SYNCING.NET Business Edition: Shared Outlook Folders and Files for a Small Team, With No Server
SYNCING.NET Business Edition is a Windows program from $94.99 a year (2 PCs) that shares Outlook mail, calendars, contacts and tasks, plus ordinary Windows folders, among colleagues' computers without an Exchange server or a cloud drive. It suits a small office or project team that keeps its data on its own PCs; the PCs exchange encrypted changes directly.
The problem it solves is the shared calendar in an office that never bought a mail server. Somebody moves a client meeting, and the other three people find out when the client calls. Here you pick the Outlook folders the group shares, invite the colleagues, and each change shows up on their PCs as it happens.
Quick facts
- Version: 6.5.0.4124 for Windows, dated May 2, 2026
- Developer: Buildway Technology LP, London
- Platform: Windows; Outlook sync runs between Windows PCs with desktop Outlook
- Limits: up to 50 computers per Outlook Group or Sync Folder, 50 Outlook Groups, 50 Sync Folders, 3,000 Outlook folders
- Security: 256-bit AES end to end, 1024-bit RSA authentication
- Price: $94.99 per year for 2 PCs, up to $374.99 for 10 PCs (auto-renewing subscription)
- Trial: 14 days, no feature limits
- Guarantee: the vendor's shop shows a 30-day money-back guarantee, no questions asked
- What we checked: installer SYNCING.NET.exe version 6.5.0.4124 (8.4 MB), digitally signed by Buildway Technology LP, downloaded from the vendor on November 9, 2026; order page prices for all four PC counts and the Manager Edition, each marked auto-renewal, on November 9, 2026. We didn't run a sync between PCs.
Before you buy: count PCs, and check your Outlook
Licenses are sold by the computer, so a four-person office with a desktop and a laptop each needs the 10-PC license, not the 5. The vendor's requirements list Outlook 2003 through 2019 (32- and 64-bit) on Windows 10 and older, and exclude Office apps from the Windows Store. Windows 11, Outlook 2021, Outlook 2024, Microsoft 365's desktop Outlook and the "new Outlook" aren't named, so test the exact setup your team runs during the trial.
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Overview
SYNCING.NET has been around for well over a decade, first from ASBYTE GmbH in Germany and now from Buildway Technology LP, which still ships signed Windows builds (the current one is from May 2026) and says it releases a new version roughly every two to three months. The store moved to PayPro Global in November 2024.
Business Edition is the same program as the Personal Edition with the limits lifted and other people let in. Each person installs it and has their own SYNCING.NET account. Whoever creates an Outlook Group or Sync Folder decides what goes in it and who is invited. It runs in the background from then on, sending only what changed, not whole files.
The vendor's device mock-up: the SYNCING.NET window on Windows showing a synced folder of images and PDFs, and the same folder in the mobile apps. It shows the file side, not the Outlook sync.
Features
Shared Outlook folders without Exchange
SYNCING.NET Business Edition mirrors the Outlook folders you choose (Inbox, Calendar, Contacts, Tasks, Notes) to every member of an Outlook Group, with up to 50 computers in a group and 3,000 Outlook folders in total. You can also build a contact group for one project and share only that, leaving the rest of your contacts private.
It works alongside an existing Exchange server
SYNCING.NET Business Edition reads both PST files and OST files from an Exchange account, and can sync folders that live on an Exchange server, or keep folders on two Exchange servers in step. That helps two offices with separate mail systems that need one shared calendar.
Team folders with no file server
SYNCING.NET Business Edition mirrors up to 50 Windows folders among the people you invite, with no cap on file size or count. A member can check out a file or folder from the Explorer right-click menu, which makes it read-only for everyone else until it's checked back in. That's useful for documents two people shouldn't edit at once.
Who's in the group stays under the creator's control
SYNCING.NET Business Edition lets only the person who created an Outlook Group invite or remove members; invited users can't change the group or its contents. Roles such as Guest or SuperUser set what each member may do.
Office network friendly
SYNCING.NET Business Edition detects a proxy server automatically or takes manual settings, can be limited to a set upload and download bandwidth, and pauses with two clicks. You can also put a maximum size on any sync folder and choose what happens when it's reached.
Benefits
- No server bill. A small office gets shared calendars and contacts without buying or maintaining an Exchange server or paying an administrator.
- Client data stays in-house. Files and mail live only on the members' own PCs, which matters to firms that can't put client records on a public cloud.
- New staff are quick to add. You invite the new PC into the existing groups and the folders arrive without anyone exporting anything.
Real-World Uses
- A shared client calendar. Five consultants see the same appointments and contacts, each in their own Outlook.
- A project folder with an outside partner. A contractor gets one Sync Folder and nothing else.
- Two branches, two mail systems. An Exchange office and a POP3 office keep one calendar folder in step.
- Boss and assistant. One person's calendar and contacts are mirrored to the other's PC, with changes running both ways.
Who It's For, and Who Should Skip It
It's for small offices and project teams on Windows that keep mail in PST files or on separate servers, and want shared Outlook folders while keeping their data on their own machines.
Skip it if:
- your company is already on Microsoft 365 or Google Workspace. Shared calendars and mailboxes are built in, so you'd be paying for what you have.
- you're the only user. The Personal Edition does the same job on your own 2 or 3 PCs for less.
- you only need files shared. The FileSharing Edition costs about half as much.
- anyone in the group uses Outlook on a Mac. Outlook sync is Windows only; the Mac and Linux clients sync files.
- you run Remote Desktop or terminal servers. The vendor says not to install it in a Terminal Server environment.
Usage Guide
- Back up each PST first and decide which PC holds the master copy of the folders you'll share.
- Install on the first PC by running SYNCING.NET.exe (8.4 MB) and creating a SYNCING.NET user account.
- Create an Outlook Group, tick the Outlook folders to share, and create any Sync Folders.
- Invite the other people. Each installs the program, signs in with their own account and accepts the invitation.
- Choose how the folders arrive. Create them as a separate tree, or import them into existing folders of the same name.
- Leave the PCs on for the first sync, which can take a long time on large folders. After that only changes move.
- Enter the license key before the 14 days are up. It goes in the same installation.
Where it falls short
- Someone has to be online. Peer-to-peer sync needs at least two members connected at once. The optional Store and Forward queue covers gaps, but holds at most 500 MB per computer and 50 MB per file, for 7 days.
- No network drives. Only local and removable disks can be Sync Folders, not network shares or NAS drives.
- Open files wait. A file another program holds open can't be synced until it's closed.
- Internet required even in one office. Traffic takes the local network when it can, but every PC must still reach the SYNCING.NET service.
- Dated documentation. The downloadable user guide is from 2015, and the shop page still carries old wording in places; go by the order page for what you'll pay.
What Users Say
Public feedback on SYNCING.NET is thin and mostly old. It has no reviews on softwarereview.com, too few App Store ratings to show a score, and we found no independent review of the Business Edition itself.
From the vendor's page and independent sites
Bob Smith, on the vendor's Business Edition page, November 22, 2016: "Great product!"
Rick Broida, CBS News MoneyWatch, March 24, 2010, on the older Home Edition: "Enter Syncing.net, which keeps all your Outlook data in sync across all your PCs." He added: "In short, it's a soup-to-nuts solution -- but not a free one."
medalark88 on AlternativeTo, October 9, 2010: "I installed a trial and liked the program. It worked well," and "I like the fact that it syncs over the internet but does not store it in online anywhere." The same user didn't buy because of the per-PC cost: "Problem is you have to purchase 1 licence per PC so you need to buy it at at least twice".
The pattern: people like that it works with no online storage, and the complaint is what it costs per computer. With this little feedback, the 14-day trial on your own PCs tells you more than reviews can.
Comparisons
SYNCING.NET Business Edition vs a hosted mailbox
Microsoft 365 or Google Workspace gives every user shared calendars and mailboxes from anywhere, with nothing to keep online at your end. It's the simpler choice if your data may live with those providers. SYNCING.NET is for teams that want it to stay on their own PCs, or that use PST-based mail.
Business Edition vs Manager Edition
Manager Edition is a single administrator license on top of the Business features. It adds full role management, including changing roles at any time and naming up to 3 backup administrators, plus an installation consultation session and preferred e-mail support. A team that just needs to share folders doesn't need it.
Editions and Pricing
| Option | Price per year | What it covers |
|---|
| Business, 2 PCs | $94.99 | Two computers |
| Business, 3 PCs | $129.99 | Three computers |
| Business, 5 PCs | $199.99 | Five computers |
| Business, 10 PCs | $374.99 | Ten computers |
| Manager Edition | $179.99 | One administrator computer, with full role management |
These are the order-page prices we saw on November 9, 2026, and each is a yearly subscription that renews automatically. Pick the option you need:
Buy 2 PCs ($94.99/year)Buy 3 PCs ($129.99/year)Buy 5 PCs ($199.99/year)Buy 10 PCs ($374.99/year)Buy Manager Edition ($179.99/year)
FAQs
What happens when a SYNCING.NET Business subscription is cancelled?
A SYNCING.NET one-year license stays valid for one year after your last successful payment and then expires. The subscription includes minor updates and major upgrades while it's active.
Can SYNCING.NET Business sync with a colleague who has a different Outlook version?
SYNCING.NET can sync between different Outlook versions on the supported list (2003 to 2019), so a mixed office doesn't need to upgrade everyone first.
Does SYNCING.NET Business keep our mail on its server?
SYNCING.NET stores account and group settings on its server, while your Outlook data and files stay on your PCs. The exception is Store and Forward, if you turn it on: encrypted changes wait on the server until they're collected, then are deleted.
Can I use SYNCING.NET Business on a laptop that's offline?
Yes. SYNCING.NET stores changes made offline on the laptop and synchronizes them as soon as it's back online.
What happens to deleted files in a SYNCING.NET Sync Folder?
SYNCING.NET moves a deleted file to the Recycle Bin on every device sharing the Sync Folder, so an accidental delete can be recovered from there.
Does SYNCING.NET Business work with phones?
SYNCING.NET has iOS and Android apps that sync files, Outlook contacts and calendars with PCs. Sharing with other SYNCING.NET users on mobile needs the mobile Business Edition.
System Requirements
- Windows 10, 8, 7, Vista or XP (x86 and x64), or Windows Server 2003, 2008 or 2012
- Pentium-class CPU, 800 MHz or faster; 256 MB RAM (512 MB or more recommended)
- Microsoft .NET Framework 2.0 or later
- Internet access (broadband recommended)
- For Outlook sync: Outlook 2003, 2007, 2010, 2013, 2016 or 2019, 32- or 64-bit; not Office apps from the Windows Store
Conclusion
SYNCING.NET Business Edition is worth its price for a small Windows team that uses PST-based mail or two separate mail systems and wants shared Outlook folders without a server or a cloud provider. The one reason to buy it: real shared calendars, contacts and folders with the data on your own PCs. The main reason not to: the per-PC price climbs quickly, and if your team is already on Microsoft 365 or Google Workspace you have this built in. Its Outlook list stops at 2019 too, so run the 14-day trial on two real PCs before you pay.
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