Assembly vs FuseBase
Assembly
assembly.com
FuseBase
thefusebase.comSide by side
| Figure | Assembly | FuseBase |
|---|---|---|
| Price from | $29/mo | $32/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 5 | 8 |
| Spec score · Customer Portal Software | 9.3 (#1) | 9.2 (#2) |
| Compliance | Assembly says its platform is SOC 2 Type II certified and offers HIPAA support with a BAA on the Advanced plan; AI features are not covered by HIPAA support. | The official site displays SOC 2 Type II and HIPAA compliance claims. |
| Documentation | The documentation includes getting-started guides, built-in app references, custom-app building, API reference, MCP and support sections. | The official guide library reports 275 guides across 18 topics, including portals, databases, AI, automation, mobile apps, imports and developer setup. |
| Integrations | Assembly supports embedded third-party tools and connects to more than 1,000 apps through Zapier, Make and similar no-code services. | Documented integration methods include Google Drive file transfer, Fireflies transcript retrieval, HubSpot-triggered portal creation and inbound webhooks. |
| Notable news | Assembly launched its AI app builder on August 13, 2026, with more than 20 tested apps and platform-managed security boundaries. | The official guide library lists FuseBase Sites as published on October 12, 2026 and several CLI, MCP and FuseBase Work guides released in August–September 2026. |
| Product | Assembly combines an AI app builder with a CRM and branded client experience for building client-facing apps and internal tools. | FuseBase is an all-in-one client collaboration platform with project-management elements for service businesses. |
| Rating on Capterra | 4.8 out of 5 from 35 reviews for the client-portal listing. | 4.7 out of 5 from 177 reviews. |
| Rating on G2 | 4.7 out of 5 from 344 reviews. | 4.7 out of 5 from 113 reviews. |
| Support | Support ranges from community support on Free to email support on Starter and priority email support on Professional and Advanced. | FuseBase says it has a dedicated implementation team that can set everything up for customers. |
| What it does | Assembly combines CRM, a branded client portal, ready-made workflow apps and an AI app builder for professional-service firms. | FuseBase is an AI-powered client portal and collaboration platform linking internal workspaces, client delivery, apps, workflows and external tools. |
Plans
Assembly
- FreeFree
- Starter$29 a month
- Professional$99 a month
- Advanced$499 a month
- EnterprisePriced on request
FuseBase
- Free ForeverFree
- Solo$32 a month
- Solo$32 a month
- Essentials$82 a month
- Essentials$82 a month
- Advanced$266 a month
- Advanced$332 a month
- UnlimitedPriced on request
In their own words
Assembly
Assembly combines an AI app builder with a CRM and branded client experience for creating client-facing apps and internal tools. Users describe an app in plain language, review a proposed plan, publish it, and refine it in conversation. More than 30 templates cover workflows such as document collection, project tracking, proposals, and client support. Apps can connect to third-party services through authentication or an API key, and an MCP connector links the workspace to AI tools including ChatGPT and Claude. Workspaces include a branded client experience where published apps appear together. Assembly's platform handles client authentication, roles, permissions, and data scoping. The maker says it is SOC 2 Type II certified, stores customer data in the United States, encrypts it in transit with TLS and at rest with AES-256, and does not use workspace or client data to train AI models. It is not suited to public-facing websites, directories, or consumer apps. A free plan is available; Starter costs $29/mo billed annually.
FuseBase
FuseBase combines client collaboration and project-management features for service businesses. Its branded client, partner, and vendor portals support file sharing, forms, surveys, chat, and client analytics. Teams can manage work with task lists, Kanban and calendar views, reminders, tags, comment feeds, milestones, and dashboards. AI agents can answer questions, take actions, and automate tasks across internal and external workspaces. FuseBase lists integrations including Google Calendar, Zapier, ClickUp, Figma, HubSpot, Asana, Google Drive, and Adobe, and says its portals support over 2,000 integrations. Security features include role-based access, granular permissions, secure magic links, SSO, 2FA, and encryption. Its free plan costs nothing and includes one client portal, one workspace, a powerful editor, unlimited nested folders, shared pages, and an AI Test Drive; separate free-plan limits include up to 20 team members, 20 AI prompts, and 20 automation runs. Solo costs $32 a month, Essentials $82 a month, and Advanced $332 a month. Solo, Essentials, and Advanced show a 14-day trial. FuseBase is available on Android, iOS, macOS, Windows, and web, with API and browser-extension options.