Study like you know.Find out if you do.

StudyLens finds out what you actually understand, not what you think you do. Upload your notes or start from zero; it builds you a study plan around exactly what needs work.

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Kim Chi - your study companion
Kim ChiYour study companion
Used by students at
University of OxfordUniversity of CambridgeUCLImperial College LondonKing's College LondonUniversity of WarwickLondon Business SchoolUniversity of SouthamptonUniversity of Portsmouth
400+Students in early access
11Universities represented
21ptsAvg score lift after 5 sessions
92%Complete their first gap reveal
84
Actual score
Δ47
37
Predicted score

Simulated session data. Your gap will vary.

Your confidence vs reality

Your confidence versus your reality.

Every question becomes a data point. Amber: calibrated. Rose: overconfident. Most students start far from the diagonal. Then, session by session, they move toward it.

Confidence vs Accuracy scatter chartPREDICTED SCOREACTUAL SCOREΔ47CalibratedOverconfident

Your calibration arc

Session 1Day 1
Δ0

The wake-up call. Blind spots everywhere.

Session 3Day 5
Δ0

Getting honest with yourself.

Session 5Day 9
Δ0

Calibrated. You know what you know.

Simulated across 3 topics. Your improvement rate will vary.

How it works
01Upload your notes

PDF, image, or paste. StudyLens extracts every concept you need to know.

02Predict your score

For each concept, predict how you'd do. 1 to 5. No peeking. Be honest.

03Get quizzed

Adaptive questions surface what you actually know, not what you think you know.

04See the gap

The delta between prediction and performance. This is where studying actually starts.

Backed by & built on
Y CombinatorElevenLabsElevenLabs Startup GrantsAnthropicGoogle GeminiVercelNext.jsMongoDBGoogle CloudClerkPostHogSentryResendCloudflareDeepgram

Close the gap.
Know what you know.

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StudyLens - Know What You Don't Know