# Review sentiment analysis

> Review sentiment analysis sorts reviews by the mood they show, such as good, bad or mixed.

Source: https://synthiya.ai/glossary/review-sentiment-analysis · Updated 2026-10-09 · By Synthiya

Star ratings give you a rough mood, but they miss a lot. A 4-star review can still hold a sharp complaint. A 2-star review might praise the design but hate the price. Sentiment analysis reads the words, not just the stars.

Simple tools count positive and negative words. AI models go further. They can tell the mood about each topic in a review, like "love the design, hate the ads."

## Why it matters

Sentiment by topic tells you what to protect and what to fix. If talk about "sync" turns more negative after a release, you know where to look first. A free [App Teardown](https://synthiya.ai/teardowns) shows this for any app's recent reviews.

> **Example:**
> Review: "Great app, but the new update logs me out all the time."
>
> Overall: mixed. The app as a whole: positive. Login: negative.