A smarter, more capable AI app builder
Choose the model that builds your app, including Claude Opus 5.5, Claude Sonnet 5.5 and GPT-6.1 Sol, or let Auto pick for you. The builder now accepts audio files, asks a clear question when it needs a decision, and suggests next steps once your app is ready. Your apps can also run tasks on a schedule and use the camera, microphone, and screen sharing.
Import and workshop apps from other AI tools in Assembly
Built something in Claude Code, Lovable, or Replit? Bring it into Assembly and we’ll rebuild it on our platform, so it uses your portal’s sign-in, follows your permissions, and gets the same security as every other app in your workspace.
Not sure how to describe the app you want? Click ‘Workshop your idea’ under the prompt box and copy the starter prompt into ChatGPT, Claude, or the LLM of your choice. It talks your idea through with you and writes a ready-to-build prompt. Logins, client access and roles are already handled by Assembly, so the prompt sticks to what your app needs to do. Paste it back into Assembly and start building.
New apps for client engagement and content approval
Two new apps are ready to add. Client Engagement helps your team see which clients are active and which are going quiet, so you can reach out before they drift. Content Approval gives clients one place to review campaigns and deliverables, leave comments and sign off.
Manage your apps from one settings pane
Every app you build now has a full settings pane. Rename it, change its icon, choose which clients can see it, or delete it. The Connections and Events tabs show which tools the app connects to and which events it sends, including changes you haven’t published yet.
More ways to get build credits
Refer another firm by copying your referral link or sending an email invite, and you both get build credits when they sign up. Need more credits than your plan includes? You can also now buy a one-time credit pack without changing plans.
Improvements & Fixes
- The app builder adapts to smaller screens, with the preview and settings opening in a sheet.
- Older chat messages in the builder load automatically as you scroll up. Asking the builder a question no longer reloads the preview or wipes unsaved work in it.
- In the Apps section of the sidebar, “Edit app” opens the builder’s settings for apps made with the builder. Duplicate is available for those apps, and installed templates use the same icon as their gallery card.
- In the CRM, you can remove a client from a company on the company’s details page, and company CSV imports now include phone numbers.
- In the client portal, long company names are no longer cut off.
- In the Messages App, hovering over a message shows its timestamp and a copy button, and clients can no longer open channels they’ve lost access to.
- In the Contracts App, password-protected PDFs can be signed, autofill fields stay in place after signing, and a contract can’t be submitted with a blank signature.
- In the Payments App, subscription invoice previews are more reliable, and a card that needs extra authentication shows a clear payment error.
- In the Files App, file names can no longer contain slashes, which used to create stray folders. Downloads that open in a new tab now work.
- A portal’s old custom domain now redirects to its current one.
- Team members who open an emailed link while logged out land on the right page after signing in.
- Developers: Platform API responses show your usage limits in their headers, new API keys start with
asmbly_, and custom fields can be updated and deleted through the API.