VoicePencilApp Store

VoicePencil

Capture · Learn · Remember · Repeat

Smart NotesBrain GymYouTube Learn
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VoicePencil is a complete voice intelligence system — capture spoken thoughts, let AI structure them, then train your brain to actually retain what you learned.

Brain Gym turns your own notes into a daily mental workout. YouTube Learn transforms any video into a full study system. All in one app, free to start.

Architecture

A voice intelligence system

Capture

Record at the speed the thought arrives

Deepgram Nova-2 transcription across 33 languages. Real-time waveform, pause/resume, filler word detection. Live transcription while you speak.

Refine

AI structures everything

GPT-4o-mini generates summaries, action items, mood tags, and auto-categorization in under 3 seconds. 8 categories detected automatically.

Retain

Build recall into the note itself

Brain Gym turns your notes into a daily mental workout. YouTube Learn extends any video into flashcards, quizzes, and spaced repetition.

🧠Free for Everyone

Brain Gym

Turn your notes into a workout for your mind. Seven game types. Six brain categories. Daily streaks, XP, and badge milestones — sourced entirely from your own voice recordings.

7Game Types
6Brain Categories
4Play Modes
8Games per Workout

7 Game Types

Quick Recall

Multiple choice with 4 options, 15s timer

Fill the Gap

Complete a sentence — hints available

Speed Round

Rapid-fire true/false, 5 statements

Word Scramble

Unscramble letters to form the word

True or False

5 timed statements per game

Missing Word

Multiple choice fill-in, 4 options

Category Sort

Drag items into 2 categories

6 Brain Categories

Memory
Speed
Logic
Words
Focus
Creative

4 Play Modes

  • From My NotesGames sourced from your recordings
  • Brain TrainingLogic, memory, speed, vocabulary drills
  • Mix EverythingYour notes + brain games (recommended)
  • Surprise MeRandom mix for discovery

4 Difficulty Levels

  • Easy0.8x XP
  • Medium1.0x XP
  • Hard1.5x XP
  • Expert2.0x XP

Experience Points

Earn XP every game. Difficulty multipliers stack — Expert mode awards 2.0x. Level up as your knowledge grows.

Daily Streaks

6 badge milestones at 3d, 7d, 14d, 30d, 60d, and 100 days. 8-game daily workouts keep the habit locked in.

Between Games

Riddles, jokes, and neuroscience fun facts appear between games — learning that feels like a break, not a chore.

▶YouTube Learn

Turn any video into a complete learning system

Paste a YouTube URL. AI analyzes the full transcript, detects complexity and topic density, then generates a five-tab study experience — notes, quiz, flashcards, recall challenges, and live chat. All scoped to that video.

01Paste any YouTube URL into VoicePencil
02AI fetches and analyzes the full transcript — auto-detects complexity, content type, topic count, information density
03Five learning tabs unlock — study, quiz, flashcards, recall, and chat
04Leitner spaced repetition tracks your flashcard progress across 5 boxes from New to Mastered

5 Learning Tabs

01

Study Notes

AI chapters with memory hooks — analogies, mnemonics, acronyms, stories

02

Quiz

Multiple choice, T/F, fill-in-blank, explain — 3 difficulty tiers

03

Flashcards

Leitner spaced repetition — 5 boxes from New to Mastered

04

Recall Challenges

Teach-back, blurt, connect, simplify — AI scores your free-form answers

05

Chat

Interactive Q&A scoped to the video content

Memory Hook Types

  • Analogy
  • Acronym
  • Mnemonic
  • Visual Aid
  • Story

Quiz Question Types

  • Multiple Choice
  • True / False
  • Fill in the Blank
  • Explain in Your Own Words
  • Targeted Retry (wrong answers)

Recall Challenge Types

  • Teach-Back — explain like a teacher
  • Blurt — recall as much as possible
  • Connect — link concepts together
  • Simplify — explain for a beginner
New
Learning
Review
Almost
Mastered

Leitner Spaced Repetition

Cards you know well move toward Mastered. Cards you miss return to New. The algorithm shows you what matters most.

Foundation

Smart Notes

Voice to structured note in under 3 seconds

Deepgram Nova-2 transcribes across 33 languages. GPT-4o-mini generates a summary, pulls action items with priority levels, detects mood, and places the note into one of 8 categories — automatically.

8 Auto-Detected Categories

Shopping
Tasks
Ideas
Journal
Reminders
Research
Meeting
General
Deepgram Nova-2 transcription33 languages, real-time waveform, pause/resume
GPT-4o-mini summarizationSummary, action items, mood, category in <3s
Smart action item extractionHigh / medium / low priority detection
Filler word detectionSkip "um" and "uh" on playback automatically
28+ AI transforms (Pro)Reformat, translate, expand, semantic search

By the numbers

The VoicePencil system

7

Brain Gym game types

5

YouTube Learn tabs

33

Languages supported

<3s

Voice to structured note

Free

Brain Gym — no paywall

Why VoicePencil?

Traditional Notes

  • Type everything manually
  • No automatic structure or categories
  • Copy-paste between apps
  • Forget what you captured in a week
  • No built-in review or recall system
  • YouTube videos disappear after watching
  • No gamification to build the habit

VoicePencil

  • Speak and capture instantly, 33 languages
  • AI structures and categorizes everything
  • Unified capture-to-recall workflow
  • Brain Gym quizzes from your own notes
  • Leitner spaced repetition for flashcards
  • YouTube Learn — 5 tabs from any video
  • Streaks, XP, badges — free for everyone