knack.com/blog/top-client-portal-software-guide

For **custom client portals**, the strongest options are **Zoho Creator**, **Knack**, **Airtable**, and **SuiteDash**; for **internal dashboards**, **ClickUp**, **Notion**, **Airtable**, and **SuiteDash** are the most flexible picks from the results.[4][8][1][2] - **Zoho Creator** is the best fit when you want a **true low-code app builder** for tailored workflows, forms, and dashboards.[4][6] - **Knack** is a strong no-code choice for businesses that want to build **custom client portals without heavy coding**.[8] - **Airtable** works well for **data-driven portals** and internal operational dashboards built on structured bases.[1] - **SuiteDash** is a good all-in-one option for **customizable dashboards**, especially for agencies that want portals, white labeling, and client management in one place.[2][5] - **ClickUp** is useful if you want an **internal dashboard plus client-facing project management** in the same workspace.[1] - **Notion** is best when the portal is mostly **content, docs, knowledge bases, and simple collaboration** rather than complex app logic.[1] - **Clinked** is a strong choice if your priority is **white-label client collaboration and secure file sharing**.[1][5] - **Zendesk** is best when the portal is primarily for **support, ticketing, and customer self-service** rather than custom workflows.[4][7] If you want the **best overall platform by use case**, I’d narrow it like this: | Use case | Best platforms | |---|---| | Custom client portal with workflows | **Zoho Creator**, **Knack** | | Data-heavy internal dashboard | **Airtable**, **ClickUp** | | Agency portal with branding | **SuiteDash**, **Clinked** | | Simple client collaboration | **Basecamp**, **Notion** | | Support portal / help center | **Zendesk** | If you want, I can also give you a **shortlist by budget**, **by no-code vs low-code**, or **by agency vs professional services firm**.