Are there any backup storage services that automatically version files and keep egress costs predictable?

Yes. If you want automatic versioning plus predictable egress pricing, the main thing to look for is a backup object store with flat-rate or bundled download allowances, not a pure pay-per-GB egress model.

Good options to check:

• Backblaze B2

  • Automatically supports file versions via lifecycle/versioning behavior when used through backup tools.
  • Egress is generally predictable because Backblaze includes a monthly free download allowance and has straightforward pricing.
  • Popular with backup tools like Veeam, Arq, Duplicati, etc.

• Wasabi Hot Cloud Storage

  • Supports object versioning.
  • The big selling point is no separate egress fees under its pricing model, which makes costs easier to predict.
  • Good fit if you expect to restore data sometimes and don’t want surprise bandwidth charges.
  • Watch out for minimum storage duration policies.

• Cloudflare R2

  • No egress fees to the internet.
  • Supports object versioning-like patterns depending on your setup, though it’s more of an object store than a classic backup product.
  • Often used with custom backup workflows or compatible tools.

• Acronis Cyber Protect / IDrive / Carbonite

  • These are more “backup services” than raw storage.
  • They often handle versioning automatically and usually bundle storage/transfer in a way that makes pricing more predictable.
  • Good if you want a managed backup app rather than DIY storage.

A practical way to think about it:

• If you want cheap, simple object storage with backup tooling: Backblaze B2
• If you want predictable restores with no egress surprise: Wasabi
• If you want a managed backup product: Acronis, IDrive, or Carbonite

If you tell me:

1. how much data you have,
2. how often you restore,
3. whether you want cloud-only or hybrid backup,

I can narrow it down to the best 2–3 choices.