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Pensa
Logic and fact checks, paragraph by paragraph
Pensa reads academic writing the way a demanding teacher does: paragraph by paragraph, checking whether the reasoning holds and whether the details are right.
Hi Product Hunt 👋
I built Pensa because every writing tool I tried was checking the wrong layer. Grammarly and its descendants will happily flag a comma splice in a paragraph whose central claim doesn't follow from its own evidence — and say nothing at all about the second part.
Pensa only looks at the second part. It reads one paragraph at a time and asks four questions:
Does the reasoning hold? Non sequiturs, circular arguments, false dichotomies, conclusions that don't follow from the premises.
Are the details right? Dates, names, numbers, and causal claims that are false, widely disputed, or suspiciously precise without a source.
Is the argument built properly? Missing topic sentences, buried claims, paragraphs trying to do two jobs at once.
Is the evidence doing its job? Unsupported assertions, evidence attached to a claim it doesn't actually support, quotes left unanalyzed.
It deliberately ignores grammar, spelling, and punctuation. Other tools do that well, and I didn't want the findings that matter buried under a pile of comma notes.
Every issue quotes the exact span it's about, explains the problem in language a student can act on, and suggests a specific fix — never "be more clear."
Free: one document, five paragraph checks a month.
Premium: $15/month or $120/year, 1,000 checks a month.
PRODUCTHUNT takes 50% off your first three months — enter it at checkout.
What I'd genuinely like to know is where it gets things wrong. It's tuned to be exacting but proportionate: a short, correct paragraph should score well and report nothing. If it invents problems in your writing to look thorough, that's a bug, and I want to hear about it.
About Pensa on Product Hunt
“ Logic and fact checks, paragraph by paragraph”
Pensa was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #143 on the daily leaderboard. Pensa reads academic writing the way a demanding teacher does: paragraph by paragraph, checking whether the reasoning holds and whether the details are right.
On the analytics side, Pensa competes within Productivity, Writing and Education — topics that collectively have 798.5k followers on Product Hunt. The dashboard above tracks how Pensa performed against the three products that launched closest to it on the same day.
Who hunted Pensa?
Pensa was hunted by Hyungsuk Kang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Pensa including community comment highlights and product details, visit the product overview.
Hyungsuk Kang