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digiKam, Portfolio, NetX, Islandora

Side by side on what we have verified on each vendor’s own pages. Where a fact was not checked, the table says so rather than leaving a blank that reads as “no”.

What decides it · Publishes a price

One of these tells you the order of magnitude before you speak to anyone, and the others do not. That difference sets how long your evaluation takes, whatever the software does.

digiKam

Yes

Portfolio

No

NetX

No

Islandora

No

Everything else

digiKam
Portfolio
NetX
Islandora
Verdict
Free, open-source, cross-platform photo cataloging software for large RAW libraries, with tagging, geotagging and duplicate detection, meant to pair with a separate RAW editor.
An on-premise DAM known for deep metadata and search, for existing Portfolio users who size and maintain their own server, now under Axle AI ownership after a March 2026 acquisition.
A digital asset management platform for enterprises, agencies, museums, and nonprofits, paired with in-house consulting and data-migration services.
An open-source, community-governed digital repository platform on Drupal, for libraries, archives, and museums to manage digital collections.
Price published
Yes
No
No
No
Billed on
Free software, no licence fee
Quoted per customer; the licensing model was preserved through the change of owner
Not disclosed publicly. Plans are differentiated by number of admin users, storage (TB), and number of portals (e.g. Essential: 5 admin users/1TB; Signature: 20 admin users/2TB/3 portals; Premium: 50 admin users/5TB/5 portals); exact per-unit or per-tier prices are not published, visitors must request a consult.
No published price on islandora.ca — the core software is free open source ("free to use and always will be"). Paid options are hosting/installation/migration/support/training contracts sold by independent third-party service providers listed on islandora.ca/service-providers (e.g. Born-Digital, discoverygarden); islandora.ca itself does not publish their rates or billing units.
Deployment
On-premise
On-premise
Cloud, On-premise, Hybrid
On-premise, Cloud
Free plan
Yes
No
No
No
Free trial
No
No
No
No
Transparency index
100%
25%
Not checked
Not checked
Most common complaint
It has no collaboration, permissions or approvals by design
It changed hands in March 2026, so anything written before that date describes it as an Extensis product
Not checked
Not checked

“Not checked” means exactly that: we have not verified it, not that the platform lacks it. Every other value was read off the vendor’s own pages on the date shown on each platform page.

What to ask on the demo

One question per platform, drawn from what actually goes wrong with it — not a generic checklist. Vendors run the demo; this hands the agenda back to you.

digiKam It has no collaboration, permissions or approvals by design — ask them to answer this in writing before the trial.
Portfolio It changed hands in March 2026, so anything written before that date describes it as an Extensis product — ask them to answer this in writing before the trial.

No email required — the page prints as it stands.