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CLUSTER CRITICAL-THINKING-WEB · 12 ENTRIES · EARLIEST ENTRY 2025-09-03

AI debate practice platforms

This cluster includes web and mobile apps for practicing debate, argumentation, and critical thinking, featuring AI opponents, structured sparring, fallacy references, and scoring systems. The cluster’s dated history is too thin to read a shape from—only four dated entries exist before the index start, so it predates the index or its members are undated. Among members with activity signals, The_Socratic_Arena leads with 2 stars, followed by debate-coach (1 star) and truth-arena (0 stars).

Entry timeline

ENTRY TIMELINE

MAR 2015: 1SEP 2025: 1DEC 2025: 1AUG 2026: 7SEP 2026: 2
MAR 2015SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 ai-built · 10 unlabelled

Operator · 3 hobby · 1 open source · 8 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 12 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01debate-coach1★1 moliveWeb platform that helps students and public speakers train for debates through AI-generated prep material, live sparring rounds, and scored reports.
  2. 02speechlens0★25 days—Mobile app that coaches speech and debate by transcribing practice recordings, scoring delivery, and generating counterarguments.
  3. 03DeepReview1★4 molivehobbyWeb platform where students upload academic papers to get an AI chat grounded in the text and Socratic questioning that builds critical thinking.
  4. 04Did-I-Cook0★2 mo—hobbyVideo app where two players debate a topic while an AI judges and scores their arguments with evidence-backed reasoning in real time.
  5. 05debattrainer0★10 mostaleliveWeb app that helps users practice and improve debate skills through simulated argument exercises.
  6. 06Logical Defense0★1 yrabandonedliveopen sourceMobile reference app that catalogs and explains logical fallacies to help users identify flawed reasoning during debates and discussions.
  7. 07Objective Reality - Master Critical Thinking & Avoid Cognitive Biases0★unknownliveai-builtWeb app that teaches critical thinking with guides to logical fallacies, cognitive biases, and Bayesian reasoning, plus interactive tools.
  8. 08AI Chat Debate0★unknownliveai-builtChat application where users engage in structured debates with an AI opponent to practice argumentation and critical thinking.
  9. 09Send Mixed Signals0★unknownliveWeb app that helps users find words to express competing intents and inner conflicts.
  10. 10debate-flow.vercel.app0★unknownliveWeb app that helps debaters track arguments and structure debate flows during rounds.
  11. 11PrefBuddy0★unknownlivehobbyDebate companion tool that helps users structure arguments, research topics, and practice rebuttals for improved performance.
  12. 12ContradictMe - Challenge Your Beliefs with AI0★unknownliveAI web app that challenges users' beliefs with research-backed counterarguments to encourage critical thinking.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.