Assembly Alternative
Assembly is a polished client portal. But its forms have 9 field types, no conditional logic, and no auto-save. Signatures and payments are separate apps, not part of the intake flow. Portico puts forms, signatures, and payments in one guided sequence — with conditional logic that adapts to each client.
Short answer, long answer, file upload, and 6 more. No conditional branching, no signature fields, no payment steps. If your intake needs logic or legal signatures, Assembly does not have either.
All fields on one page. No progress bar, no step navigation. If clients close the browser mid-form, their work may be lost — Assembly has no save functionality on client forms.
Assembly offers 3 color pickers — all for the sidebar. The rest of the portal is the same white/blue for every customer. Client emails arrive with no logo and a broken header icon.
Assembly's portal looks professional. But its onboarding tools are surface-level: no e-signatures, no conditional logic, no workflow automations, and no auto-save on client forms. A checklist is not a guided flow.
Assembly

Portico

Assembly

Portico

Assembly

Portico

Text, file uploads, signatures, payments, dates, dropdowns, multi-select, ratings — plus branching logic that shows different fields based on previous answers.
Clients see step 2 of 5, not an endless scroll. Auto-save on every field means they can close the browser and resume exactly where they left off.
Contracts signed and deposits collected as part of the onboarding flow. No separate DocuSign subscription or Stripe invoice — it is all in one sequence.
Logo, colors, custom domain, branded emails with your sender name. Remove the "Powered by" badge on Starter tier. Your brand on every surface clients see.
Per-onboarding message threads, per-field comments with approve/reject workflows, and read receipts. Portico's messaging is purpose-built for onboarding conversations — not a generic chat bolted onto a portal.
| Feature | Portico | Assembly |
|---|---|---|
| Purpose-built client onboarding | General-purpose client portal | |
| Conditional intake forms | ||
| E-signatures | ||
| Multi-step forms | Single scroll | |
| Auto-save on client forms | 800ms | |
| Field types | 18+ | 9 |
| Branded transactional emails | No logo, broken icon | |
| Custom branding | $39/mo | Sidebar only (3 colors) |
| Remove "Powered by" badge | $39/mo | Advanced plan |
| Per-field comments | ||
| Per-field approve/reject | ||
| Payment collection | Separate app | |
| Client portal | ||
| In-portal messaging | ||
| Magic-link access | ||
| Workflow automations | ||
| Audit trail | Hash-chained, tamper-proof | |
| Multilingual (9 locales) | ||
| Unlimited team members | ||
| Setup time | ~10 min | 1-3 hours |
| Starting price | $0 (free tier) | $39/mo |
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