You picked Free
Where will you use it?
No card and no account. You get 30 questions to start, then 10 every week. Pick one, or all three.
Use it on your phone, right now
Take a photo of the problem you're stuck on and theoremEd walks you through it, in your browser. Nothing to install. For your laptop or Chromebook, send yourself the link to the full app.
Copied. Paste it into a message to yourself.
Chrome
Any computer running Chrome, school Chromebooks included. This is the one most students want.
Installs from the Chrome Web Store in about ten seconds. Nothing to download and no warnings to click past.
Mac
macOS 12 Monterey or newer. Reads any window on the computer, not only a browser tab.
Signed and notarised by Apple. Open it, drag theoremEd onto Applications, done. The full steps.
Before you install it
Which one do I install?
Whichever you like, and you can have all of them — one plan covers every device you use it on. The Mac app reads any window on the computer. The Chrome extension reads the tab you are working in and runs on a school Chromebook. Most students on a school laptop want Chrome.
Will my Mac warn me about the download?
Once, the first time you open it, the way macOS does for anything downloaded from the web: “are you sure you want to open it?” Click Open and it never asks again.
What you will not get is “the developer cannot be verified”. theoremEd is signed with an Apple Developer ID and notarised by Apple, and the disk image carries that proof inside it. The install page walks through it.
What happens after I have it?
Open a math problem and press Look at screen. The first time, it asks permission to read the tab or window you point it at; after that there is nothing to set up. It tells you what it can see, then asks you the first question. Want something to try it on first? Three practice problems, each with a mistake in it.
theoremEd never sees anything you do not point it at. The privacy policy says exactly what it reads and where it goes.