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Head-to-head · Customer Portal Software

Assembly vs Kitchen.co

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Assembly #1 in Customer Portal Software 9.4/10 Free plan Free plan✓ 5 of 5 features Visit Assembly
Kitchen.co #5 in Customer Portal Software 8.9/10 Free plan · 14-day trial Free planFree trial✓ 4 of 5 features Visit Kitchen.co

Assembly leads on 0 checks, Kitchen.co on 0, and 7 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAssembly · 9.4/10
  • Free planboth
  • Free trialonly Kitchen.co
  • Most featuresAssembly · 5 of 5

Assembly scores higher on our rubric for customer portal software: 9.4 against 8.9 out of 10; our editors rank them #1 and #5.

Assembly is the better fit for teams wanting a full portal with a free plan. Kitchen.co is the better fit for agencies wanting flexible billing and payments.

  • Assembly fits best

    Teams wanting a full portal with a free plan

  • Kitchen.co fits best

    Agencies wanting flexible billing and payments

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Side by side

Feature Assembly 9.4/10 Visit ↗ Kitchen.co 8.9/10 Visit ↗
At a glance
Editor score 9.4 8.9
Ranking #1 in Customer Portal Software #5 in Customer Portal Software
Best for Teams wanting a full portal with a free plan Agencies wanting flexible billing and payments
Pricing model Free plan + paid Free plan + paid
Starting price $29/mo $29/user/mo
Free plan ✓ ✓
Free trial — 14 days
Deployment Cloud, Desktop Cloud
Platforms Web, Windows, macOS Web
Support Email, Community, Docs Docs
Compliance SOC 2, GDPR, HIPAA, 2FA PCI DSS, 2FA
Integrations 1,000+ integrations 13 integrations
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market
Features Assembly 5/5 · Kitchen.co 4/5
Request intake ✓ ✓
Work tracking ✓ ✓
File sharing ✓ ✓
Custom domain ✓ ✓
Single sign-on ✓ (best) Not checked yet
Specs
Client user limit 50 users Not checked yet
Our review
Pros
  • Branded portals cover onboarding, forms, files, messaging, and contracts
  • Billing, payments, subscriptions, and eSignatures extend beyond basic portals
  • Free plan plus Zapier, Make, API, and MCP connections support flexible adoption
  • Combines portals, tasks, files, documents, invoices, quotes, and payments
  • Supports Stripe, PayPal, Square, Razorpay, and 2Checkout
  • White-label branding, custom domains, and custom email domains
Cons
  • Free plan is limited to 5 active contacts and 1 internal user
  • Starter has 1 internal user despite expanding to 50 active contacts
  • Broad functionality may exceed the needs of teams wanting only file sharing
  • Free plan limits workspaces to 2 internal users
  • Free storage is 2 GB with a 500 MB per-file limit
  • Agency White-label billing is monthly per internal user
Our verdict

Assembly is a client portal and customer-experience platform for professional service firms. It brings branded and white-labeled client workspaces together with onboarding checklists, intake forms, file sharing, messaging, tasks,…

Read the review →

Kitchen.co is a web-based client portal and project-management platform for agencies, studios, freelancers, accounting and bookkeeping firms, and law firms. It brings client requests, project discussions, tasks, Kanban boards, documents,…

Read the review →
  1. AssemblyCustomer Portal Software 9.4Free plan
  2. Kitchen.coCustomer Portal Software 8.9Free plan · 14-day trial

Strengths and trade-offs

  • Assembly — where it wins

    • Branded portals cover onboarding, forms, files, messaging, and contracts
    • Billing, payments, subscriptions, and eSignatures extend beyond basic portals
    • Free plan plus Zapier, Make, API, and MCP connections support flexible adoption

    Where it doesn't

    • Free plan is limited to 5 active contacts and 1 internal user
    • Starter has 1 internal user despite expanding to 50 active contacts
    • Broad functionality may exceed the needs of teams wanting only file sharing

  • Kitchen.co — where it wins

    • Combines portals, tasks, files, documents, invoices, quotes, and payments
    • Supports Stripe, PayPal, Square, Razorpay, and 2Checkout
    • White-label branding, custom domains, and custom email domains

    Where it doesn't

    • Free plan limits workspaces to 2 internal users
    • Free storage is 2 GB with a 500 MB per-file limit
    • Agency White-label billing is monthly per internal user

More comparisons

All customer portal software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update