Datum Storage
Datum Storage: A mobile-friendly decentralized storage service with S3 access and developer tools. Ranked #16 of 25 in Decentralized Storage Services by our editors (7.3/10); pricing: From $3.99/mo; best for mobile backup users needing S3 compatibility.
At a glance
- Editor score7.3 / 10
- PricingFrom $3.99/mo
- Best forMobile backup users needing S3 compatibility
- Free planNo
- Paid from$3.99/unit/mo
- Network typeHybrid
- Facts checked21 Sep 2026
Where it wins
- End-to-end encrypted storage with blockchain-backed records
- S3 endpoint works with Arq Backup, Duplicati, Duplicity, and Duplicacy
- iOS and Android apps plus a JavaScript SDK
Where it doesn't
- The 1 TB allocation applies only to the first year
- Additional storage is described as forthcoming
- No permanent free plan is offered
Our verdict on Datum Storage
Datum Storage is a decentralized cloud-storage service for individuals and developers who want encrypted file backups across mobile apps and compatible backup tools. Access is provided through the Datum ID mobile app, S3-compatible applications, and an API. The service uses a hybrid network and supports end-to-end encrypted data storage, while blockchain-backed records provide a record layer for stored data.
Its strongest practical fit is compatibility. An S3-compatible storage endpoint connects Datum Storage with applications built for Amazon S3, including Arq Backup, Duplicati, Duplicity, and Duplicacy. That gives mobile backup users and developers several established ways to send or manage files without relying only on the native apps. Developers can also use the JavaScript SDK, which includes set, get, and remove operations. The combination of iOS, Android, API access, and backup-tool integrations makes the service more flexible than a mobile-only backup destination.
The published storage plans center on 1 TB for the first year. Additional storage is listed at $3.99 per terabyte per month, while the service describes that expansion as forthcoming. This makes Datum Storage a reasonable choice for users who value encrypted decentralized storage, S3 compatibility, and a first-year allocation, particularly when Arq Backup or another supported application is part of the workflow. It is less suitable for buyers seeking a permanent free allowance or immediately available paid capacity beyond the initial allocation.
Datum Storage pricing
All 2 Datum Storage plans and prices →
Datum Storage fact sheet
| Free plan | No |
|---|---|
| Paid from | $3.99/unit/mo |
| Free storage | Not verified |
| Network type | Hybrid |
| Client-side encryption | Not verified |
| IPFS support | No |
| Desktop apps | Yes |
| Mobile apps | Yes |
| Deployment | Cloud, Desktop, Mobile |
| Platforms | iOS, Android |
| Support | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 5 integrations: Amazon S3-compatible applications, Arq Backup, Duplicati, Duplicity, Duplicacy |
| Pricing | From $3.99/mo (source) |
| Website | storage.datum.org |
| Facts checked | 21 Sep 2026 |
Datum Storage integrations
Datum Storage lists 5 integrations on its own site.
- Amazon S3-compatible applications
- Arq Backup
- Duplicati
- Duplicity
- Duplicacy
Alternatives to Datum Storage
- SiaA broad, encrypted storage platform with a free tier and flexible access options.9.4
- PeergosA privacy-focused storage platform spanning hosted, self-hosted, and peer-to-peer use.9.1
- FilebaseAffordable hybrid storage with IPFS, S3 compatibility, gateways, and CDN delivery.8.9
See all Datum Storage alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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