Assembly

The Lovable alternative that’s ready on day one

Ship your apps inside a branded client experience with logins, permissions, and a CRM already handled.

Same prompt. Very different destination.

Lovable ends with a prototype you finish. Assembly ends with an app your clients can sign into.

Assembly compared with Lovable
FeaturesAssemblyLovable
Ready for clients on day one
Managed logins and permissions
Shared client CRM
Branded client experience
White-label branding
Yes, on Enterprise
Full code export
Live apps without credits
HIPAA options
Yes, on Advanced

Why teams choose Assembly over Lovable

Apps your clients can use

Lovable ships a prototype at its own address. Assembly builds it into your branded portal.

Logins and permissions built in

Lovable generates access rules per app. Assembly maintains them for you.

One CRM behind every app

Contacts, companies, and custom fields that every app connects to automatically.

What you don't have to build

Describe it. Approve it. Clients use it

Assembly builds nothing until you approve its plan.

Approve
Overview

A client-facing calendar app where your team schedules sessions and each client sees and books only their own.

Core Flows
  • Internal user opens the app from the dashboard, sees the week across every client, and filters by company or status.
  • Internal user clicks New event, picks a company, a time and a length, then publishes it to that client's calendar.
  • Client opens the calendar in the client experience and sees their own events and the open slots for their company.
  • Client books an open slot, gets a confirmation, and a reminder before it starts.

A full client experience, not just a builder

Lovable gives a blank canvas. Assembly gives the CRM, portal and apps.

Stop carrying the maintenance yourself

The hard parts are engineered once and inherited by every app.

When Lovable is the better fit

We would rather tell you than waste your time.

Lovable syncs the full code to GitHub, so a developer can take it over and keep building in their own tools. Assembly runs your apps for you and does not export the code.

Assembly builds apps that sit behind a client login, inside your portal. For a marketing site or an app anyone can open without signing in, Lovable is the better tool.

If the app is a one-off that will not grow, a code-first tool is the shorter path. Assembly pays off when your apps share clients, logins, and data over time.

Predictable pricing by design

Lovable's credits also fund hosting and live AI. Assembly's are spent only on building, and a live app is $5 a month.

See full pricing

Free

$0/ free forever

Includes:

  • 5 active contacts
  • 3 apps
Get started

Starter

$29/ per month

Everything in Free, plus:

  • 50 active contacts
  • API and MCP connector
Get started

Professional

$99/ per month

Everything in Starter, plus:

  • Custom domain
  • Assembly badge removed
  • Automation builder
Get started

Advanced

$499/ per month

Everything in Professional, plus:

  • Unlimited contacts
  • HIPAA BAA
  • Enforced MFA
Book a demo

GarrettAdvertai Marketing

We’ve built out apps within weeks that I doubt we could have done within five to ten years before.

5 weeks

Development to launch

200+ clients

Using applications

5+ tools

Consolidated and saved

Read firm’s story→

Frequently asked questions

Yes. Assembly is an AI app builder built for service businesses that need apps their clients log into. Where Lovable generates a prototype you still secure, host, and connect to client data, Assembly publishes a working app into a branded client experience with logins, permissions, and a built-in CRM already included.

It can, but you configure and secure the auth yourself on Supabase, and access rules are generated per app. Assembly's logins and permissions are platform infrastructure built and maintained by Assembly, with a hard boundary between team and client views.

Lovable is excellent at getting to a first version fast. Making that app production-ready, meaning securing it, hosting it, and connecting client data, is additional work, which is why teams often reach for a deployment layer afterward. Assembly apps publish live into your client experience.

Assembly build credits are used only for building and editing apps, and running your live apps consumes none. Lovable's unified credits also fund hosting and live-app AI. Assembly's free plan never expires.

Security on Assembly is platform infrastructure, not generated per app. Logins and permissions are maintained centrally, and each app runs in its own dedicated database and sandbox.

No. Describe what you want, approve the plan, and Assembly builds. Changes happen the same way, by conversation.

Public marketing sites and consumer apps. Assembly builds apps people log into, meaning your team and your clients.

Your next client app,
live this afternoon

Stop stitching together tools that were never meant to fit. Run and build everything in one place.