ClientLoop
Compare · verified July 2026

The simple Assembly alternative.

Assembly (formerly Copilot) — ai-powered all-in-one portal for tech-enabled service firms,from $39/mo (annual). Here's how it compares to ClientLoop, honestly.

Choose Assembly if…

  • Most design-polished portal in the category (4.8/5 on G2)
  • Genuinely all-in-one: billing, contracts, files, forms, messaging, CRM
  • Passwordless magic-link login for clients
  • App store, embeds, API, Zapier and Make

Best for: Firms that want a premium all-in-one back office and will pay for the polish.

Choose ClientLoop if…

  • 14-day free trial on Essentials, Pro and Scale
  • Pro is £69/month — unlimited clients, flat per workspace
  • Clients use magic links — never passwords
  • Documents & forms on every plan; Packs & request templates from Essentials
  • Automatic reminders, recurring requests & CSV import from Essentials
  • Your logo & colours on every plan; custom domain from Essentials

14-day free trial · plans from £35/mo, flat per workspace

Assembly is an impressive all-in-one — and priced like one. If what you actually need is documents and forms collected under your own brand, ClientLoop does that at a flat price per workspace: a custom domain from £35/month on Essentials, and the API from £69/month on Pro.

So which one should you pick?

Stay with Assembly if…

Assembly is genuinely all-in-one: billing, contracts, messaging and a light CRM alongside the portal, and the most design-polished front end in the category. If you are consolidating three or four subscriptions into one back office and the budget is there, that breadth is worth paying for. ClientLoop does not replace it.

Move to ClientLoop if…

The line that decides it is usually your own domain. Assembly puts custom domain and API access on Professional at $149/mo annual, and only drops the “Powered by Assembly” mark on Advanced at $399/mo. If your portal has to live on your own domain, that is the real price of Assembly — not the $39 entry tier.

Pricing, side by side.

Assembly

PlanPriceNotes
Starter$39/mo annual · $59 monthly1 user, 50 clients, 100 automations/mo
Professional$149/mo annual · $189 monthlycustom domain & API start here
Advanced$399/mo annual · $499 monthlyremoves “Powered by Assembly”, HIPAA BAA
Enterprisefrom $2,000/moSSO, sandbox, success manager

ClientLoop

PlanPriceNotes
Essentials£35/mo100 active clients, custom domain, reminders
Pro£69/mounlimited clients, API & webhooks, AI document checks
Scale£149/mo15 team members, 500 GB, 3,000 AI-checked pages a month
EnterpriseCustomcontact sales

Assembly prices verified on assembly.com in July 2026 — always check their pricing page for current figures. ClientLoop prices exclude VAT and are per workspace, not per user, with unlimited requests on every plan. Essentials, Pro and Scale each start with a 14-day free trial. Annual billing is two months free; extra team seats are £10/month and +100 GB storage £12/month.

What reviewers flag about Assembly.

  • Limited portal customization is the top G2 dislike (~47 mentions)
  • Custom domain and API are gated behind Professional ($149/mo)
  • Removing Assembly branding requires Advanced ($399/mo)
  • No partial payments on invoices; no native QuickBooks Online sync

Sourced from public G2, Capterra and Reddit reviews, July 2026.

Where ClientLoop is honest, too.

  • Focused on document collection — not an all-in-one CRM or project manager
  • No HIPAA BAA offering
  • Reminders by email (no SMS)

Client access: Assembly — Magic links by default (no client passwords). ClientLoop — magic links, never passwords.

Questions people ask

ClientLoop vs Assembly, in short.

Is Assembly cheaper than ClientLoop?

Not per client. Assembly starts at $39/mo billed annually for one user and 50 clients. ClientLoop Essentials is £35/month for two team members and up to 100 active clients, Pro is £69/month flat with unlimited clients, and each plan starts with a 14-day free trial. The gap widens on the features most firms want next — see the next question.

What does a custom domain cost on each?

On Assembly, a custom domain and API access begin on the Professional tier at $149/mo annual. On ClientLoop a custom domain comes with Essentials at £35/month, and the API with Pro at £69/month. Removing Assembly’s own branding is a further step up, to Advanced at $399/mo annual.

Do clients need a password with either tool?

No — this is one where both are good. Assembly uses passwordless magic links by default, and so does ClientLoop. If you are comparing either against a portal that makes clients register an account, both are a step up on that front.

Can ClientLoop replace Assembly entirely?

Only if what you actually use Assembly for is collecting documents and forms. Assembly also handles invoicing, contracts, client messaging and CRM; ClientLoop deliberately does not — it is a document collection tool, not an all-in-one back office.

See it with your own clients.

14-day free trial on any plan. Your brand on it in five minutes.