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Minimum price:

Free Plan

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Minimum price:

Free Plan

Visit Website
  • Scheduled backup: Available
  • Disaster recovery: Available
  • Privacy & security: 2048-bit RSA/SSL
  • External data hard drive: No
  • Speed: Great
  • Online file sync: Yes
  • Continuous data backup: Yes
  • Cloud storage: Yes

works on:

Mac OS Mac OS
Windows Windows
Android Android
Apple Apple

Best For

Effortless synchronization

  • End-to-end encryption
  • Fast and easy syncing
  • 365-day file history and rewind
  • Unlimited file size
  • No Linux support
  • Annual billing only

Free Account


Solo - Basic


Solo - Professional


Teams - Standard


Teams - Unlimited


Teams - Enterprise

Custom makes file synchronization effortless. With zero-knowledge encryption, no third-party access, and additional security measures, it’s one of our favorite secure cloud storage platforms.

But is it the right choice for you?

In this review, we take a comprehensive look to help you find out!

Device Compatibility

The download is available for:

  • macOS 10.9 or higher
  • Windows 7, 8, and 10

There is also a legacy installer for Windows XP and macOS 10.6 through 10.8. isn’t available for Linux, but you can still access your files from the web application.

You can also manage your files from a mobile device with the app for Android or iOS.

What Is

Sync is a file syncing and cloud storage service optimized for privacy and ease of use.

With Sync, you can use zero-knowledge encryption for all of your data at no extra cost. Trusted by over 750,000 users, lets you bring precious memories anywhere.

With built-in zero-knowledge encryption, the platform is one of the best secure cloud storage options. You can keep your files safe and synced across devices or effortlessly share and collaborate with others.

Now let’s dive deeper into our review:

Ease of Use

Getting started with doesn’t take longer than 10 minutes.

Creating an account gives you 5GB of file storage that doesn’t expire. The system prompts you to get the desktop app and guides you through the installation process. You can also drag and drop files into the web client.

The whole setup, file upload, and synchronization process is fast and effortless, which is great considering that most consumers look for a seamless user experience first of all. Features emphasizes security but also showcases excellent qualities for personal and business use alike. Our review for 2021 found out these best features:

Advanced File Versioning

One of Sync’s most valuable functions is file versioning. Free users can reverse file changes for 30 days, while premium accounts enjoy 365-day file versioning and backup.

With account rewind, you can protect yourself from ransomware by shifting your data to an earlier version.

And, only the most recent file version counts against your online file storage allowance. You can backup as many files as you want without worrying about running out of space.

Safe Sharing

Another thing we discovered while doing this Sync software review is its safe sharing feature.

With it, you can share file and folder access without compromising security. includes share controls like read-only (or preview-only) access, passwordprotected sharing, expiry dates, and download limits.

If you lose one of your devices, you can revoke access to your data with a remote device lockout. You can also withdraw shared access at any time.

Privacy Protection Compliance

If your business deals with sensitive data, you’ll be happy to learn what we did during this Sync com review. is the perfect cloud solution. The platform is compliant with:

  • HIPAA and similar regulations related to personal healthcare information (PHI),
  • GDPR, which applies to European and UK user data alike, and
  • PIPEDA, Canada’s federal law on personal data privacy for the private sector.


Unlike other cloud storage providers (like Google Drive or OneDrive,) the API hasn’t been published. The API allows third-party apps to integrate easily with the platform.

So, why doesn’t Sync publish it? Because they’re committed to preventing third-party access, as we’ve confirmed while researching for our review.

Without a published API, no external companies can see or interact with your data. This extra layer of security ensures your information stays safe and private.

That said, Sync still offers some valuable integrations. You can upload files directly from your Drive account from both mobile and desktop.

Sync also has full support for all Microsoft Office formats and virtually all photo formats. You can use it to store Adobe PDF and PSD files, too. Security

Many reviews testify that is one of the best cloud storage options for data safety and privacy.

As it’s built around zero-knowledge encryption, the platform secures your information and doesn’t store your keys. It means can’t access your files, even if there’s a government order.

But, since doesn’t have your key, forgetting your password means losing access to all encrypted files.

While researching for our review for 2021, we discovered that you could disable end-to-end encryption and opt for other security features (like two-factor authentication) to prevent that.

Keep in mind that the average cost per lost record is $148, so it pays to give importance to this feature. Login and Setup

Installing is quick and effortless. The website recognizes your platform and recommends the installer for you.

We tested the Windows 10 download, and we were happy with both the speed and ease of installation and setup. Even a beginner can get started with in under ten minutes.


Sync store reviews all say the same thing — with the mobile app, you can access your synced files, backup photos and videos, send large files, and collaborate on shared folders.

The Android app installed and ran smoothly on our device. We were happy to discover we could upload files directly from Drive and synchronize the photos and videos on our phones. It wouldn’t surprise us if it were among the 218 billion apps downloaded last year.

But our Sync review experienced that to view and edit files; we had to download them. This is expected with end-to-end encryption, but it could slow you down.

The iOS app shares the same functionality and is generally well-liked by reviewers. Upload and Download Speed

Sync doesn’t restrict your speed, regardless of what plan you’re using. But, will never be a speed champion, as many Sync store reviews insinuate.

When you use end-to-end encryption, it takes some time for files to be secured. The maximum transfer speed with is 40 megabits per second.

You’re not likely to notice the difference in smaller files. Uploading a 500MB file only took a couple of minutes, and it was automatically accessible across devices.

When we tested it with larger files, performed admirably, though it’s not the fastest cloud storage we’ve used. Pricing and Plans has a vast range of plans — six to be exact, including the free plan. Here’s how they differ:

For Individuals

Individuals can choose between three plans: Free Plan

The free starter account gives you 5GB of Sync cloud storage, but you can earn up to 25GB of space by referring others.

Free accounts enjoy essential features like file versioning, vault storage, secure sharing, and collaboration tools. It made one of the best free file sync software in 2020.

It’s important to note that all plans come with free end-to-end encryption and support across devices.

Sync Solo Basic Plan

If you want more storage space for your personal use, go for the Personal Mini plan. It comes with 2TB storage and unlimited share transfer limits.

It also comes with 180-day file history and recovery, advanced sharing and collaboration, and all other features that the free plan has. price for the Solo Basic plan is $8/month billed annually.

Sync Solo Professional Plan

If you run out of space, opt for a Sync Solo Professional plan. It comes with 6TB storage, 365-day file history and recovery, and HIPAA compliance.

The plan will set you back $20/month billed annually.

For Teams

If you’re using for business, go for the pro teams plans:

Sync Pro Teams Standard Plan

This plan will suit you best if you have a small business or a team.

While researching for this review, we discovered that for $5/month per user, billed annually, you’ll get 1TB storage space for every user, admin account, sync vault, and 180-day file history and recovery.

Sync Pro Teams Unlimited

If you have a larger team or need advanced storage organization, you can get the Pro Teams Unlimited plan for $15/month per user, billed annually.

You’ll get custom branding, unlimited storage, an admin account, and 365-day file history and recovery. Moreover, you’ll get a multi-user admin console and VIP immediate response.


You’ll have to contact the support to get the prices for this plan, but if you need accounts for over 100 users, the Enterprise plan should fit you best.

To start this plan, you’ll need at least 100 users. You’ll get a dedicated account manager and training. Customer Support

If you have any questions or technical issues, you can get in touch with the Sync team through a contact form.

While we were researching for this Sync review, we reached out to them twice. We contacted customer support from a free account both times, and they were quick at answering our questions.

Pro accounts have priority email support. However, there’s no phone or live chat support that 71% of consumers prefer and which could’ve made their customer support department even stellar.

You can also consult the help center for detailed support articles, answering common questions.

The platform promises 99.9% SLA uptime, meaning you’re unlikely to see down. But, you can consult the status of all systems in real-time on the Sync website. User Reviews

Users have named Sync one of the best personal cloud storage services, praising their commitment to privacy, competitive pricing, and ease of use.

But of course, not all users had the same experience.

Hence, some reviews mentioned disappointments about the slow loading speed and lack of immediate response from customer support.

It’s something they have to improve since most users trust customer reviews as much as they do their friends.

But one that caught our attention was the trail of review on Reddit. It was overwhelmingly positive, especially when it comes to the free-for-all zero-knowledge encryption. Overall, Sync is one of the Internet’s favorite cloud storage options. Alternatives

File sync software reviews and ours mention among the best cloud storage options on the market today. But how does it stack up with its alternatives?

pCloud vs. Sync

pCloud offers secure cloud storage services, just like The platform gives you more free storage, but you have to remain active (at least every three months) to prevent account termination.

pCloud does offer end-to-end encryption, and they’re very transparent about their business. But, the advanced security will cost you — pCloud Crypto comes at an additional monthly fee.

Google Drive vs.

Google Drive is a champion at integrations. The platform’s advanced functionality (as a part of the G-Suite environment) and pricing are hard to beat.

But Google Drive doesn’t have zero-knowledge encryption, nor do they protect your information from third-party access. is a relatively rising contender, which earns a plus point over Google Drive for its zero-knowledge encryption. vs. Dropbox

Both frequently featured on home cloud storage reviews, Sync and Dropbox have several key differences:

  • Dropbox gives you less free storage, with free accounts only providing 2GB of space.
  • uses end-to-end encryption, while Dropbox doesn’t.
  • The zero-knowledge encryption on means file uploads will be slower, though you’re only likely to notice it for large files.

Overall, is the better choice for privacy, though big players like Google Drive and Dropbox might offer more in terms of integrations.

Our Verdict

All of the research for this review only proved that there are numerous reasons for it to be one of our favorite online file storage and file syncing software options.

It’s an affordable, secure, and easy-to-use platform for business and personal use, optimized for easy file access, sync, and sharing, is an excellent solution for business and individual users.


How to use

Opening a Sync account grants you 5GB of forever free space. Use it to store, sync, and access essential files or backup your memories. To get the whole experience, get the desktop client. The download is available for Mac and Windows.

If you run out of space, you can upgrade to a Pro account, which comes with up to 4TB of space for individual users. Sync business accounts allow you to create individual accounts for employees and manage them from a centralized admin panel.

How does work? is a hosted object storage service built for file security. Your data is encrypted with an individual key (that even the company can’t access) and sent over a secure TLS/SSL channel.

Servers are protected with 256-bit AES encryption to prevent attackers from reaching your data. Overall, a security breach is near impossible, thanks to their multi-layer safety and privacy measures.

Is really secure?

Yes, is one of the best online storage platforms in terms of security and data protection.

Sync offers zero-knowledge encryption for all users, which means that it can’t access your files even if there’s an authoritative order because it doesn’t store your keys.

It also prevents third-party access to your data and uses secure channels for all data transfers to and from the server.

Where Is based?

Sync is based in Toronto, Canada. The company has all its support in-house to ensure quality, and they only use secure communications with data centers, which our review appreciates greatly.