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Duplicacy Forum Review

Depends

Should I use Duplicacy Forum?

A place for Duplicacy users and developers - forum.duplicacy.com

· 1 month ago

This URL is Duplicacy's community forum, not a product page — the product behind it is Duplicacy backup software. Buy if you're technical and want deduplicated cloud backups; skip if you want simple, set-and-forget backup.

Confidence

Medium. Based on 30+ public sources. The reviewed URL is a community forum, so findings reflect user discussions more than vendor marketing pages.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support quality
  • Security posture

Pricing

$20 first, $10 second

Personal GUI license

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Commercial licenseNot stated in sources

Best for

  • Technical homelab users
  • Dedup-heavy cloud backups
  • CLI-comfortable power users
  • Data hoarders with cheap object storage

Not for

  • Non-technical users wanting set-and-forget backup
  • Anyone avoiding forum troubleshooting and CLI work
  • Buyers sensitive to surprise cloud API fees
  • Teams needing vendor SLAs and guaranteed maintenance

Gotchas - check before you buy

high

Chunked backups multiply cloud API operations; one user's bill hit $122 in a month

high

Repeated 'is it dead?' threads suggest uncertain maintenance pace; check recent commits first

medium

License pricing confusion; forum users report pricing-page vs checkout mismatches

low

Lifetime licenses appear only during limited Black Friday windows

Pros and cons

Pros

  • Cheap personal licenses: $20 first, $10 for the second
  • Large, active community forum with 56+ pages of support threads
  • Third-party guides praise forum comments as helpful for setup
  • Lifetime personal licenses occasionally offered during Black Friday sales
  • Developer links GitHub PRs and issues into forum discussions

Cons

  • Recurring threads ask whether the project is dead or unmaintained
  • User reported a $122 cloud bill in one month
  • Resume support limited, per user reports on Reddit
  • No dedicated security page found on the site

Sources & method

- 13 sources - No known vulnerabilities found in the sources reviewed.

official x3review x6security x3news x1

Key stats

  • Value for money: 3/5

    Rating

  • $20 first, $10 second

    Starting price

  • 13

    Sources

  • Analyzed

  • Value for money: 3/5. Cheap licenses, but cloud API fees can dwarf them
  • Ease of use: 3/5. Users lean on forum and CLI for setup
  • Feature depth: 4/5. Guess: strong dedup engine; resume gaps reported
  • Support quality: 3/5. Active forum, but maintenance doubts persist
  • Security posture: 4/5. Zero-knowledge design discussed; no public vulns found
  • $20 First license personal GUI license, per forum
  • $10 Second license per same forum thread
  • $122 Reported cloud bill one user's single month of API fees
  • 56+ pages Support backlog of support threads on the forum

Pricing

Personal GUI license

$20 first, $10 second

  • Web GUI
  • Personal use
  • Cloud storage costs billed separately by provider

Commercial license

Not stated in sources

  • Business use
  • Yearly cost discussed but no numbers in sources

Security

No known vulnerabilities found in the sources reviewed.

Full analysis

Based on 30+ public sources. The reviewed URL is a community forum, so findings reflect user discussions more than vendor marketing pages.

This is Duplicacy's user forum, not a product page. Good dedup backup for techies; too fiddly for casuals.

Methodology

Based on 30+ public sources. The reviewed URL is a community forum, so findings reflect user discussions more than vendor marketing pages.

Read how a report is made.

Sources

  1. Duplicacy Forum (home)forum.duplicacy.com
    official
  2. Trying to buy second personal GUI license. Price is still $20?forum.duplicacy.com
    review
  3. Duplicacy caused me $122 USD of cloud storage cost (file operations) in just 1 monthforum.duplicacy.com
    review
  4. Is Duplicacy no longer maintained?forum.duplicacy.com
    review
  5. Is this project dead?forum.duplicacy.com
    review
  6. Website updates and pricing/licensing changesforum.duplicacy.com
    official
  7. 2023 Black Friday Offer: Lifetime Personal Licenses (ended)forum.duplicacy.com
    official
  8. How secure is duplicacy?forum.duplicacy.com
    security
  9. Duplicacy really zero knowledge? In the meaning of securityforum.duplicacy.com
    security
  10. Security pageforum.duplicacy.com
    security
  11. Backup Your Data to Backblaze B2 with Duplicacy from a Proxmox LXC containerhomenetworkguy.com
    news
  12. r/synology — any Duplicacy users have any comments on these?reddit.com
    review
  13. Does Duplicacy support resume? : r/DataHoarderreddit.com
    review

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