Summary
Choose Agentation when you live in a web app you control and want DOM selectors plus optional MCP. Choose Casso when you need a system-wide, agent-agnostic overlay that works on native apps, multi-monitor setups, and any CLI agent - with captures that stay local.
Side by side
| Dimension | Casso | Agentation |
|---|---|---|
| Surface | Any screen (desktop overlay) | Web app / React component in your app |
| Primary output | Annotated screenshot + numbered prompt + local files | Structured markdown with selectors / component tree |
| Agent lock-in | Agent-agnostic clipboard handoff | Works with any agent; MCP optional for deeper sync |
| Install model | Desktop app (Mac; Windows shipping) | npm package in your frontend |
| Privacy | Local sessions; no LLM in Casso | Runs in your app; data path depends on your stack |
| Price | 7-day free trial, then $29 one-time personal license | Free for internal use (commercial redistribution separate) |
Choose Casso when
- You annotate native apps, design tools, terminals, or apps you do not own the source for.
- You switch between Claude Code, Codex, and other agents.
- You want numbered visual regions on a real screenshot, not only DOM selectors.
- You want a one-time desktop purchase with local-only capture.
Choose Agentation when
- Your workflow is almost entirely inside a web app you can install a component into.
- You need CSS selectors and React tree paths more than a screenshot.
- You want MCP round-trips where the agent resolves annotations in-place.
FAQ
Related
Try Casso free for 7 days
Numbered screen annotations for Claude Code, Codex, and other agents. 7-day free trial, then $29 once - not a subscription.