# TipTruth

> TipTruth is a free, private, client-side tip calculator and receipt checker. It verifies the suggested tip, detects hidden fees and tax-basis errors, and splits restaurant bills fairly — all in your browser, with no sign-up and no data sent to the server. It works offline as a PWA.

## About

- [TipTruth Home](https://tiptruth.com/) : Free web app that checks a restaurant receipt for overcharging before you tip.

## How it works

- Enter your receipt's subtotal, tax, and the suggested tip.
- TipTruth runs an integrity audit (tax-basis check, tip-percent sanity, total consistency, hidden-fee detection, per-person split, abnormal-tip flag).
- It shows an integrity score (0–100), the fair tip amount, the overcharge difference, and a per-person share.
- Everything runs locally in the browser — no bill amounts ever leave your device.

## Key facts

- Free and private: no account, no tracking of amounts, fully client-side.
- Works offline as an installable PWA.
- Detects these receipt issues: tip calculated on after-tax amount, inflated suggested tip, inconsistent totals, hidden percentage fees, incorrect per-person split, and abnormally high tips.