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Braintain vs Fenzo

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Braintain compared with Fenzo
DetailBraintain logo BraintainFenzo logo Fenzo
What it doesAI flashcard app with ready-made learning collections and spaced repetition AI learning agent that builds personalized courses to develop real understanding
StageNot given Startup
FoundedNot given 2026
Based inES US
Pricing modelFreemium Freemium
PricingFree version includes all BrainPods, custom decks, spaced repetition, session goals and reminders. Premium is a monthly or annual subscription bought inside the app, adding Mira AI coach and removing ads. Not given
Key features
  • Ready-made BrainPods with AI-generated images, example sentences and audio on every card
  • Spaced repetition scheduling using SM-2 algorithm
  • Create custom flashcard decks with your own content and images
  • Audio pronunciation for every card
  • Mira AI coach with Learning Score, strengths and weaknesses analysis
  • Session goals and progress tracking
  • Quiz mode with multiple-choice answers
  • Home-screen widget showing due cards and study streak on iOS
  • Review reminders to build daily study habits
  • Four-level rating system for card performance
  • Create custom personalized courses from any topic, question, or document
  • Interactive lessons with exercises, diagrams, quizzes, and simulations
  • AI book summaries with personalized key insights
  • AI roleplay for practicing difficult work conversations
  • Audio versions of lessons for learning on-the-go
  • Real-world exam preparation with timed practice tests
  • Smart flashcards with spaced repetition
  • Dedicated AI mentor available in every lesson
  • Progress tracking and learning gap identification
  • Share courses with classmates, teammates, or friends
What makes it different
  • No deck-building required—start learning immediately from ready-made BrainPods with images and audio pre-loaded
  • Dual coding: visual memory anchors paired with words for stronger retention
  • AI coach Mira provides personalized study plans and learning insights
  • Calm, distraction-free interface focused on learning over gamification
  • Based on proven cognitive science: active recall, spaced repetition and dual coding
  • Builds real understanding through active learning, not passive answers
  • Personalized to your specific role, goals, and actual work context
  • Based on cognitive science research showing active learning is 1.5x more effective
  • Works for any profession, not just software developers
  • Courses designed to be completed with momentum and progressive structure
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)3 no change since last check16 no change since last check
Trust Flow (Majestic)95
Citation Flow (Majestic)3025
Referring domains (Majestic)7455

5 details filled in for both companies.

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