Backblaze vs Sync.com: Which Should You Buy?
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Quick verdict
| Situation / Need | Recommended service |
|---|---|
| You need off‑site backup of a NAS or PC and want “set it and forget it” reliability with unlimited personal storage. | Backblaze (affiliate) |
| You prioritize privacy, zero‑knowledge encryption, and are okay with slightly slower sync speeds for peace of mind. | Sync.com (affiliate) |
If you’re a home‑lab tinkerer who wants to protect your data without worrying about caps, go with Backblaze. If encrypted storage is non‑negotiable, Sync.com wins.
Spec‑by‑spec comparison
| Feature | Backblaze (affiliate) | Sync.com (affiliate) |
|---|---|---|
| Category | Cloud Backup | Cloud Storage |
| Service type | SaaS | SaaS |
| Monthly price | $9 /mo | $8 /mo |
| Best for… | Off‑site NAS/PC backup | Encrypted cloud storage |
| Core pros* | Unlimited personal, cheap B2 | Zero‑knowledge, simple |
| Core cons* | B2 egress costs | Slower sync |
*Pros and cons are taken directly from the vendor’s feature list.
Deep dive: What really matters for a home lab
1. Backup vs. Storage – know the difference
Backblaze advertises itself as a cloud backup service. That means it continuously snapshots your files, preserving version history and protecting you against accidental deletion or ransomware on the source device. For a homelab that runs a NAS full of media, VMs, and config files, this “backup” mindset is crucial: you’re not just moving data to another bucket; you’re creating a safety net.
Sync.com, by contrast, falls under cloud storage. It’s more like an online drive where you decide what to keep and when to delete it. If your primary goal is to store encrypted archives or share files with teammates, Sync.com feels natural. But if you need the “point‑in‑time” recovery that a backup service provides, you’ll have to build that discipline yourself.
2. Pricing – cheap enough for continuous use?
Both services sit in the single‑digit dollar range per month, which is comfortably affordable for most hobbyists. Backblaze’s $9 /mo includes unlimited personal storage, so you can throw a terabyte or two at it without watching your bill climb. The only hidden cost comes from B2 egress—when you pull data out of Backblaze’s object store (B2) you’ll pay per GB transferred.
Sync.com is $1 cheaper per month, but its price includes zero‑knowledge encryption baked in. If you were to add a third‑party encryption layer on top of any other storage solution, the cost could easily surpass that $8 /mo baseline. For many home labs the extra dollar is worth the built‑in privacy.
3. Performance – does speed matter?
Backblaze’s backup agents are optimized for high throughput and low CPU overhead, which means your NAS can keep syncing while you run other workloads. The only performance caveat appears when you start downloading large amounts of data from B2; egress fees may make you think twice about frequent bulk restores.
Sync.com admits to slower sync speeds. In practice that translates into longer upload times for big media libraries or VM images, especially if your internet uplink is modest. If you’re okay with “overnight” uploads and value encryption above speed, the trade‑off feels acceptable. For a lab where you frequently spin up fresh VMs from cloud snapshots, slower sync could become an annoyance.
Pros & cons
Backblaze (affiliate)
Pros
- Unlimited personal storage – no need to guess how much space you’ll use.
- Cheap B2 egress tier compared with many enterprise object stores (though still a cost).
- Designed specifically for backup, offering versioning and ransomware protection out of the box.
Cons
- B2 egress costs can add up if you restore large amounts regularly.
- Focused on backup; it doesn’t provide built‑in zero‑knowledge encryption.
Sync.com (affiliate)
Pros
- Zero‑knowledge architecture – even Sync.com staff cannot read your files.
- Simple, clean UI that feels like a traditional cloud drive.
- Good for encrypted archives and secure file sharing between devices.
Cons
- Slower sync performance, especially with large datasets common in homelabs.
- No explicit “unlimited backup” guarantee; you manage storage limits yourself.
Which should you buy?
If your primary pain point is protecting a constantly changing NAS or workstation and you want to forget about capacity planning, Backblaze (affiliate) is the clear choice. Its unlimited personal tier means you can back up everything without hunting for extra plans, and its backup‑centric design aligns with disaster‑recovery best practices.
If privacy is your top priority, and you’re comfortable handling slightly slower uploads in exchange for a zero‑knowledge guarantee, go with Sync.com (affiliate).