Alternatives to SpiderOak
Zero-knowledge encrypted backup
SpiderOak ranks #7 of 12 in Backup software, with an Alt Score of 82. It is proprietary, sold by subscription from $6/month and available on Windows, macOS and Linux. 10 of 10 checklist rows are verified against a public source.
Individuals and small businesses who want to back up and sync sensitive files (documents, tax records, creative work, photos) across Windows, Mac, and Linux devices without giving the provider access to their data.
Automatic, versioned backup of selected folders with point-in-time recovery, so files can be restored to a state before deletion or a ransomware incident. Files sync across an unlimited number of devices tied to one account, either via a Dropbox-style folder or custom folder-to-folder sync. Sharing is done through persistent 'Share Rooms' or self-expiring single-file links that recipients can open without installing software. All data, filenames, and metadata are encrypted client-side under a no-knowledge model, meaning SpiderOak itself cannot read them.
You install the SpiderOak ONE desktop app, choose which folders to back up, and files are encrypted on your device before being uploaded to SpiderOak's servers. From there you can sync those folders to other devices on your account or generate share links/rooms, with all data remaining encrypted end-to-end throughout.
Why people leave SpiderOak
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Ranked alternatives
Ordered by Alt Score. Click any score to see the breakdown.
Feature comparison
Rows come from the Backup software checklist (14 rows). Human-verified cells only. ? means the value has not been verified.
| Backup software checklist | SpiderOak | Duplicati | Kopia | Duplicacy | Restic | Arq |
|---|---|---|---|---|---|---|
| Pricing model | ||||||
| Starts at | ||||||
| License | ||||||
| Platforms | ||||||
| Incremental backups | ||||||
| E2E encryption | ||||||
| Deduplication | ||||||
| Cloud targets supported | ||||||
| Local / NAS targets | ||||||
| Scheduling | ||||||
| Versioning & retention policies | ||||||
| Restore granularity | ||||||
| Open source | ||||||
| Compression |
Every fact and feature listed for SpiderOak is verified against its own pages. Each alternative is sourced on its own page.
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Pricing model Subscription verified 2026-07-11
$6/month per user (or $69 annually)
https://spideroak.one/#pricing -
Starts at $6/month verified 2026-07-11
$6/month per user (or $69 annually)
https://spideroak.one/#pricing -
Platforms Windows, macOS, Linux verified 2026-07-11
We ship native desktop apps for Windows, macOS, and Linux.
https://spideroak.one/faq -
License Proprietary verified 2026-07-11
SpiderOak grants Customer a non-exclusive, non-transferable license to use the Services for Customer's internal purposes.
https://spideroak.com/service-agreement/ -
Status active verified 2026-07-11
One Backup 7.5.2 Release Notes, 2025-04-16
https://spideroak.one/release-notes -
Incremental backups Yes verified 2026-07-11
SpiderOakONE uses compression and block-level deduplication across devices—only changed blocks are uploaded, and duplicates don't cost extra space.
https://spideroak.one/faq -
E2E encryption Yes verified 2026-07-11
Your data is encrypted on your device before upload, and the keys never leave your control.
https://spideroak.one/faq -
Deduplication Yes verified 2026-07-11
SpiderOakONE uses block-level deduplication so identical chunks aren't re-uploaded or re-stored multiple times within your account.
https://spideroak.one/faq -
Cloud targets supported Yes verified 2026-07-11
Your encrypted data is stored in SpiderOak datacenters in the Midwestern United States.
https://spideroak.one/faq -
Local / NAS targets No verified 2026-07-11
Your encrypted data is stored in SpiderOak datacenters in the Midwestern United States.
https://spideroak.one/faq -
Scheduling Yes verified 2026-07-11
You can also schedule windows for backup activity (and even run tasks while logged out on supported platforms).
https://spideroak.one/faq -
Versioning & retention policies Yes verified 2026-07-11
SpiderOakONE keeps historical versions by design (no fixed cap). You can prune versions whenever you like—including with a CLI policy if you want to age out old versions.
https://spideroak.one/faq -
Restore granularity Yes verified 2026-07-11
Both. Restore a whole folder hierarchy or a hand-picked set of files from a chosen point in time.
https://spideroak.one/faq -
Open source No verified 2026-07-11
SpiderOak grants Customer a non-exclusive, non-transferable license to use the Services for Customer's internal purposes.
https://spideroak.com/service-agreement/ -
Compression Yes verified 2026-07-11
SpiderOakONE uses block-level deduplication and compression so only changed chunks move.
https://spideroak.one/faq
FAQ
Yes. Kopia, Restic and Vorta have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.
Duplicati, Kopia and Restic — every license claim links its source.