The browser is fine for quick questions. The desktop app is where Claude becomes an actual coworker.
The Claude browser version (claude.ai) is a chat interface — you type, Claude responds, and that's about it. The desktop app unlocks a completely different set of capabilities that don't exist in the browser.
Here's what lives exclusively in the desktop app:
Set up Dispatch — connect your phone to your desktop so you can send Claude tasks while you're away from your computer. Open the Cowork tab, click "Dispatch" in the sidebar, and scan the QR code with the Claude mobile app. Now you can text Claude a task from anywhere and come back to finished work.
Create a Project in Cowork — instead of running all your tasks in one thread, create separate Projects for different areas of your work (one for marketing, one for client work, one for admin). Each Project has its own files, context, and scheduled tasks, so Claude doesn't mix up your work across different areas.
Build your first Skill — if there's a task you do regularly with specific instructions every time (like formatting a client report a certain way), save it as a Skill. Go to Customize → Skills. Once it's saved, you can trigger it with one sentence instead of re-explaining the whole process.
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