How quickly can I set up a client portal with Selpx?

You can launch a fully branded client portal in under 5 minutes. Simply register, add your logo and brand colors, create a project, and invite your client or share their private access link.

Is the invoice generator completely free?

Yes! Selpx provides a 100% free client-side invoice generator that lets you create and download clean, professional PDF invoices with custom tax rates, currencies, and line items without needing an account.

How does Selpx achieve fast load times?

Selpx is built with Next.js on an edge-cached architecture designed for sub-100ms response times globally, ensuring zero lag for both agency admins and their clients.

Can I collect payments from clients inside the portal?

Yes. Selpx integrates directly with Stripe, PayPal, cryptocurrency, and manual bank transfers with 0% platform commission fees. Clients can view and pay invoices directly in their portal.

Which languages are supported on Selpx?

Selpx is natively localized in 16 languages: English, Arabic, Spanish, French, Persian, Urdu, Hindi, Indonesian, Vietnamese, Filipino, Thai, Malay, Chinese (Simplified & Traditional), Tamil, and Malayalam.

Comparison

Selpx vs Assembly (formerly Copilot)

Assembly is a polished, full-featured client portal and CRM platform for professional service firms. Selpx is a simpler white-label portal for freelancers and small agencies who want to be live quickly and keep costs low.

Assembly is for

firms that want a CRM, an app builder and deep integrations

Selpx is for

freelancers and small agencies who want a branded portal, files, invoices and messaging without a long setup

Pricing (checked October 2026, see each vendor's pricing page for current rates)

Selpx:Free (5 clients, 3 projects) · Starter $19/mo (10 clients, 20 projects, Selpx badge removed) · Pro $49/mo (unlimited clients & projects, custom domain, Selpx badge removed)

Assembly:Free (5 contacts) · Starter $29/mo billed annually (50 contacts) · Professional $90/mo billed annually (500 contacts, 3 internal users, custom domain, Assembly badge removed)

Where Assembly is stronger

CRM, app builder, automation builder, HIPAA option, larger integration ecosystem.

Where Selpx fits better

lower entry price for unlimited clients, Selpx badge removed from $19/mo Starter, faster setup, built-in AI project updates.

Feature comparison

Feature	Selpx	Assembly
White-label branding	Starter & above	Professional ($90/mo)
File delivery + approvals	Yes	Yes
Stripe invoice payments	Yes	Yes
E-signatures	Yes	Yes
Client messaging	Yes	Yes
Free tier	5 clients, 3 projects	5 contacts
Entry paid tier	$19/mo (10 clients, 20 projects)	$29/mo billed annually (50 contacts)

The bottom line

Assembly is a polished, full-featured client portal and CRM platform with deep customization for larger teams. Selpx is purpose-built for freelancers and small agencies wanting a straightforward branded portal, file approvals, invoices, and built-in AI project updates at a lower entry price for unlimited clients.

Try Selpx free

No credit card. Setup in 5 minutes. Up to 5 clients and 3 projects free forever.

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