Best Client Portal and Approval Software for Interior Designers (2026)

The best client portal and approval software depends on whether the studio needs a persistent collaboration space or a fast, no-login approval link.

• Mydoma Studio emphasizes a structured, account-based client portal.
• Atelier and Densy use shareable links designed to reduce login friction.
• Studio Designer and Houzz Pro include portals inside broader business platforms.
• DesignFiles emphasizes client-facing presentation and selections.

The critical test is what the approval record preserves: the item or document shown, the decision, the date, the approver’s identity, comments, and—where required—the exact version reviewed.

An approval is a receipt, not a status

Most software treats client approval as a state change — a field that flips from pending to approved. That is a project management way of thinking about it, and it misses what an approval actually is in a design practice.

An approval is evidence. Its value shows up months later, when a client says the sofa is the wrong colour, or that they never agreed to a £4,000 light fitting, or that the schedule they signed did not include the shipping. At that moment you need to produce three facts together:

1. Who approved it
2. When they approved it
3. What exactly they were looking at when they did

That third one is where most tools quietly fall short. A status field says the item was approved. It does not say the item was approved at £3,200 in the walnut finish with an eight-week lead time, which is the version the argument is actually about. If the record does not pin to a version, it is not a receipt — it is a claim.

So the first question to ask any portal is not what it looks like. It is: when something is approved, what is preserved?

The two portal philosophies

Products in this category split cleanly, and the split predicts most of the rest.

Account-based portals give the client a login and a space of their own — a structured place to see decisions, respond, and track progress. Richer, more capable, and better suited to long projects with a lot of back-and-forth. Mydoma is the strongest example.

The cost is a signup step, and signup steps leak. A meaningful share of clients never complete one. Chasing them turns a two-minute approval into a week of reminders, and the client who is least likely to log in is frequently the one whose sign-off you most need in writing.

Link-based approval sends a live URL. No account, no password, no app. The client clicks, sees the current state of the work, comments and signs off. Atelier and Densy both work this way.

The cost is less structure. There is no persistent client-owned space accumulating project history, which some studios genuinely want, particularly on year-long projects with committees.

Neither is right in general. Ask honestly how your clients behave. If they are engaged professionals who will happily maintain a login, the account model gives more. If they are busy homeowners who reply to texts at 11pm and have never once found an email you sent them twice, the link model will get you approvals you would otherwise still be chasing.

Compared

Tool	Client model	Approval record	What to verify
Mydoma Studio	Account-based portal	Structured client workflow	Version history, onboarding, and client adoption
Atelier	No-login live link	Current per-item decision and comments	Approver identity and version snapshot limitations
Densy	Shareable link	Link-based review and approval	Version history and procurement depth
Studio Designer	Portal inside an accounting-led platform	Connected to broader financial workflow	Client experience and approval evidence
Houzz Pro	Portal inside a broad business suite	Platform-specific approval workflow	FF&E depth and version evidence
DesignFiles	Client-facing presentation workflow	Selection review and feedback	Procurement connection and approval history

Mydoma Studio

Its client portal is its defining strength and the most developed in the category as a collaboration workflow — not merely a viewing area but a structured process for moving a client through decisions, with a clear place to review selections and respond.

Studios with a repeatable methodology, or clients who need shepherding, get real value from that structure. Verify current Mydoma plan, onboarding, and cancellation terms directly with the vendor.

Atelier

Our product, so weigh accordingly. Built for interior designers and architects, it takes the link approach deliberately and applies it across everything rather than to boards alone.

One link shares live pinboards, FF&E schedules, proposals and invoices — no logins, no attachments, no “see version 7 in the thread below.” Clients comment directly on the board or the individual schedule line, and approve or decline each item individually, so both the feedback and the decision arrive attached to the thing they are about. Shared links always show the current state of the work, so updating a board updates what the client sees rather than leaving a stale PDF in their inbox.

Where it does not yet meet the standard set above: Atelier records the current decision on each item, not a snapshot of the version that decision was made against, and a share link is not tied to a named individual. For contractual evidence, the issued proposal is the document to keep. On the receipt test specifically, the account-based portals are ahead.

Atelier uses per-seat pricing. Verify current plan details on the Atelier pricing page. It does not provide a persistent client-owned portal in the Mydoma sense and does not replace general ledger accounting.

Densy

Also link-based, with no client account required, and the same practical benefit: nobody has to log in. Verify current Densy plan limits directly with the vendor when testing whether link-based approval suits your clients. Lighter on procurement and financial depth than the platforms above.

Studio Designer and Houzz Pro

Both include client portals inside larger platforms. Studio Designer connects its portal to an accounting-led platform, while Houzz Pro includes client collaboration inside a broader suite that also covers business development. Evaluate the approval record itself rather than assuming every portal preserves the same evidence.

What to check before buying

Four questions, in order of how much trouble they save you.

When something is approved, what is preserved? Ask to see an approval record from six weeks ago on work that has since changed. If the tool shows you the current version rather than the approved one, it is not keeping a receipt.

Where do comments land? On the specific board item or schedule line, or in a general thread? Context-attached comments remove an entire class of confusion about which sofa “the blue one” means.

Does the client see live work or an export? If sharing produces a PDF, every change requires a re-send, and the version drift you were trying to escape comes straight back.

What is your clients’ actual signup completion rate? Not the vendor’s — yours. If you have used an account portal before, you already know this number, and it should probably decide the question for you.

Disclosure: Atelier is our product. This article states plainly that Mydoma offers a more established persistent portal model and that Atelier currently records the current per-item decision rather than a version snapshot. Features and pricing change frequently; verify current details with each vendor.

Atelier is free to try, no credit card. Start a project and send yourself an approval link to see what it records.