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AP Bio · Pre-Med · Nursing · MCAT

You Know More Biology
Than You Think.

A 12-question diagnostic finds exactly where your gaps are — so you stop re-reading chapters you already know and start drilling the ones that matter.

Find Your Weak SpotsSee how it works
NucleusChloroplastMitochondriaCentral VacuoleCell Wall

Plant cell — organelles appearing as you study them

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14,200+

Students diagnosed

73%

Score improvement in 3 weeks

1,247

Practice questions

4.9 / 5

Average student rating

92%

Pass rate, nursing students

The Study Path

Four stages.
One clear path.

Each card flips to reveal exactly what's inside — no mystery, no filler.

1

Find Your Gaps

Know where you stand before you start.

  • 12-question adaptive diagnostic
  • Covers all AP Bio units
  • Takes under 8 minutes

Hover to see inside →

What you'll discover

Topics assessed8 core units
Difficulty levels3 tiers
Time to complete~7 minutes
OutputPersonal topic map
Step 1 of 4
2

Build Your Map

See the whole picture, then zoom in.

  • Visual concept web per unit
  • Highlights your green/amber/mauve zones
  • Links to targeted drill sets

Hover to see inside →

Inside your map

Concept nodes200+ linked
Connections shownCross-unit links
Update frequencyAfter each session
ExportPDF or share link
Step 2 of 4
3

Drill the Details

Targeted practice, not random review.

  • 1,200+ practice questions
  • Sorted by your gap zones
  • Spaced repetition built in

Hover to see inside →

The drill bank

Total questions1,247
Flashcard sets84 decks
Mnemonic packs32 topics
Avg session18 minutes
Step 3 of 4
4

Simulate the Exam

Full-length mock under real conditions.

  • AP Bio & MCAT format mocks
  • Timed, scored, explained
  • Predicted score range included

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Mock exam details

Full-length mocks6 exams
Questions each60 AP / 59 MCAT
Detailed explanationsEvery question
Predicted scoreIncluded
Step 4 of 4
"Figured out in 7 minutes that I'd been studying the wrong half of cellular respiration."— Priya M., Pre-med freshman, UMich✦
"The Krebs cycle finally clicked after the mnemonic pack. I'd been staring at Campbell's for three weeks."— Jordan T., AP Bio, junior✦
"Got a 5. The diagnostic told me exactly what to ignore and what to drill."— Sofia R., AP Bio 2025✦
"Used it the week before clinicals. Passed the assessment with margin to spare."— Marcus O., Nursing student, NYU✦
"It's like having the smartest kid in the library explain it to you without the attitude."— Ananya K., Pre-med sophomore✦
"My topic map was basically a confession of everything I'd been avoiding."— Liam C., AP Bio, senior✦
"Figured out in 7 minutes that I'd been studying the wrong half of cellular respiration."— Priya M., Pre-med freshman, UMich✦
"The Krebs cycle finally clicked after the mnemonic pack. I'd been staring at Campbell's for three weeks."— Jordan T., AP Bio, junior✦
"Got a 5. The diagnostic told me exactly what to ignore and what to drill."— Sofia R., AP Bio 2025✦
"Used it the week before clinicals. Passed the assessment with margin to spare."— Marcus O., Nursing student, NYU✦
"It's like having the smartest kid in the library explain it to you without the attitude."— Ananya K., Pre-med sophomore✦
"My topic map was basically a confession of everything I'd been avoiding."— Liam C., AP Bio, senior✦
12-Question Diagnostic

Find Your
Weak Spots.

Questions start with organelle identification and escalate to experimental prediction. Takes about 7 minutes. You'll get a personal topic map at the end — green zones, amber zones, and the mauve gaps worth your attention.

Cell StructurePhotosynthesisCellular RespirationGeneticsEcologyMolecular Bio

No signup required. Results appear inline.

"Figured out in 7 minutes that I'd been studying the wrong half of cellular respiration."— Priya M., Pre-med freshman, UMich✦
"The Krebs cycle finally clicked after the mnemonic pack. I'd been staring at Campbell's for three weeks."— Jordan T., AP Bio, junior✦
"Got a 5. The diagnostic told me exactly what to ignore and what to drill."— Sofia R., AP Bio 2025✦
"Used it the week before clinicals. Passed the assessment with margin to spare."— Marcus O., Nursing student, NYU✦
"It's like having the smartest kid in the library explain it to you without the attitude."— Ananya K., Pre-med sophomore✦
"My topic map was basically a confession of everything I'd been avoiding."— Liam C., AP Bio, senior✦
"Figured out in 7 minutes that I'd been studying the wrong half of cellular respiration."— Priya M., Pre-med freshman, UMich✦
"The Krebs cycle finally clicked after the mnemonic pack. I'd been staring at Campbell's for three weeks."— Jordan T., AP Bio, junior✦
"Got a 5. The diagnostic told me exactly what to ignore and what to drill."— Sofia R., AP Bio 2025✦
"Used it the week before clinicals. Passed the assessment with margin to spare."— Marcus O., Nursing student, NYU✦
"It's like having the smartest kid in the library explain it to you without the attitude."— Ananya K., Pre-med sophomore✦
"My topic map was basically a confession of everything I'd been avoiding."— Liam C., AP Bio, senior✦
Your Study Plan

Tell us when.
We'll map the path.

Give us your name and exam date. We'll build a day-by-day prep calendar that hits your gap zones first and saves your mastery zones for review week.

The coffee's getting cold.
The Krebs cycle won't wait.

Join 14,200+ students who found their gaps and closed them before the exam.

Start the Diagnostic — It's Free