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Datum Storage

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What Datum Storage is

Datum Storage is decentralized cloud storage on the Datum Network, designed to work with the Amazon S3 API format and custom S3 endpoints. Datum Drive adds a virtual hard disk to a computer that works like a folder. The product says data is end-to-end encrypted and users hold the key. Storage accounts attach to a Datum Identity, which requires email and phone verification to create. After account creation, Datum provides a URL and key and secret credentials corresponding to an S3 Access Key ID and Secret Access Key. It recommends Signature Version 4 if backup software offers more than one request-signature option. Arq Backup for Mac and Windows is listed as tested for compatibility; Duplicati, Duplicity and Duplicacy are named as S3-compatible applications that have not been tested. The Datum ID app is listed for iOS and Android to sign up for storage and manage credentials and usage. A free plan provides 1 TB for the first year. Additional storage is listed at US$3.99 per terabyte per month, but buying it is described as coming soon. Datum also says its mobile workflow is coming soon.

Who it suits

Datum Storage may suit people who want S3-compatible cloud storage for backup software and a virtual drive on a computer. Its identity verification and key-management model are relevant to users willing to set up a Datum Identity and manage storage credentials.

What it does well

  • Data is described as end-to-end encrypted.
  • Works with the Amazon S3 API format and custom endpoints.
  • Arq Backup for Mac and Windows is listed as tested.
  • Free plan provides 1 TB for the first year.

What to know first

  • Creating a Datum Identity requires email and phone verification.
  • Additional storage is described as coming soon.
  • The mobile workflow is described as coming soon.
  • Duplicati, Duplicity and Duplicacy are listed as untested.

Limits

The free plan provides 1 TB for the first year. Additional storage is listed at US$3.99 per terabyte per month, but purchasing it is described as coming soon.

Plans

PlanBilled and limitsPrice
Free storageOne free terabyte for the first year · 1 TB · first yearFree
Additional storageper terabyte per month · Additional capacity · availability marked coming soon$3.99 a month
Free first-year storagefirst year · 1 TB · free for first yearOn request

As storage.datum.org lists them, read 7 Oct 2026. The maker's own page has the final word.

Getting started

  1. Visit the Datum Storage website.
  2. Create a Datum Identity using email and phone verification.
  3. Create a storage account and receive its URL, key, and secret.
  4. Configure compatible backup software with the supplied connection details.
  5. Use Signature Version 4 if the backup software offers multiple request signature options. The Datum ID app is listed on the App Store and Google Play for sign-up and credential and usage management.

Datum Storage is a hybrid decentralized storage service built on the Datum Network, pairing a desktop virtual drive with S3-compatible object storage. It suits people who want client-held encryption keys and backup-tool compatibility, but its current mobile and capacity-purchase workflow makes it a better fit for planned deployments than for urgent, fully self-service expansion.

Overview

Datum Drive presents remote storage as a virtual hard disk that behaves like an ordinary computer folder. For applications and backup jobs, Datum exposes the Amazon S3 API format through custom S3 endpoints. That combination gives individuals a familiar drive view while preserving an object-storage route for automation.

Accounts are tied to a Datum Identity, and registration requires both email and phone verification. After signup, Datum supplies an endpoint URL, an S3 Access Key ID equivalent and an S3 Secret Access Key equivalent. Backup software that supports several signing methods should use Signature Version 4.

Key features

Encryption and control

Data is end-to-end encrypted, with the user holding the key. That is a meaningful privacy advantage for owners who do not want encryption control delegated to the storage provider, though it also makes credential management especially important.

S3 backup compatibility

Arq Backup for Mac and Windows is identified as tested with Datum. Duplicati, Duplicity and Duplicacy are named as S3-compatible applications but have not been tested by Datum, so those integrations are choices for users willing to handle their own troubleshooting.

Mobile identity

The Datum ID app for iOS and Android handles storage signup and management of credentials and usage. Datum says the mobile workflow and purchasing additional storage are coming soon, limiting what can currently be managed from a phone.

Pricing

PlanPriceWhat it includes
Free storagefreeOne free terabyte for the first year; 1 TB for the first year
Additional storage$3.99 a monthUS$3.99 per terabyte per month; per terabyte, described as coming soon

The free tier is attractive for a first-year 1 TB allocation, but it is not a permanent free quota. The paid rate is straightforward for users who need more capacity, yet the additional-storage purchase is not currently available, so organizations should not treat the advertised expansion price as an immediately usable plan. There are no published seat limits or trial terms to weigh.

Platforms

Datum supports Android, iOS and an API, with desktop apps through Datum Drive. S3 endpoints also make it suitable for software-based backup workflows. IPFS support is not provided.

Who it's for

Choose Datum if you want a decentralized-storage service with a normal folder interface, S3 automation and encryption keys under your control. It is particularly suited to a one-person or small backup setup using Arq, or to technically comfortable users configuring another S3 client. Look elsewhere if you need immediately purchasable extra capacity, a mature phone-first administration flow or IPFS storage.

Pros and cons

  • Pros: End-to-end encryption with the customer holding the key; a virtual drive plus S3-compatible endpoints; tested Arq Backup compatibility on Mac and Windows; Android and iOS identity apps.
  • Cons: The 1 TB free allowance lasts only the first year; additional storage purchases are coming soon rather than currently usable; several listed backup applications remain untested; email and phone verification are required; no IPFS support.

Alternatives

Sia is the better choice for users who prioritize an open-source project, broader platform coverage including Linux, macOS, Windows, web and self-hosting, and a freemium model with a free plan.

Carbide Network fits users interested in provider earnings and metered storage, with a home-provider option estimating $24 per year per terabyte and personal storage starting at $0.

Peergos is preferable when fully open-source software, reproducible builds and self-hosting matter more than Datum's S3-oriented workflow.

Aleph Cloud (formerly Aleph.im) suits users seeking broader cloud infrastructure, including static website hosting, VPS and API, across desktop and web platforms.

Walrus is an alternative for users evaluating a Mysten Labs-created service with a free launch-period memory plan whose limits and pricing may change.

4EVERLAND is aimed at web users needing an IPFS- and Arweave-focused free tier with monthly storage, build-time and bandwidth quotas.

BNB Greenfield is a choice for API, web or self-hosted deployments priced in BNB, with separate storage and download-quota billing.

Filebase is better for a small object-storage start with a published 5 GB free tier, one bucket and IPFS allowances, or a $7.50-per-month Pro plan.

For more options, browse Decentralized Storage Services.

Verdict

Datum Storage is a sensible pick for users who want a virtual drive and S3 backup access while retaining control of encryption keys. Its main reason to look elsewhere is operational readiness: the free terabyte expires after one year, and buying additional storage and completing the mobile workflow are still pending.

Verdict

Datum Storage combines a virtual drive with S3-compatible access and encryption in which the user holds the key. The free terabyte is limited to the first year, and the listed additional-storage purchase and mobile workflow are not yet available.

Questions

Is Datum Storage free?

Yes. The free plan provides 1 TB for the first year.

How much does additional storage cost?

It is listed at US$3.99 per terabyte per month and is described as coming soon.

Which platforms are listed?

Android, iOS, and API access are listed. Datum also describes Datum Drive as adding a virtual hard disk to a computer.

Which backup software is compatible?

Arq Backup for Mac and Windows is listed as tested. Duplicati, Duplicity, and Duplicacy are named as S3-compatible applications that Datum has not tested.

Who makes Datum Storage?

Datum Network GmbH is the maker, with a registered office in Zug, Switzerland.

Facts from Datum Storage's own pages

API endpoint
SDK initialization supports a network RPC endpoint, default public keys and an optional fueling server. · gettingstarted.datum.org, 15 Oct 2026
API operations
The SDK documents set, get, getWithKey, remove and removeByKey operations plus identity and access-management calls. · gettingstarted.datum.org, 15 Oct 2026
API SDK
Datum publishes a JavaScript SDK installable with npm as datum-sdk. · github.com, 15 Oct 2026
App availability
Datum's main site identifies free Datum ID apps for Android and iOS, but the cited product pages provide no app-store rating counts. · datum.org, 15 Oct 2026
Availability
The product page says the Datum ID mobile workflow and buying additional storage are coming soon. · storage.datum.org, 7 Oct 2026
Availability disclaimer
The terms state that beta or early-access services may be unreliable, can be interrupted and are provided without guarantees against bugs or data loss. · datum.org, 15 Oct 2026
Backup integrations
Arq Backup for Mac and Windows is listed as tested, while Duplicati, Duplicity and Duplicacy are listed as untested. · storage.datum.org, 15 Oct 2026
Company legal name
The terms identify the provider as Datum Network GmbH, registered in Zug, Switzerland. · datum.org, 15 Oct 2026
Company profile
LinkedIn lists Datum as privately held, founded in 2017, headquartered in Zug and employing 11–50 people. · linkedin.com, 15 Oct 2026
Company technology
LinkedIn describes a decentralized distributed NoSQL database backed by an Ethereum smart-contract ledger for private data backups. · linkedin.com, 15 Oct 2026
Connection setup
After account creation, the user receives a URL, a key equivalent to an S3 Access Key ID, and a secret equivalent to an S3 Secret Access Key. · storage.datum.org, 7 Oct 2026
Credential setup
Accounts provide an endpoint URL plus S3-style access key and secret credentials. · storage.datum.org, 15 Oct 2026
Desktop drive
Datum Drive is described as adding a virtual hard disk that behaves like a normal folder. · storage.datum.org, 15 Oct 2026
Developer documentation
Documentation provides getting-started material, API reference, FAQ pages, GitHub code and a developer community link. · gettingstarted.datum.org, 15 Oct 2026
Drive
Datum Drive adds a virtual hard disk to a computer that works like any other folder. · storage.datum.org, 7 Oct 2026
Encryption
The product says stored data is end-to-end encrypted and that the user retains the key. · storage.datum.org, 15 Oct 2026
Funding
CheckThat reports $10.3 million in total funding for Datum Network GmbH, with the latest round in December 2020. · checkthat.ai, 15 Oct 2026
Identity
Storage accounts are attached to a Datum Identity, and creating one requires email and phone verification. · storage.datum.org, 7 Oct 2026
Identity access
Storage accounts are attached to a Datum Identity intended to keep access under the user's control. · storage.datum.org, 15 Oct 2026
Independent company summary
CheckThat describes Datum Network as a blockchain data marketplace combining decentralized storage with personal-data sharing and monetization. · checkthat.ai, 15 Oct 2026
Limit: expansion timing
The product page says the 1 TB allowance covers the first year and that buying additional capacity is still coming soon. · storage.datum.org, 15 Oct 2026
Limit: integrations
Only Arq Backup is marked tested in the setup guide; three other named S3-compatible backup tools remain untested. · storage.datum.org, 15 Oct 2026
Limit: market evidence
CheckThat reports that the lack of enterprise-platform reviews prevents independent assessment of satisfaction, implementation experience and support quality. · checkthat.ai, 15 Oct 2026
Maker and location
The terms identify the maker as Datum Network GmbH and give its registered office as Gotthardstrasse 26, 6300 Zug, Switzerland. · datum.org, 7 Oct 2026

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