There is no single best cloud backup service for a small business—the right choice depends on your ratio of devices to data. If you run a sales team with many laptops that each hold modest amounts of data, flat per-computer pricing like Backblaze's tends to be the economical route. If you run a design firm with a few machines holding terabytes, a pooled-storage plan like IDrive's usually wins. This guide breaks down that pricing trade-off, explains what recovery options actually mean during a data-loss event, and compares four widely reviewed services—IDrive, Backblaze, Carbonite, and CrashPlan—so you can match a provider to your device count, data volume, budget, and recovery needs.
Pricing Models: Per-Device vs. Pooled Storage
Cloud backup services for small businesses generally charge in one of two ways. Per-device pricing, exemplified by Backblaze, bills a flat rate per computer regardless of how much data each machine holds. A 2026 roundup from Epic IT describes this model plainly: Backblaze offers "unlimited, low-cost backup" with "no confusing tiers based on storage volume: just flat pricing per computer." Eon's 2026 comparison lists Backblaze at $99 per year per computer, covering one Mac or PC plus attached drives with unlimited storage.
Pooled-storage pricing, by contrast, sells a shared capacity allowance that covers multiple devices under one account. IDrive is the clearest example: Eon lists it at $9.99 per month for 5 TB, scaling up to 100 TB, and covering computers, phones, NAS devices, and servers. Carbonite sits closer to the pooled end as well, with Eon listing its plan at $287.99 per year for 250 GB on the Core tier, covering up to 25 computers plus NAS and servers. CrashPlan charges per user—$88 per user per year with unlimited storage on endpoints, per Eon's figures.
The economic logic follows your business structure. A business with many devices but moderate data per device pays a premium under pooled plans, because it buys capacity it doesn't use; per-device pricing keeps costs flat and predictable. A business with few devices but massive data volumes can exhaust per-device economics in the other direction—though Backblaze's unlimited model blunts this—and pooled plans let a data-heavy machine draw on shared capacity. DigaCore Technology Consulting's 2025–2026 small-business review illustrates the per-device math with a worked example: a construction company with 20 devices on CrashPlan's hybrid Pro tier paid $100 per month, or $5 per device, with a typical 10-device Pro setup running about $600 per year.
One caution from the same review: per-device plans with multiple tiers can be confusing, and storage costs can add up as you grow. Treat any cost projection as a guideline and re-check plan details as your headcount and data volume change.
