Cadet vs Copilot Vision, HeyClicky, Screen Copilot, Cadabra and Adam CAD
AI screen helpers do very different jobs. Some point at where to click, some generate models, and some edit your file for you. Here is how they compare for a student with a brief and a deadline.
| Product | Price | Platform | Works on locked-down university PCs | Reads your brief | Checks requirements | Does the work for you |
|---|---|---|---|---|---|---|
| Cadet | Free, then £2.99/day, £7.99/month or £24.99/semester | Any laptop browser (Chrome or Edge) — Windows, Mac, Linux | Yes — nothing to install | Yes | Yes — every requirement in the brief | No — shows the step, you make the click |
| Copilot Vision | Free in Edge; $20/month Copilot Pro for other apps | Edge and Windows; US only, expanding to non-European markets | US only for now | No | No | No — highlights where to click |
| HeyClicky | Free (25 messages), $20 or $100/month | macOS only (YC S26) | No — Mac app install | No | No | No |
| Screen Copilot | $12, $30 or $120/month | Browser | Yes — browser-based | No | No | No |
| Guidy | $69 one-time plus credits | Windows and Mac app | No — app install | No | No | No |
| Cadabra | Student plan not sold in the EU/EEA, UK or Switzerland | SOLIDWORKS add-in | No — add-in install | No | No | Yes — executes edits directly |
| Adam CAD | Free, $5.99 or $17.99/month | Web — text-to-CAD generator | Yes — browser-based | No | No | Yes — generates the model |
| RhinoAI | Free | Rhino plug-in from McNeel | Needs the plug-in installed | No | No | Yes — executes commands directly |
Facts as of October 2026, from each product's own website. Prices are in each product's own currency. Products change — if something here is out of date, tell us and we'll fix it.
Which one should a student use?
If you need a model made, a generator such as Adam CAD makes one — but it isn't your work. If you want an assistant to edit your file, Cadabra and RhinoAI run commands for you. If you need to learn the step and hand in work you can explain, Cadet shows you where to click in your own model and checks it against your brief.
Why “does the work for you” matters
Coursework is marked on what you did. Tools that execute edits or generate models can put that at risk; guidance that leaves every click to you doesn't.
Cadet never does the work for you.
It shows the step; you make the click. That's why departments can recommend it.