Agency client portal software: what to look for before you buy
Short answer: A client portal gives each client one branded place to see briefs, approve work, find files and check results, instead of piecing it together over email. As of October 2026, Assembly, a portal and app builder for agencies, starts free for 5 contacts and runs $29 a month (annual) for its Starter tier covering 50 contacts. SuiteDash, an all-in-one client portal and CRM, prices from $19 a month with unlimited clients and staff on every tier, including its cheapest plan. Accelo, a client work management platform with a built-in portal, doesn't publish fixed prices and quotes based on team size. All three can hold briefs, approvals and files. None of them natively combine that with your actual reporting numbers pulled live from ad and analytics accounts, which is the gap a custom portal usually closes.
You want clients to stop emailing you for status updates and have one place to see briefs, approve work, find files and check their results.
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What should an agency client portal actually hold?
A good client portal for an agency needs to cover more ground than a simple file-sharing folder. Before comparing tools, it's worth listing what a client actually wants to find in one place.
- The brief or scope: What was agreed, so there's no ambiguity when a client asks for "one more small thing."
- Approvals: A clear place to approve or reject a draft, with a timestamp and a record of who signed off.
- Files: Final deliverables and source files, without digging through an email chain from three months ago.
- Live results: Actual numbers, not a screenshot from last month, ideally pulled from the ad or analytics accounts you're running for them.
- Invoices and payment status: Especially for retainer clients who want to check what they're being billed for.
The best agency client portal tools, compared
Assembly
Assembly, a platform that lets agencies build client portals and simple internal apps without writing code, offers a free plan for 5 active contacts and 1 internal user, then a Starter plan at $29 a month (annual) for 50 contacts, and a Professional plan at $99 a month (annual) for 500 contacts with custom domains and API access. Because pricing is based on contact count rather than client count directly, costs can climb quickly for agencies with many stakeholders per client. If that pricing is a problem, see these Assembly client portal alternatives.
- Best for: Agencies that want to build a lightweight custom portal themselves without hiring a developer, and don't mind the per-contact pricing model.
SuiteDash
SuiteDash, an all-in-one platform combining a client portal, CRM and project features aimed at service businesses, is genuinely different from most competitors on pricing: every tier, starting at $19 a month for its START plan, includes unlimited staff, unlimited CRM contacts and unlimited client portals, with no per-seat fees at any level. Higher tiers (THRIVE at $49, PINNACLE at $99) add marketing automation, deal pipelines and a learning management system rather than raising the client or user ceiling.
- Best for: Agencies that want unlimited clients and staff without a bill that grows with headcount, and are comfortable with a somewhat dated interface in exchange for that pricing.
Accelo
Accelo, a client work management platform that combines a CRM, project tracking, billing and a client-facing portal in one system, doesn't publish fixed pricing on its site. Its pricing page states plainly that cost is based on team size and growth goals, with a quote provided after a sales conversation, so budgeting for it means getting on a call rather than reading a price list.
- Best for: Agencies that want capacity forecasting and client profitability analysis built in alongside the portal, and don't mind a sales-led buying process to get there.
How do agency client portal tools compare?
| Tool | Starting price | Client/contact limit at entry tier | Live results pulled from ad/analytics accounts |
|---|---|---|---|
| Assembly | Free, then $29/mo | 5 free, 50 on Starter | No |
| SuiteDash | $19/mo | Unlimited | No |
| Accelo | Custom quote | Based on plan | No |
None of the three pull live numbers from the ad and analytics accounts you're actually running for a client into the same view as briefs and approvals. For that, agencies typically pair one of these with a dedicated client reporting tool, which handles the numbers side, and either link the two or treat them as genuinely separate client touchpoints.
Features worth checking before you buy
Beyond price, a few specific details separate a portal that clients actually use from one that gathers dust after the first month.
- White-label depth: Check whether your logo and colors apply only to the login page, or to every screen a client sees, including email notifications. Assembly and SuiteDash both support custom domains so the portal lives on your own URL rather than a vendor's subdomain, which matters for how professional it reads to a client.
- Mobile access: A client approving a draft from their phone between meetings is common. Check whether the portal works properly in a mobile browser or needs a dedicated app, since a clunky mobile experience is one of the fastest ways a portal stops getting used.
- Notification control: Clients want to know when something needs their attention without being pinged for every internal comment. Look for granular notification settings, not an all-or-nothing toggle.
- Offboarding: Ask what happens to a client's data and access when the engagement ends. A portal that makes it hard to export a client's history reflects badly on you even if the tool itself was fine throughout the relationship.
A worked example, at 15 clients
Say you run 15 clients, each with 2 to 3 stakeholders who need portal access, so roughly 35 to 40 contacts total. On Assembly, that pushes you past the 50-contact Starter tier fairly quickly once you count every stakeholder, meaning most agencies this size land on the $99 a month Professional plan to get enough headroom plus custom domains. On SuiteDash, that same 15-client, 40-contact agency pays the same $19 to $99 a month as an agency with 3 clients, since contacts and clients are unlimited on every tier, the entire pricing model is about which features you need, not how many people you add. Accelo's cost at this size depends entirely on team headcount rather than client count, since its quote is based on your internal team, not your contact list, which makes it harder to estimate without actually getting on a call. Run your real client and stakeholder count through each vendor's own calculator before assuming a price from this guide still holds, since agencies underestimate stakeholder count more often than client count.
When is one branded portal per client worth building?
For a small agency with a handful of clients, a dedicated portal tool like the three above is usually the faster and cheaper path. The case for a custom-built portal, one client at a time or as a single system all your clients log into, gets stronger in a few specific situations. If your agency runs a fairly standard service model across most clients, briefs, approvals, deliverables and reporting that look nearly the same from client to client, a custom portal (here is how to create a client portal for your agency) can combine all of that plus live reporting numbers into one branded page without per-contact fees stacking up as your client count grows. It also makes sense if you've already tried stitching together a portal tool and a separate reporting tool and found the seam between them, logging into two systems, re-explaining status in both, genuinely annoying for both your team and the client. The tradeoff is upfront build cost against an ongoing subscription, which is worth weighing honestly against your actual client count and growth plans, not assumed.
My broader client portal guide covers what a build like this actually involves and what it tends to cost, and my CRM for agencies guide covers the sales-and-delivery side that usually feeds into a portal once a deal is signed. If onboarding a new client into the portal is its own headache, my client onboarding software guide covers that step specifically.
How I'd approach this
For most agencies under about 15 clients, I'd try SuiteDash or Assembly first, since both are genuinely cheap to test against your real workflow before committing further. Where this becomes a custom conversation is once you've outgrown the limits of a generic portal tool, usually the live-reporting gap, or once you want one consistent branded experience across clients without a per-contact bill climbing every time you land a new account. I build that as a connected view into whatever CRM, project and reporting tools you already run, not a replacement for all of them.
Questions people ask
What's the cheapest agency client portal software?
SuiteDash's START plan at $19 a month includes unlimited clients and staff, which makes it the cheapest option by a wide margin for agencies with more than a handful of clients, since Assembly's pricing climbs with contact count.
Can an agency client portal handle multiple users per client?
Yes, all three tools support multiple contacts or stakeholders per client account, though Assembly counts each one against your contact limit, which matters for clients with several people who need access.
Is a client portal the same as a CRM?
No. A CRM, covered in my CRM for agencies guide, tracks your pipeline and client relationship internally. A client portal is the client-facing view, what the client themselves can see and interact with, and SuiteDash and Accelo both bundle a basic CRM alongside their portal.
Do these portals show live campaign results?
Not natively. All three are built around briefs, files, approvals and billing status rather than pulling live numbers from ad or analytics platforms, which is where a dedicated client reporting tool or a custom dashboard fills the gap.
Is there a free agency client portal option?
Assembly offers a genuinely free plan for 5 active contacts and 1 internal user, which is enough to test the concept with a couple of small clients before deciding whether to pay for a higher tier.
Roughly what does a custom client portal cost?
As a broad reference, fixes and finishes start at around $1,500, and new builds start higher, always a fixed price agreed in writing before I start, never an hourly rate. My AI app cost guide explains what actually drives a quote up or down.
Is my agency too small for this?
No. Most of the owners I work with have no tech team at all, that is the whole point. If the smarter move is a cheap software subscription instead of custom software, I will tell you that on the first call, even though it means I do not get paid.