Verdict
An enterprise DAM module within Adobe Experience Manager, for large organizations managing thousands to millions of brand assets across marketing channels.
An open-source, community-governed digital repository platform on Drupal, for libraries, archives, and museums to manage digital collections.
A team file library billed as a flat monthly fee with unlimited users, aimed at organisations where most people only need to download an approved file a few times a month.
An on-prem, cloud or hybrid DAM aimed at likely DACH-region enterprise manufacturers who need to keep data in-house, with a public review record too thin to lean on without running your own trial.
Price published
No
No
Yes
No
Billed on
No public price list; sales quote required for both packages (Prime and Ultimate). Adobe's own on-premise product description sheet lists separate license metrics per component — AEM Assets itself is licensed 'Per Instance', 'Users' are licensed 'Per User', Brand Portal is licensed 'Per Brand Portal User', and Dynamic Media/Personalized Media are licensed by 'Page Views per month' — so billing is multi-metric and only available via custom quote, not a single flat per-user or per-GB rate.
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.
Flat price per account — users are not a billing unit
Quoted per customer
Deployment
Cloud, On-premise
On-premise, Cloud
Cloud
On-premise, Cloud, Hybrid
Free plan
No
No
No
No
Free trial
No
No
Yes
No
Transparency index
Not checked
Not checked
70%
20%
Most common complaint
Not checked
Not checked
Storage ceilings are modest next to enterprise platforms, so large video libraries outgrow the tiers quickly
No prices, though it does name three deployment models including fully managed on-premise