Launched January 6, 2026

Pheebo
AI makes mistakes,pheebo guards your back
FreeAIBrowser Extension230 impressions#1943 of its week
pheebo is a browser extension that helps you verify AI mathematical solutions instantly and catch calculation errors before they cause problems. It works on ChatGPT & Claude.
Pheebo is a Chrome extension that instantly verifies AI-generated mathematical solutions and highlights errors.
- for
- Developers, analysts and anyone using AI tools for math calculations
- pricing
- free
works withChromeChatGPTClaude
Key features
5 features of Pheebo
- Selection mode — Select any mathematical expression and Pheebo instantly analyzes it for errors.
- Automatic mode — Automatically detects and highlights math errors in AI-generated content in real-time.
- Chrome extension — Runs directly in the browser on the Chrome Web Store with no account needed.
- Supports ChatGPT & Claude — Works on outputs from both ChatGPT and Claude models.
- Free installation — Install for free with no subscription or payment required.
Use cases
- Verify AI-generated calculations in research reports
- Catch math errors in financial spreadsheets created by AI
- Save time by automating manual verification of AI answers
- Reduce anxiety by ensuring AI math outputs are correct before publishing
Pheebo FAQ
Do I need to create an account to use Pheebo?+
No, Pheebo can be installed and used without any account.
Which AI models does Pheebo work with?+
It works on mathematical content generated by ChatGPT and Claude.
Is Pheebo free to use?+
Yes, the extension is free to install from the Chrome Web Store.
How does Automatic mode work?+
It continuously monitors AI-generated content and highlights any mathematical mistakes in real-time without interrupting your workflow.
Can I manually check specific expressions?+
Yes, use Selection mode to pick any expression and have Pheebo instantly analyze it for errors.
Summarized by DevHunt from pheebo.app · Oct 6, 2026. Details may change; check the official site.












