Verdict
An open-source PHP/Symfony platform unifying PIM, DAM, CMS and MDM on one codebase, for teams with in-house developers or an integrator partner rather than a marketing team wanting to self-serve.
A cloud portfolio and image-storage platform for individual photographers, with client galleries and built-in print/licensing sales.
An enterprise headless CMS and composable DXP for developer-led teams needing multi-channel content delivery, with a native asset-management module that's newer and thinly reviewed.
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
Annual licence per edition, not per user
Quote-only. Priced per named "Library Seat" (2-5 seats depending on tier, custom for Enterprise) plus a storage allotment per tier (1TB-5TB, custom for Enterprise) and a cap on "Advanced Integrations" (0 to unlimited). Unlimited invited/contributor users and unlimited Social Content Publisher seats included on all/most tiers. Annual or monthly billing toggle shown on the pricing page, but no dollar amounts are published — all tiers show a "Get Pricing" CTA to a demo/sales call.
Quoted per customer
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, Cloud
Cloud
Cloud
On-premise, Cloud
Free plan
Yes
No
Yes
No
Free trial
No
No
No
No
Transparency index
100%
Not checked
30%
Not checked
Most common complaint
It is a broader platform than a DAM — some capability has to be built rather than switched on
Not checked
A free start exists, but the terms for moving to a paid tier are not on the page
Not checked