Familiarity ≠ understanding.
You recognize the answer, but you cannot explain it without your notes in front of you.
Built on the Feynman Technique
Learn it by teaching it out loud.
TeachBack AI listens while you explain your notes out loud, then shows what you actually understand, what you missed, and exactly what to study next.
Built for students who want to stop rereading and start understanding.
iPad & Tablet Coming SoonDesktop Coming SoonPrivate by defaultNo spam
Current Session
LiveBiology · Mitosis
Uploaded notes5 concepts
- Mitosis vs Meiosis
- Phases: Prophase → Anaphase
- Cytokinesis details
- Cell-cycle checkpoints
Teaching out loud
04:28? Mark confusionWarm-up questions3 prompts
- 1
Explain mitosis vs meiosis in one sentence.
- 2
What ends prophase?
- 3
Why do checkpoints exist?
Weekly study plan7 days
MTWTFSS
48%
Session results87 / 100
B+Feynman verdict
Strong intuition. One key constraint still needs a clearer explanation.
✓ Strength Core idea explained↗ Gap Limiting case skipped
Retention72%
XP earned+1205 day streak
3simple learning steps
7–21day study plans
1clear feedback loop
From notes to knowing
See the whole feedback loop at a glance.
One focused workspace takes you from raw material to targeted review.
01Upload notes from any source
02Explain in your own words
03Review only the gaps
T
Cell Biology / Current Session
MitosisProphaseMetaphaseAnaphaseCytokinesis
Teaching out loud
04:28? Mark confusionSession results87 / 100
B+Feynman verdict
Strong intuition. One key constraint still needs a clearer explanation.
✓ Strength Core idea explained↗ Gap Limiting case skipped
The problem
Rereading notes feels productive.
It usually is not.
You miss the gaps.
You study for hours, but the weak spots stay invisible until the exam reveals them.
No feedback loop.
You do not know what you actually forgot until you have already lost the points.
Across your timetable
Any subject. One way to prove you understand it.
Upload the material you are learning and explain it in your own words. TeachBack helps reveal what is clear, what is incomplete, and what needs another pass.
BiologyChemistryPhysicsMathematicsComputer SciencePsychologyHistoryGeographyPhilosophyEconomicsBusinessHealth SciencesAstronomyEthicsMedia StudiesEngineeringLawLiteraturePolitical Science
Political ScienceLiteratureLawEngineeringMedia StudiesEthicsAstronomyHealth SciencesBusinessEconomicsPhilosophyGeographyHistoryPsychologyComputer ScienceMathematicsPhysicsChemistryBiology
The research
Rereading feels safe.
Retrieval proves what you know.
Students often feel prepared because their notes look familiar. Real understanding means being able to explain the idea without help.
Research note
Individual results vary. TeachBack applies retrieval-practice principles; it does not promise specific grade improvements.
61%Recall after retrieval practice40%Recall after restudying≈50%Higher relative recall
Roediger & Karpicke, 2006
In the cited study, retrieval-practice students remembered about 61% after one week, compared with about 40% among students who restudied.
Read the study ↗Psychological Science in the Public Interest
A major review rated practice testing and distributed practice as high-utility, while rereading and highlighting received lower utility ratings.
Read the review ↗Active self-explanation works — but only if you know where you are wrong.
TeachBack adds the missing feedback loop: explain it out loud, find the gaps, and know exactly what to study next.
How it works
TeachBack turns studying into proof of understanding.
Three steps. No quizzes to write. No flashcards to maintain.
01
Start with your material
Upload your notes
Use camera OCR, your photo gallery, a PDF, or pasted text. TeachBack pulls out the key concepts.
↑Drop your study material
TeachBack pulls out the concepts that matter.
↟PDF⌑Photo◉CameraTPaste text
Cell Biology — Week 412 pages · ready
✓02
Use your own words
Teach the topic out loud
Explain it like you are teaching a curious 12-year-old. Use your own words and mark moments of confusion as you go.
04:28Teaching Mitosis
5 concepts heard
03
Close the loop
Get your gaps, score, and plan
See what you explained clearly, what you missed, and a personalized study plan for the next 7–21 days.
87/ 100+6 this week
Strengths
✓ Core idea explained
✓ Correct example used
✓ Good causal reasoning
Gaps to review
↗ Limiting case skipped
↗ Mixed two terms
↗ One formula recall
Weekly study plan7 days
MTWTFSS
48%
Inside the app
Everything you need to study with receipts.
01
AI Teaching Evaluation
Your spoken explanation is compared against your notes and key concepts to produce useful, specific feedback.
“Mitosis creates two genetically identical cells…”Concept covered“…while meiosis reduces the chromosome count.”Clarify this constraint
02
Warm-Up Questions
Three quick prompts activate your thinking before you start teaching.
1Explain it in one sentence✓
2Name the turning point✓
3Why does it matter?→
03
Personalized Study Plan
A 7, 14, or 21-day plan with specific tasks, methods, and time estimates.
Weekly study plan7 days
MTWTFSS
48%
Today · 15 minRe-teach checkpoint control
Friday · 10 minQuick retrieval review
04
Socratic Tutor
An AI tutor that guides you with questions instead of immediately handing you the answer.
I keep mixing up metaphase and anaphase.
TeachBack What changes about the chromosomes between those two phases?
05
XP, Streaks & Weekly Goals
Build consistency through levels, streak tracking, and realistic weekly targets.
620XP
5 day streak
Weekly goal: 4 / 5
06
Spaced Repetition & Retention
Sessions return before the material fades. Retention indicators show what needs attention.
Needs review todayCell-cycle checkpoints
Teach it your way
Wherever your notes start, your learning stays active.
Whether your notes start as a photo, a PDF, a lecture outline, or pasted text, TeachBack turns them into an active learning session.
Scan handwritten notesUpload a PDFPaste class materialRecord an explanationMark a confusing momentAsk the Socratic tutorReview only your gapsFollow your study plan
01Notes in
→PDF · Photo · Text
02Teach out loud
→||||||||
03Gaps out
2 concepts to review
iPad & Tablet App Coming Soon
TeachBack, built for the screen you already study on.
Upload your notes, teach the lesson out loud, review your gaps, and follow your study plan from one focused workspace.
TCell Biology · MitosisFocused Mode
Uploaded notesMitosis vs MeiosisCell-cycle checkpointsCommon exam pitfalls
Teaching out loud
04:28? Mark confusionLive concept coverage4 / 5
Session results87 / 100
B+Feynman verdict
Strong intuition. One key constraint still needs a clearer explanation.
✓ Strength Core idea explained↗ Gap Limiting case skipped
- ✓ Camera and gallery note import
- ✓ PDF and pasted-text support
- ✓ Spoken teaching sessions
- ✓ AI gap detection
- ✓ Personalized study plans
- ✓ Retention tracking
Desktop App Coming Soon
Your full study dashboard, coming to desktop.
Organize material, review session history, compare progress, and build your next study plan from a larger workspace.
Study dashboard
Good afternoon, Alex.
Retention overview72%
Weekly study plan7 days
MTWTFSS
48%
Recent sessions
Mitosis87
Cell Respiration81
DNA Replication76
?
Socratic tutor
What would happen if the spindle checkpoint failed?
Phone App Planned
Quick reviews wherever you are.
A phone experience is planned for short reviews, retention reminders, and progress checks.
Today’s review
Cell-cycle checkpoints
72%retention
Make it yours
What your session could look like.
This is a visual product preview based on sample selections, not real user data.
Visual demo · Sample dataBiology
Cell Biology · Mitosis
Overall score82 / 100
Grade B+9 vs last session72%Retention+140XP5Day streak
Feynman verdict
You explained the core idea clearly. One edge case is missing, and two similar terms became blurred together. A focused 15-minute review should close the gap.
Strengths
✓ Solid intuition
✓ Correct example
✓ Clear reasoning
Gaps to review
↗ Clarify the limiting case
↗ Separate similar terms
↗ Re-teach once tomorrow
Trust & security
Built like a serious product.
Not a weekend prototype.
Your study material is private. Your account should be too.
Secure authentication
Passwords are designed to be hashed, sessions expire, and reset tokens remain short-lived. Authentication secrets never belong in browser code.
Protected user data
Protected product requests will verify ownership before reading, modifying, or deleting a user resource.
Secrets stay server-side
The Make webhook URL and any API credentials remain in protected server environment variables and never enter the client bundle.
Bot and spam protection
The current waitlist uses honeypot protection, server-side validation, and a rate-aware endpoint.
Secure deployment
Production traffic is HTTPS-only on the hosting platform, with structured error handling and no webhook credentials in the client.
Privacy-first waitlist
The current form stores only early-access details and consent metadata. TeachBack does not sell waitlist information.
Our ship-secure checklist
Specific controls. Plain language.
- Secure authentication and expiring sessions
- Ownership checks on protected endpoints
- Secrets stored server-side
- Abuse-resistant form endpoints
- HTTPS, monitoring, and anomaly logging
- Minimal collection of personal data
Early access
Find your gaps before the test does.
Join the waitlist for early access to TeachBack AI.
Early invites sent in batchesYour email stays privateBuilt for serious learners
Frequently asked
Questions, answered.
The short version: TeachBack helps you prove understanding, without pretending the product has already launched.
TeachBack is being designed for high school, college, and university students who want to understand material instead of repeatedly rereading it.
Your next study session
Ready to prove what you know?
Teach the lesson, reveal the gaps, and study what actually needs your attention.
iPad and tablet coming soon. Desktop coming soon after.