Observed arrival · 2026-09-17
PersephoneAI: OAB questions with the law attached
A Brazilian Bar Exam study app that connects practice questions and mistakes to the literal legal source that resolves them.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The product pairs each practice error with a literal passage from an official legal source rather than relying only on a commentary or generated summary. Its stated corpus contains 514 questions from the 39th through 46th OAB exams, and the review flow includes explanations for each answer choice. The page also describes revisiting mistakes after one, three, and seven days, while the mobile app is presented as forthcoming.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue