pheebo

Browser tool that detects and corrects math errors in ChatGPT and Claude answers.

Browser extensionfreemiumglobal

pheebo checks mathematical expressions and computations produced by ChatGPT or Claude, flagging and correcting errors since LLMs are not designed for reliable computation. It offers a free selection mode where users frame a formula to check, and a paid automatic mode that silently monitors for errors in the background.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of pheebo - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

Claim pheebo to unlock →

Try Matchbox with your own problem

Describe what is not working - we’ll show you whether pheebo (or something else) actually fits.

Try a problem