A focused utility is valuable because the user can arrive, finish one job, and leave. Heavy subscriptions and aggressive ads work against that promise.

A paid desktop version, sponsorship, or a small API could subsidize the free experience. Which model has worked without making the product worse?

Editor’s noteA useful tool review should make the task, time, and limitations explicit.

What this test actually tells us

First-draft speed only tells you whether a tool can start. The second revision, mobile behavior, empty states, and long-term maintenance decide whether it belongs in a real workflow.