Best Cloud Backup Services in 2026
Editorially independent. This page may contain affiliate links and clearly-labeled paid placements — see our advertising disclosure. Paid placements never change the ranking order below.
We evaluated seven leading cloud backup providers based on storage limits, versioning policies, platform support, and pricing structures. This ranking is designed for individuals and small businesses seeking reliable data protection without overpaying for unused capacity.
How we ranked these
At a glance
| # | Product | Score | Best for |
|---|---|---|---|
| 1 | IDrive | 9.2 | Users with multiple computers needing flexible pricing and long-term versioning |
| 2 | Backblaze | 8.9 | Users with large amounts of data who prioritize unlimited storage |
| 3 | SpiderOak One Backup | 8.5 | Users prioritizing strong encryption and multi-device support |
| 4 | Acronis True Image | 8.2 | Both beginners and advanced users seeking integrated security |
| 5 | IONOS Cloud Backup | 7.8 | Private users and companies seeking low-cost, fast backups |
| 6 | Arq Premium | 7.5 | Budget-conscious users prioritizing cost over interface polish |
IDrive
9.2- Stores 30 versions of each file indefinitely
- Supports backing up multiple computers under one $70/year plan
- Includes native support for Linux, macOS, and Windows
- 5 TB of storage included in base price
- High overage fees for exceeding storage limits
- Application behavior can be inconsistent
Best for: Users with multiple computers needing flexible pricing and long-term versioning
Backblaze
8.9- Unlimited data storage for a single computer
- Simple pricing at $99 per year or $8.25 per month
- Straightforward subscription structure
- Retains file versions for only 30 days (extendable)
- Backup and restoration processes can be cumbersome
Best for: Users with large amounts of data who prioritize unlimited storage
SpiderOak One Backup
8.5- End-to-end encryption with private key encryption
- Supports unlimited devices on one plan
- Starts at $5.75 effective monthly price
- 21-day trial version available
- Does not support backup of mobile devices
- Higher entry price compared to budget options
Best for: Users prioritizing strong encryption and multi-device support
Acronis True Image
8.2- Includes built-in malware protection
- Supports mobile device backups
- Starts at $4.58 effective monthly price
- 30-day free trial available
- Pricing scales with device count (1–5 devices)
- Complex feature set may overwhelm beginners
Best for: Both beginners and advanced users seeking integrated security
IONOS Cloud Backup
7.8- Fast data transfer speeds
- Starts at $2.50 effective monthly price
- Supports 1–unlimited devices
- 30-day money-back guarantee
- Setup process is somewhat complicated
- Limited versioning details provided
Best for: Private users and companies seeking low-cost, fast backups
Arq Premium
7.5- $60 per year for 1 TB of storage
- Offers online backup at a fraction of competitor costs
- Budget-friendly entry point
- Interface described as quirky
- Limited platform support details
Best for: Budget-conscious users prioritizing cost over interface polish
Our verdict
IDrive offers the best balance of indefinite versioning, multi-computer support, and Linux compatibility for $70/year, making it the top choice for most users. Backblaze remains the strongest option for those requiring unlimited storage on a single machine.
Frequently asked questions
Which service offers the best value for multiple computers?
IDrive supports backing up multiple computers under one $70/year plan with 5 TB of storage.
How long do these services retain file versions?
IDrive stores 30 versions indefinitely, while Backblaze retains versions for only 30 days unless extended.
Which provider offers the lowest monthly cost?
IONOS Cloud Backup starts at $2.50 effective monthly price, the lowest among the ranked services.
Does any service support Linux?
Yes, IDrive explicitly supports Linux in addition to macOS and Windows.
