Give Plumsail its due first
Plumsail Forms is an established SharePoint form designer with a public forms option too, and plenty of teams run it happily. If you already use it and it fits, there is no reason to move for the sake of it. A comparison is only useful when something specific is pushing you to look, so the honest question is what that something is.
Where Forms 365 is different
It is Australian-built and supported
Forms 365 is built and supported in Australia, by DevPros on the Gold Coast and in Brisbane. For an Australian organisation that cares about support in its own time zone and dealing with a local team, that is a real difference from a global vendor.
Your data stays in your tenant
Submissions write into a SharePoint list in your own Microsoft 365 tenant, alongside the rest of your SharePoint data. That keeps the data-residency conversation simple: the form records live where your SharePoint data already does.
AI helps you build the form
Forms 365 includes AI-assisted form generation. Describe the form you need, or start from an existing document, and it drafts the fields and sensible types for you to refine. It is a genuine head start when you are staring at a blank canvas, and you stay in control of the result.
One platform for both internal and public forms
Forms 365 is one platform for two jobs: Forms 365 Workspace for the internal SharePoint list form your staff use, and Forms 365 Web for public forms that anyone can submit with no Microsoft account. Both write to SharePoint, so you are not buying and stitching together two separate products.
Who should pick which
Stay with Plumsail if it already does what you need and you have no reason to move. Look hard at Forms 365 if you want a local Australian team behind the product, you want the reassurance that form data sits in your own tenant, you would use AI to get forms drafted faster, or you like the idea of one platform covering both internal and public forms. Try it against a real form of your own before deciding; that tells you more than any comparison page can.
Try it against one of your forms.
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Common questions
Is Forms 365 a good alternative to Plumsail Forms?
It is worth a look if the things that matter to you are Australian support and data residency, and AI-assisted form generation. Plumsail is a mature, capable product; Forms 365 competes on those specific points and on covering both internal SharePoint forms and public web forms in one platform.
Where does Forms 365 keep my form data?
Submissions are written into a SharePoint list in your own Microsoft 365 tenant, alongside the rest of your SharePoint data.
Does Forms 365 do both internal and public forms?
Yes. Forms 365 Workspace replaces the internal SharePoint list form for signed-in staff, and Forms 365 Web publishes public forms that anyone can submit with no Microsoft account, both writing to SharePoint.