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It's a split decision.
Choose Contentful for its broader free-tier user allowance, content platform and named ecosystem for ecommerce and AI integrations. Choose Contentstack if you want a lower-cost paid entry point, explicit API call tiers and front-end hosting bundled with its cloud CMS. Both offer free plans and developer documentation. Neither comparison establishes an advantage in SDKs, self-hosting or data portability, so confirm those requirements with the vendors before committing.
01Side by side
| Contentful | Contentstack | |
|---|---|---|
| Pricing model | Lite $300/month; Enterprise and personalization pricing not published | Build $29/month; Growth $299/month; Enterprise custom |
| Free tier | 10 users; 100K API calls; 50 GB CDN bandwidth | 3 users; 100K API calls; 100 GB bandwidth |
| API and SDKs | Flexible APIs; SDK and language details not listed | API-first CMS; SDK and language details not listed |
| CLI and docs | Developer documentation, blog and changelog | Docs, learning space and product updates |
| Integrations | Marketplace and ecosystem for ecommerce, AI and other tools | CMS, CDP, AI and real-time journey orchestration |
| Deployment model | Digital experience platform; delivery model not detailed | Cloud CMS with front-end hosting; updates deploy without DevOps |
| Platforms | Web | Web |
| Limits and scaling | Free: 100K API calls; Enterprise: unlimited API calls | Free: 100K; Build: 250K; Growth: 1M monthly API calls |
Contentful Choose Contentful if
- Choose Contentful if you need more free-tier users.
- Choose Contentful if its marketplace fits your integrations.
- Choose Contentful if you need modular content across channels.
Contentstack Choose Contentstack if
- Choose Contentstack if you want a $29 paid entry plan.
- Choose Contentstack if bundled front-end hosting fits your deployment.
- Choose Contentstack if its API-call tiers match your workload.
02Pricing at real usage
Both platforms have free plans. Contentful includes 10 users, 100K API calls per month and 50 GB of CDN bandwidth; Contentstack includes 3 users, 100K calls and 100 GB of bandwidth, plus limits on stacks, content types, entries and assets. Their free plans trade different resources, so check which caps matter to your project.
For paid entry, Contentstack Build is $29 per month, with 250K API calls and 250 GB of bandwidth. Build overages are pay-as-you-go, but the rates are not published. Growth is $299 per month and includes 1M calls; additional users cost $25 per user per month. Contentful Lite is $300 per month, with 1M calls and 100 GB of bandwidth. Enterprise pricing is custom for both. Contentful lists unlimited API calls on Enterprise; personalization plan prices and upgrade costs are not published.
03API, SDKs and integration
Contentful provides APIs and an ecosystem of integrations, including a Marketplace for apps. The vendor describes connections to ecommerce, AI and other tools, and its developer site links to documentation, a developer blog and a changelog. Its content model emphasizes reusable components across channels, brands and regions. The listed pages do not identify language-specific SDKs or a CLI, so confirm supported client libraries and tooling for your stack before implementation.
Contentstack calls its CMS API-first and combines it with a CDP, AI agents and real-time journey orchestration. Its platform also includes asset management and front-end hosting. Developer resources include documentation, a learning space, a Marketplace, community and product updates. The vendor pages do not identify language-specific SDKs or a CLI here either. Neither vendor names an API protocol in these descriptions. Check the current API and SDK documentation for protocol, client-library and authentication details, and validate that the integrations you need are available for your stack.
04Open source, self-hosting and lock-in
Neither vendor states an open-source licence or self-hosting option on the product pages reviewed. Contentstack describes its CMS as cloud-based and includes front-end hosting; Contentful presents a platform with APIs and integrations. Treat both as hosted-service decisions unless the vendors confirm another deployment model.
The vendors do not publish data-export terms in the cited product details. Before committing, ask how to export content, assets, customer profiles and personalization data, and whether exports retain IDs, relationships and metadata. Migration effort will depend on how closely your content models, integrations and delivery code map to the destination platform. For a production evaluation, include an exit plan: test a representative export, document API dependencies and clarify contract terms for data access and transition support.
Questions people ask
Which is cheaper, Contentful or Contentstack?
Contentstack has the lower listed paid entry price: Build is $29 per month, compared with Contentful Lite at $300 per month. Growth costs $299 per month. Compare included users, API calls, bandwidth and content limits before treating the lower entry price as the lower cost at your workload.
Does Contentful or Contentstack offer a free plan?
Both offer free plans. Contentful lists 10 users, 100K API calls per month and 50 GB of CDN bandwidth. Contentstack lists 3 users, 100K API calls and 100 GB of bandwidth, with additional limits on stacks, content types, entries and assets.
Can I self-host Contentful or Contentstack?
The vendors do not state a self-hosting option on the product pages reviewed. Contentstack describes its CMS as cloud-based. If your deployment requires running the CMS in your own infrastructure, ask both vendors to confirm availability and any applicable licence or contract terms.
Which platform includes front-end hosting?
Contentstack lists front-end hosting as part of its platform and says content updates deploy without DevOps. Contentful’s product pages describe a content and digital experience platform with APIs and integrations, but do not detail an equivalent hosting offer.