PrompTessor is a workspace for prompts: generate one from a description, analyse how well an existing one is likely to perform, optimise a rough draft, refine it against feedback, and keep the results in a library with history.
Reverse prompting is the feature that justifies the product. Given an image, a video or a piece of text, it works backwards to the prompt that would produce something like it, which is how people actually learn this: by finding output they admire and wanting to know how it was made.
It reports 35,000 users, and pricing is genuinely published: free with 10 uses a month, then $10, $15 and $20 for 1,500, 3,000 and 5,000. Metering by usage rather than features is fair but makes heavy iteration expensive, prompt quality still depends on knowing what you want, and prompting techniques shift with every model release, so a library ages.
