Contra vs FlashRevise

CONTRA Take a stand. Defend your ideas. Change your opponent's mind. Contra is the first app that turns debate into a discipline. You pick a topic. You take a position. An argumentative AI takes the opposing side — trained to spot your weaknesses, exploit your blind spots, and defend its case until the end. Your only goal: make it change its mind. A precise measure of how you think. After every debate, a detailed score across four dimensions — Logic · Rhetoric · Evidence · Originality — reveals where you excel and where you give ground. An AI coach walks back through each exchange, line by line, and shows you the counter-argument you could have made. Three ways to practice. — Solo. Four difficulty levels, from training to Brutal. The AI adapts to your skill and raises the bar as you progress. — 1v1 Challenges. Send a challenge to a friend. Same topic, same rules. The strongest case wins. — Public Arenas. Join live debates across eight major themes: politics, ethics, science, religion, culture, economics, sport, environment. A new topic, every day. What makes Contra different. — Real-time streaming debates. No rigid turns. The AI replies word by word, like a thought taking shape. — AI coaching after every debate. A critical read of your performance, and the counter-arguments you missed. — Full replay and history. Every debate saved, analyzable, comparable. Your progress, measured over time. — Leaderboards among friends. Streaks, badges, levels. Proof that you're improving — not just a feeling. Who is it for? Students, lawyers, negotiators, debaters, curious minds. For those who believe an idea's strength is measured by the force of its critics. Free. No ads. Unlimited debates with Contra Pro. 14-day free trial, no credit card required. Download Contra. Take a stand. Defend your ideas. Change your opponent's mind.

FlashRevise — La méthode de révision qui fonctionne vraiment. Plus de 1 700 flashcards soigneusement conçues, du collège à l'agrégation. Maths, Physique-Chimie, et 4 langues étrangères. Disponible 100 % hors ligne. CONTENU COMPLET - 13 niveaux : Collège (4e, 5e), Lycée (Seconde, Première, Terminale), CPGE (MPSI, MP), Licence L1, Agrégation - Maths : définitions, théorèmes, formules et méthodes - Physique-Chimie : lois fondamentales, formules, applications - Anglais, Espagnol, Allemand, Arabe 4 MODES DE RÉVISION - Répétition espacée (SRS) — l'algorithme adapte les révisions à ta mémoire - QCM — 4 propositions avec feedback immédiat - Vrai / Faux — révision ultra-rapide - Chrono — QCM en 60 secondes pour booster ta concentration SUIVI DE PROGRESSION - Heatmap de 15 semaines (style GitHub) - Taux de maîtrise par niveau et par matière - Série de jours consécutifs (streak) - 12 badges à débloquer ORGANISATION INTELLIGENTE - Filtrage par niveau, matière et type de fiche - Modes déclinaisons, définitions, formules, théorèmes - Recherche rapide dans toutes les cartes DESIGN SOIGNÉ - Interface sombre et moderne - Animation 3D au retournement des cartes - Navigation fluide 5 onglets 100 % HORS LIGNE Aucune connexion Internet requise. Toutes les données sont stockées localement sur ton appareil. Aucun compte. Aucune publicité. Idéal pour réviser dans le train, le bus, ou partout sans réseau.