New · Self-directed Learning App

Trace your thinking.

Write your solution by hand. ThinkTrace records every stroke, detects where you got stuck, and shows you exactly how to improve — any subject, any level.

Download Free See how it works
Free to start
Android & iOS
No AI required
ThinkTrace
1:24
9:41
ThinkTrace
Good morning 👋
Alex's ThinkTrace
7
Day Streak 🔥
12
This week
XP · Lv.12350
62% to Lv.13
Today's Challenges
Simultaneous Equations
Math · Grade 8
Pending
Fraction Division
AI Pick · Weak spot
AI
Newton's Laws
Science · Done ✓
Done
See it in action

From stroke to insight,
in 30 seconds

Watch ThinkTrace analyze a real handwriting session — every pause, every eraser, every hesitation surfaced as a heatmap.

0:30
Student's strokes
Where you got stuck
Demo · Coming Soon
Features

Everything you need to
understand yourself

ThinkTrace doesn't just record — it reveals the patterns in how you think and where you get stuck.

Stroke Timestamp Analysis
Every pen stroke is recorded with millisecond precision. Pauses, hesitations, and eraser clusters reveal exactly where your thinking breaks down.
Heatmap Visualization
See your stuck zones as a color overlay on your own canvas. Red = high struggle. Your weaknesses become visually obvious, not just numbers.
Weekly Weak Spot Report
Accumulated data across sessions shows which problem types consistently slow you down. Turn individual sessions into long-term learning intelligence.
Challenge Mode & XP
Fixed problem sets with global rankings. See how your solve speed compares to everyone who solved the same problem. Learning feels like a game.
Teacher Connection
Connect to 판서로 or Thinkboard.live to receive problems directly from your teacher and compare your solving flow with theirs step by step.
Any Subject, Any Level
Math, science, language, history — if you can write it by hand, ThinkTrace can trace it. Free Mode works for any worksheet, textbook, or teacher assignment.
How it works

Four steps to
know yourself better

01
Get a Problem
Receive a challenge from your teacher, pick an AI-recommended problem based on your weak spots, or load any worksheet by photo.
02
Solve by Hand
Write your solution naturally on the canvas. ThinkTrace quietly records every stroke and timestamp in the background.
03
Instant Analysis
Tap Done. In seconds you see a timeline, heatmap, and step breakdown showing exactly where you paused, erased, and struggled.
04
Track & Improve
Weekly reports accumulate your patterns. Over time ThinkTrace shows your growth and surfaces the exact concepts that need more practice.
Two Modes

Learn your way,
or challenge the world

ThinkTrace adapts to how you want to study — free and personal, or competitive and structured.

Free Mode
Your pace.
Your problems.
Solve any problem from any source — worksheets, textbooks, teacher assignments. ThinkTrace records and analyzes your personal learning journey.
Any subject, any worksheet
Personal progress tracking
Teacher connection optional
Offline analysis, no AI needed
Challenge Mode
Fixed problems.
Global leaderboard.
Solve the same curated problems as students worldwide. See how your speed and accuracy compare, earn XP, level up, and build unbreakable study habits.
Daily curated problem sets
Global ranking & comparison
XP, badges & level system
Streak system, daily habit
Pricing

Start free.
Unlock everything.

No credit card needed to start. Upgrade when you're ready to go deeper.

Monthly
$19.99
per month
Unlimited problems
Full analysis & heatmap
Weekly reports
Challenge Mode
Teacher connection
BEST VALUE
Annual
$9.99
per month, billed annually
Save 50% vs monthly · 1 day free trial
Everything in Monthly
Priority new features
Exclusive XP multiplier
판서로 / Thinkboard.live free link
Lifetime
$249
one-time payment
Pay once, own forever
Everything, forever
All future updates
No subscription ever
Early supporter badge
🇰🇷 Korean pricing: Annual ₩119,000/yr · Monthly ₩24,900/mo · Lifetime ₩350,000 · Available on Google Play
Download

Ready to trace
your thinking?

ThinkTrace is a mobile app for Android and iOS tablets and phones. Download free and start your first session today.

Get it on
Google Play
Download on the
App Store

ThinkTrace is a mobile-first app. This website is for information only.
For the best experience, download on your Android tablet, phone, or iPhone.