported was not read

Pick Unison if

• Fits if you are happy in a terminal and want conflict-aware sync between two machines
• Works for people syncing a laptop with a Unix server over ssh

Look elsewhere if

• Skip it if you want a point-and-click app, as it is run from the command line
• Watch out: the project releases source, and pre-built binaries come from other sources
• Tight if you need help: the README says not to ask in GitHub issues
• Watch out: the maintainers say very few people work on it, so fixes are slow
• Not for you if you want cloud storage sync, as it is two-folder sync

GoodSync

• Prices could not be read: the vendor's site returned a connection restriction page, so no plan prices are recorded here.
• The vendor lists a free download alongside paid editions, but the free-versus-paid limits were not read.
• Advanced features are free only for the first 15 days.
• NAS platforms are mentioned for download; which NAS brands are supported was not read.

Unison

• The project releases source code; pre-built binaries come from packaging systems or CI builds.
• The README says not to ask for help in GitHub issues; questions go to the wiki and mailing lists.
• The maintainers say very few people work on it, so bug and feature handling is slow.
• The old project website is archival; development and issues are on GitHub.

GoodSync

Backup or two-way sync

Each job is set up as a one-way backup or a two-way synchronization between a source and a destination folder.

Automation options

Jobs can run in real time, periodically or on a schedule.

Many destinations

The vendor says it supports all major protocols and cloud services.

Server edition

GoodSync for Server OS is described as an unattended service for Windows and Linux servers, with a free trial.

GoodSync Connect and Explorer

Separate Connect and Explorer products are listed in the site's feature menu.

Backup Control Center

A business offering for managing backups is listed in the site's business menu.

Unison

Two-way synchronization

Changes made on either replica are propagated to the other, and updates that do not conflict are applied automatically.

Conflict detection

When both sides changed the same file, Unison shows the conflict instead of silently picking a winner.

Cross-platform pairs

It can synchronize a Windows laptop with a Unix server, for example, over ssh or directly over TCP.

Efficient transfers

Small edits to large files use a compression protocol similar to rsync's, which suits slow links.

Repeat mode

With a filesystem monitor, repeat mode propagates changes soon after they happen.

No special privileges

It is a user-level program: no kernel changes, superuser rights or FUSE are needed on either host.

GoodSync

Pricing could not be confirmed. See goodsync.com.

Unison

• Free$0

  Full source code under the GNU General Public License, version 3; there are no paid editions.