Unlimited Cloud Storage in 2026: Sync.com and the Plans That Still Offer It

Truly unlimited cloud storage is rare in 2026, and free unlimited online storage does not exist from any provider you should trust. Big providers such as Google and Dropbox replaced their unlimited tiers with large fixed quotas. The plans that still sell unlimited storage are Sync.com Personal Unlimited ($45 a month billed annually, less in the first year), Box Business and higher (three-user minimum), Jottacloud Unlimited, and Backblaze for backup only, plus unlimited photo (not video) storage in Amazon Photos for Prime members. Each one has a limit somewhere, usually on upload speed after a few terabytes.

I store my own lab backups on a TrueNAS box at home and use the cloud for the copy that must survive a fire or theft, so I care about what "unlimited" means once you pass a few terabytes. Prices and terms below were checked on each provider's own pricing page in October 2026.

Unlimited cloud storage plans in 2026 (comparison)

If you only need a few terabytes, a fixed plan is cheaper. Sync.com Solo 5TB costs $28 a month billed annually at the regular price, and its Teams 10TB plan is $11.25 per user per month billed annually (three-user minimum).

Free unlimited online storage: what actually exists

No mainstream provider gives unlimited storage for free. The closest thing is Amazon Photos, which gives Prime members unlimited full-resolution photo storage (video is limited to 5 GB), but that needs a paid Prime membership. The biggest honest free plans are:

• Google: 15 GB, shared across Gmail, Drive and Photos.
• Box Individual: 10 GB, with a 250 MB per-file upload limit.
• Sync.com: 5 GB with end-to-end encryption.
• Jottacloud: 5 GB.
• Amazon Photos without Prime: 5 GB combined for photos and video.

An app or site promising "free unlimited cloud storage" is either a short promotion, a service funded by ads and your data, or one that may disappear with your files. For large free storage the realistic answer is your own hardware: a small NAS at home (see how I built a NAS with FreeNAS) plus a paid cloud copy for your most important files.

Cloud Storage for Personal Use

For individuals, secure cloud storage keeps photos, videos, music and documents in one place and reachable from any device. Unlimited plans matter most if you shoot raw photos or 4K video, keep a large music library, or want an off-site copy of a whole NAS. If your library is under 5 TB, a fixed plan such as Sync.com Solo 5TB costs less than Personal Unlimited and has no speed caveat.

Unlimited Cloud Storage for Business Use

For businesses, unlimited storage is most useful for video production, design and engineering firms that create large files every week. Two things matter more than the headline number:

• Minimum seats. Box needs at least three users on its business plans; Dropbox Advanced also starts at three licences.
• Per-file limits and speed rules. Box caps the size of each upload by plan, and most unlimited plans slow uploads after a threshold.

Sync.com no longer lists an unlimited Teams plan on its Teams pricing page; its largest Teams plan is 10 TB per user. Teams that want everything unlimited should compare Box, and teams that put privacy first should size Sync.com's 10 TB plan against their real usage.

SYNC.com Review

Sync.com is a Canadian cloud storage and file-sharing service built around end-to-end (zero-knowledge) encryption, so Sync itself cannot read the files you store. It covers file sync across devices, sharing links with passwords and expiry, team shared folders, and file version history. Apps are available for Windows, macOS, iOS and Android, plus a web panel.

Sync.com Pricing (October 2026)

The screenshot above is from when this post first went up; current prices from Sync.com's pricing pages are:

Individuals (per month, billed annually; first-year promotional price in brackets)

• Free: 5 GB.
• Personal 1TB: $12 ($9 first year).
• Solo 5TB: $28 ($21 first year).
• Personal Unlimited: $45 ($33.75 first year). No capacity limit; upload speed management may apply beyond 10 TB.

Teams (per user per month, billed annually, three-user minimum)

• Teams 1TB: $4.50.
• Teams 2TB: $6.75.
• Teams 10TB: $11.25.
• Sync Enterprise: 100+ users, contact sales.

Sync shows the Teams prices with a first-year discount, and promotional prices renew at the regular rate, so check the pricing page on the day you buy.

Sync vs Dropbox

The main difference is encryption. Sync.com uses end-to-end encryption, so only you and the people you share with can read your files. Dropbox encrypts data in transit and at rest on its servers, but Dropbox holds the keys, which is what lets it offer features such as server-side search and previews across many integrations.

On storage, neither has an unlimited team plan any more: Dropbox Advanced gives 5 TB per licence with a three-licence minimum and up to 1,000 TB available, while Sync.com Teams goes up to 10 TB per user. For a single person who wants unlimited storage, Sync.com Personal Unlimited is the option; Dropbox has no unlimited personal plan. Choose Dropbox if you rely on its app integrations or need a native Linux client, and Sync.com if privacy matters most.

Sync Desktop App

The Sync desktop app adds a Sync folder to your computer and keeps it in step with your account, so files you save there upload automatically and appear on your other devices. Sync's install page lists a Windows app (the CloudFiles version supports Windows 10 and 11), a macOS app (CloudFiles for Mac is in beta) and mobile apps for iOS and Android. Once you sign in you can upload, share and restore earlier versions from the app or the web panel.

Sync.com Linux

Sync.com does not have a native Linux desktop app. Its install page lists Linux under a WebDAV server option, which you connect to with tools such as rclone or the Nautilus and Dolphin file managers. If you live on Linux and want a native sync client, compare Dropbox or a self-hosted option; I use rclone for cloud copies from my lab, as in my Proxmox to Google Drive rclone guide.

For help choosing between providers, see our top cloud storage choices and the best practices for cloud storage and file organization.