Backblaze vs Arq: Which Mac Backup Solution is Right for You?

If you’re looking for the best cloud backup for Mac, two names come up constantly: Backblaze and Arq. Both protect your data. Both work seamlessly on macOS. But they’re built around fundamentally different philosophies — and choosing the wrong one will either cost you more than necessary or leave you without features you need.

Quick Verdict

Choose Backblaze if: You want the simplest, most affordable set-and-forget cloud backup. Install it, forget about it, and your entire Mac is backed up continuously for $99/year.

Choose Arq if: You want complete control over where your data goes, how it’s encrypted, and how long it’s retained. You supply the cloud storage, Arq supplies the backup engine.

Pricing

Backblaze Personal Backup costs $99/year or $9/month. That includes unlimited storage — your entire Mac, no caps. It’s one of the best value propositions in consumer software.

Arq Premium costs $29.99/year for the software. But you also need to pay for cloud storage separately — typically $5–$10/month for an AWS S3, Backblaze B2, or Google Cloud bucket depending on your data size. For a 1TB Mac, expect to pay around $5–$6/month in storage costs on top of the software fee.

Total annual cost comparison for a 1TB Mac:

Backblaze: $99/year (all-in)
Arq + Backblaze B2: ~$90/year ($30 software + ~$60 storage)

Winner: Roughly equal at 1TB — Backblaze gets more expensive comparatively at smaller sizes, Arq gets cheaper at larger sizes.

Ease of Use

Backblaze is genuinely one of the easiest pieces of software ever made. Install it, enter your email, and it starts backing up your entire Mac automatically. Zero configuration required.

Arq requires you to set up a cloud storage account, create a bucket, configure credentials, and set your backup schedule and retention policy. It’s not complicated for technical users — but it’s not set-and-forget either.

Winner: Backblaze — dramatically simpler for non-technical users.

Privacy and Encryption

Both use AES-256 encryption. The critical difference is key management.

Backblaze holds the encryption keys by default (though you can optionally set a personal encryption key). This means Backblaze could theoretically access your data, and would comply with legal requests.

Arq uses zero-knowledge encryption by default. You hold the keys. Arq cannot access your data. Period.

Winner: Arq — for users who need true privacy, there’s no comparison.

Restore Experience

Backblaze lets you restore files via browser download or order a physical USB drive/hard drive shipped to your door for large restores. The web restore interface is excellent.

Arq restores through the desktop app. It’s fast and reliable but requires the app to be installed and configured.

Winner: Backblaze — the physical drive restore option is a genuine differentiator for large data sets.

Version History

Backblaze retains 30 days of version history by default, extendable to 1 year (+$2/mo) or forever (+$4/mo).

Arq’s version history is entirely configurable. Set it to keep versions forever, or just the last 30 days — it’s up to you and limited only by your storage costs.

Winner: Arq — unlimited configurable retention.

Who Should Choose Backblaze

Home users and non-technical Mac users
Anyone who wants truly zero-maintenance backup
Users with very large data sets (photos, video libraries) where unlimited storage matters
Anyone who wants the peace of mind of a physical restore drive option

Who Should Choose Arq

Privacy-conscious users who need zero-knowledge encryption
IT professionals and power users who want full control
Users already paying for cloud storage they can repurpose
Anyone backing up to local NAS or network storage in addition to cloud

The Best of Both Worlds

Many serious Mac users run both: Arq for local NAS backup (fast, private, no ongoing cost) and Backblaze for cloud backup (offsite protection, simple restore). This gives you the 3-2-1 backup strategy at a reasonable combined cost.

FAQ

Can Arq back up to Backblaze B2? Yes — Arq works excellently with Backblaze B2 cloud storage. Many users use Arq as the backup engine with B2 as the storage destination.

Does Backblaze back up external drives? Yes — Backblaze backs up connected external drives as long as they’re connected at least once every 30 days.

Is Backblaze safe for sensitive business data? Backblaze is SOC 2 Type II certified. For highly sensitive data where you need zero-knowledge encryption, use Arq or set a personal encryption key in Backblaze.

Can I use Arq without any monthly storage fees? Yes — Arq can back up to a local drive or NAS with no cloud storage costs at all. You’d lose the offsite protection but gain a powerful local backup system.