Stack9
Stack9 combines Stack9 Core, a configurable application development platform, with Stack9 Experience, a digital experience platform for content, marketing, a…
What Stack9 is
Stack9 combines Stack9 Core, a configurable application development platform, with Stack9 Experience, a digital experience platform for content, marketing, and AI. Core generates PostgreSQL schemas, REST APIs, screens, and workflows from JSON-defined entities. Experience provides headless content management, marketing automation, customer data profiles, email, forms, analytics, AI personalization, journey orchestration, and digital asset support. Reusable connectors support REST, direct database connections, and other protocols, including links with FINEOS, identity platforms, ERP, CRM, and finance systems. Form submissions can use queued webhooks with automatic retries, while query-library queries and automations can be exposed to AI agents through MCP. Stack9 documents more than 100 REST endpoints with OpenAPI 3.0 and supports API keys or OpenID Connect. Core is delivered as a Docker image for AWS, hybrid, self-hosted, or multi-tenant SaaS deployment; Azure is technically supported with performance trade-offs. Data is encrypted in transit and at rest, with isolated databases and role-based and row-level controls.
Good
- Generates schemas, APIs, screens, and workflows
- Headless content and marketing capabilities
- Queued webhooks with automatic retries
- More than 100 documented REST endpoints
- Hybrid, self-hosted, and SaaS deployment options
Watch out
- Pricing is available only by quote
- No free plan
- Azure support has performance trade-offs
- Stack9 itself is not SOC 2 certified
Who it suits
Stack9 suits government and enterprise organisations building portals, internal tools, and digital experiences. It is relevant to teams wanting configurable low-code development with hybrid or self-hosted deployment.
Verdict
Stack9 links application development with content, marketing, analytics, and AI personalization. Its deployment flexibility and API coverage are useful for complex organisations, while pricing and support tiers require a direct quote.
Plans and prices
From Stack9's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Stack9 | Priced on request | Fixed per instance · hosting charged at cost by usage · email and communications charged by usage · support tiered by severity |
The facts
Each one read from Stack9's own pages, with the date it was checked.
What it does
- API
- The platform documents more than 100 REST endpoints using OpenAPI 3.0 and supports API keys or OpenID Connect.checked 8 Oct 2026
- Compliance
- April9 says it holds ISO 27001 certification; it states Stack9 itself is not SOC 2 certified and that IRAP applies to a specific engagement, not the product.checked 8 Oct 2026
- Core features
- Stack9 generates PostgreSQL schemas, REST APIs, screens and workflows from JSON-defined entities.checked 8 Oct 2026
- Data residency
- The maker states production, metadata, logs and AI processing run in Australian AWS regions, with backups and disaster recovery replication in Melbourne.checked 8 Oct 2026
- Deployment
- Stack9 Core is delivered as a Docker image and supports AWS deployments, a hybrid or self-hosted model, and multi-tenant SaaS; Azure is technically supported with performance trade-offs.checked 8 Oct 2026
- Experience features
- Stack9 Experience includes headless content management, marketing automation, customer data profiles, email, forms, analytics and AI personalization.checked 8 Oct 2026
- Integrations
- Stack9 supports reusable connectors for REST, direct database connections and other protocols, and describes use with systems including FINEOS, identity platforms, ERP, CRM and finance systems.checked 8 Oct 2026
- Pricing limit
- The maker does not publish a price list and asks prospective customers to request a quote based on instance count, environments, integrations and support tier.checked 8 Oct 2026
- Product
- Stack9 combines a configurable application development platform, Stack9 Core, with Stack9 Experience, a digital experience platform for content, marketing and AI.checked 8 Oct 2026
- Security
- The maker says data is encrypted at rest and in transit, databases are isolated in private network subnets, and access is governed by role-based and row-level controls.checked 8 Oct 2026
- Support
- Stack9 support is delivered by April9’s onshore Australian team, with a base package described as SLA-backed and tiered by severity.checked 8 Oct 2026
- Webhooks and agents
- Form submissions can be sent through queued webhooks with automatic retries, and query-library queries and automations can be exposed to AI agents through MCP.checked 8 Oct 2026
- Who it serves
- April9 describes Stack9 as a configurable low-code platform for organisations building portals, internal tools and digital experiences, including government and enterprise clients.checked 8 Oct 2026
The company
- Headquarters
- Brisbane, Queensland, Australiachecked 28 Sep 2026
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