Verdict
A file upload, transformation, and delivery API with a drop-in picker for 20+ sources, for developers adding file handling to web and mobile apps.
An open-source, community-governed digital repository platform on Drupal, for libraries, archives, and museums to manage digital collections.
A modular, metadata-heavy DAM aimed at large organisations with IT capacity to manage taxonomy, sold through quote-based pricing with on-prem and private-cloud options.
An open-licence, self-hosted DAM for teams with in-house server admin capability, trading a free licence for the time to run upgrades, tune dependencies and troubleshoot it themselves.
Price published
Yes
No
No
No
Billed on
Monthly subscription tiers with bundled resource allowances (bandwidth in GB, uploads counted per file, transformations per file/image operation, storage in GB, number of team members), plus per-unit overage fees once a tier's allowance is exceeded (e.g. Start plan overage is $0.2/GB bandwidth).
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.
A modular model — you pay for the modules you take
Self-hosted: no licence fee. Hosted: a user ceiling per tier
Deployment
Cloud
On-premise, Cloud
Cloud
Cloud, On-premise
Free plan
No
No
No
Yes
Free trial
No
No
No
No
Transparency index
Not checked
Not checked
10%
60%
Most common complaint
Not checked
Not checked
The pricing page works as a lead form rather than a price list
The free route is genuinely free of licence fees but moves hosting, upgrades and support onto you