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What the reviews say

Data pieces written against the corpus on a dated day, so the numbers can be checked. New posts when the data moves.

How to validate a SaaS idea with one-star reviews

A repeatable method for turning app-store and forum complaints into evidence for or against a product idea, with the three questions that decide whether a complaint is buildable.

The "free" note-taking app that isn't: 217 reviews on pricing

The single largest complaint about note-taking apps is not sync or features. It is a free tier that stopped being free. What 217 reviewers say, which apps they name, and the gap it leaves.

Nobody can cancel: the subscription complaint that spans every category

137 reviewers across eight unrelated apps describe the same thing: trying to cancel a subscription and still being charged. The pattern, the adjacent complaints, and what a product built against it would look like.

EV charging apps are the most complained-about software we track

694 low-star reviews, 48 repeated complaints, and one that 547 drivers share: charging apps that force a prepaid wallet. What the reviews say and where the gap is.

The apps people are leaving: what 34,000 one-star reviews say

We read 34,469 low-star app reviews and grouped the complaints that repeat. Here are the categories, the apps and the failures that come up most, with the numbers.