Islandora, Plytix, Contentstack, Brandworkz

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 · Runs on your own servers

If the files genuinely cannot leave your infrastructure, this is not a close race — the platforms marked No below should not be on the call at all.

Islandora

Yes

Plytix

Contentstack

Brandworkz

Everything else

Islandora

Plytix

Contentstack

Brandworkz

Verdict

An open-source, community-governed digital repository platform on Drupal, for libraries, archives, and museums to manage digital collections.

A combined PIM and DAM platform for managing product data and media, built for SMB and mid-market ecommerce brands, manufacturers, and agencies.

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.

A brand-guidelines and asset portal for mid-market marketing teams, with a genuine free tier that covers a branded guidelines page but not the full asset library or workflow tools.

Price published

Yes

Billed on

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.

Tiered plans priced by SKU (product) count, not by user seat — all plans include unlimited user seats. Each tier also caps monthly AI credits, API calls/hour, and DAM file storage + CDN traffic (GB/month). Standard is free (500 SKUs, 50GB storage); Pro is $499/mo (50,000 SKUs, 750GB storage); Enterprise is custom/quote-only (unlimited SKUs, custom storage). Optional flat-fee add-ons (Product Feeds $300/mo, Brand Portals $300/mo, Product Data Sheets $200/mo) and one-time onboarding fees ($0 / $3,000 / custom).

Quoted per customer

Number of users and the tier selected

Deployment

On-premise, Cloud

Cloud

Free plan

Yes

Free trial

Transparency index

Not checked

30%

40%

Most common complaint

Not checked

A free start exists, but the terms for moving to a paid tier are not on the page

The free tier is named while the cost of the next step is not

“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.

Contentstack A free start exists, but the terms for moving to a paid tier are not on the page — ask them to answer this in writing before the trial.

Brandworkz The free tier is named while the cost of the next step is not — ask them to answer this in writing before the trial.

No email required — the page prints as it stands.