The Base44 alternative where every app works together
Base44 ships a fast hosted app. Assembly ships apps into a client experience branded as yours, ready for team and clients.
Two ways to ship an app. One is meant for clients.
Base44 is fast and all-in-one. Here is what changes when clients are involved.
| Features | Assembly | Base44 |
|---|---|---|
| Your brand on the sign-in | ||
| Branded client experience | ||
| Shared client CRM | ||
| Team and client permissions built in | ||
| One credit type that rolls over | ||
| Billing, messaging, and files included | ||
| SOC 2 Type II | ||
| HIPAA options | Yes, on Advanced |
Why teams choose Assembly over Base44
What you don't have to build
Built for clients, not just builders
Team tools land in your dashboard, client apps in your branded experience.
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.
The stack Base44 makes you build is already assembled
A built-in CRM, a client login and ready-made business apps.
Security you don't generate
Logins and permissions are platform infrastructure, not generated.
When Base44 is the better fit
We would rather tell you than waste your time.
No clients and no brand requirements yet, just an idea to validate. Base44 gets a hosted app in front of people faster.
Base44 offers SEO and AI social tooling for a public, marketed product. Assembly is built for apps your clients sign into, not for growing an audience.
Anything anonymous visitors use, rather than clients who sign in. Assembly apps sit behind a client login, inside your portal.
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
Frequently asked questions
Yes. Assembly is an AI app builder for service businesses that need client-facing apps. Where Base44 ships a fast hosted app with its own branding on the login, Assembly ships apps into a client experience that is fully yours, with a built-in CRM and a maintained team and client boundary.
Base44 removes front-end platform branding on paid tiers, but users report the login splash still shows the Base44 logo even on custom domains. Assembly applies your logo and colors to every app, and on Professional and up your clients sign in on your own domain with the Assembly badge removed.
Base44 lets you export frontend code, but the backend, database and auth stay on Base44's infrastructure. Assembly lets you export your client data whenever you want, and your apps live in your Assembly workspace alongside your CRM and billing.
Base44 uses two credit types, message and integration, that expire monthly and cannot be topped up without upgrading. Assembly's build credits are for building, live apps consume none, and the free plan never expires.
It is a capable hosted platform, but the branded-login gap is a real limit for client-facing use, and live-app usage draws down integration credits. Assembly is built for exactly that case.
Both take security seriously, and Base44 states on its security page that it is SOC 2 Type II and ISO 27001 certified. Assembly's difference is architectural: logins and permissions are maintained by Assembly rather than generated per app, each app gets its own dedicated database, and SOC 2 Type II plus a HIPAA BAA on the Advanced plan are available.
No. Describe what you want, approve the plan, and Assembly builds. Iterate the same way, by chat.
Public marketing sites, online stores and consumer apps. Assembly builds apps your team and your clients log into.
Client-ready
from the first screen
Stop stitching together tools that were never meant to fit.
Run and build everything in one place.