Download pheebo

Click the download button below to get the pheebo extension for your browser.

Choose Your Plan

Free Starter Plan: No account required! You can start using pheebo immediately with selection mode. Just install the extension and you're ready to go.

Pro Plan: For automatic error detection and advanced features, create an account and subscribe to the Pro plan. You'll get a 7-day free trial to explore everything pheebo has to offer.

Note for Pro users: The automatic mode will become active once you activate your subscription by providing a payment method. No payment will be charged during the trial period.

Subscribe to Pro Plan

Start Verifying Math

You're all set! Now you can use pheebo in two ways:

Selection Mode (Free for all users): Click & drag to select any mathematical expression and let pheebo verify it for you.
Automatic Mode (Pro Plan): pheebo automatically detects and flags errors as you work, guarding your back against AI-generated mistakes.

See pheebo in Action

Watch our demo videos to understand how pheebo works.

Selection Mode

See how you can instantly check your selections for errors. Simply select any mathematical expression and let pheebo verify it for you.

Automatic Mode

Watch pheebo automatically detect and flag mathematical errors in real-time as you work. No manual selection required.

Help us improve pheebo

We are continuously working to improve pheebo and make it more accurate and useful for everyone. Your feedback is invaluable to us!

If you encounter any errors, bugs, or have suggestions for improvement, please don't hesitate to reach out. Send us screenshots of any issues you find, and help us make pheebo better for the entire community.

Example of a bug

Send Feedback

Installation Steps