Meet QuizBooster: Your Ultimate Study Companion.
Bring your textbooks, class notes, custom flashcards, and tailored practice tests into one clean companion. No scattered files, no apps to juggle—just learning on your terms.
No credit card required
Studying Shouldn't Feel Like Juggling Five Different Apps
Most students waste hours hunting down files and copying links. QuizBooster brings everything into one place.
Scattered Folders → Dedicated Studyspaces
Notes in cloud drive, books on desktop, and homework links lost in browser bookmarks.
Every course gets a dedicated room where textbooks, notes, and questions live together.
Endless PDF Scrolling → Centralized Lookups
Pressing Ctrl+F through 90-page review PDFs hoping to find a past question.
Search across question prompts, answer choices, and explanations in one unified place.
Rigid Pre-made Quizzes → Tailored Practice Tests
Generic online quizzes that test either too much or not what you need today.
Build practice tests by exact topic, difficulty level, question formats, and time limits.
Three Pillars. One Seamless Companion.
Designed around how students actually absorb, organize, and practice information.
Studyspaces
A dedicated space for every subject
Keep courses like 'Biology 101', 'Calculus II', and 'World History' cleanly segmented and shareable.
- Clean course & semester segmentation
- One-click sharing with study buddies
- Color-coded tags and fast favorites
Study Resources
Store, read, and annotate everything
Open PDFs and notes in-app with built-in highlighter, pen tools, and KaTeX math.
- Upload PDFs, EPUBs & MOBIs
- In-app PDF highlighter & pen tools
- 334,233+ Explore assets ready to import
Study Boosters
Active engines for real mastery
Transform static documents into searchable question libraries, flashcards, practice tests, and timers.
- Deep question library search
- Active recall with confidence grading
- Persistent floating Pomodoro and other timers
Find Any Question Across All Your Materials
Stop digging through giant review PDFs before an exam. Lookups indexes your entire question library so you can search prompts, correct answers, or distractors without opening a single document.
Practice Tests Built Entirely on Your Terms
You decide how you train. Build a rapid 10-question multiple-choice review or a 45-minute exam simulation mixing matching pairs, formulas, and written essays.
Multiple Choice
Instant scoring & verification
True / False
Fast conceptual verification
Matching Pairs
Interactive connector lines
Open-Ended
QuBit AI answer assessment with partial crediting
Study Deeply Without Context Switching
All your active study tools live right inside QuizBooster.
Smart Flashdecks
Active recall on demand
Build decks from any subject with 3-state mastery scoring (Mastered, Uncertain, Incorrect) to automatically review weak spots.
- 3-state confidence scoring
- Reverse recall (answer → prompt)
- Deterministic deck building
In-Browser Reader (Reads)
Read, annotate, and highlight PDFs
Open textbooks and homework PDFs right in QuizBooster with smooth page bookmarks and freehand pen annotations.
- In-app PDF reader & annotations
- Upload PDFs, EPUBs & MOBIs
- Syncs reading positions
Floating HUD Timers
Stay in the flow
An always-accessible floating timer that stays with you across every tool with countdowns and Pomodoro intervals.
- Pomodoro intervals (25/5 and custom)
- Custom stopwatches & alarms
- Audio warning chimes
Never Start with a Blank Screen: 334,233+ Ready Materials
Jump straight into studying. Explore Hub comes pre-loaded with over 214,087+ flashcards and 120,146+ verified questions authored and maintained by QuBit. Pull items into your Studyspaces or share curated bundles with Booster Buddies.
100% Ready on Day One
Search by subject in the Explore Hub and drill flashcards or take tests immediately with zero setup.
One-Click Studyspace Sharing
Bundle notes, flashcards, and homework sets into a Studyspace and share the entire room with a link.
Non-Destructive Buddy Sharing
Explore and favorite peer materials without editing or cluttering your buddy's original files.
Explore Pre-Loaded Curriculums
Thousands of questions & flashcards per topic across 2,600+ subjects. Click any subject to launch practice tests immediately.
Mathematics
24.6K itemsComputer science
23.8K itemsMedicine and health
20.1K itemsPsychology
14.6K itemsBusiness
5.8K itemsHistory
14K itemsMeet QuBit: Your 24/7 AI Study Assistant
Studying alone shouldn't mean guessing whether your written answers hit the mark. QuBit assesses open-ended responses against sample solutions and problem difficulty—awarding partial credit and delivering clear explanatory feedback so you understand exactly why you earned that score and how to improve.
✓Curriculum Builder & Explore Library
Continuously authors and maintains thousands of verified questions and flashcards across standard academic subjects.
✓Open-Ended Answer Assessment & Feedback
Evaluates written answers (up to 200–250 words) against sample solutions and difficulty, providing a percentage score with clear feedback explaining why you received that score.
✓24/7 Safety & Community Moderation
Instantly reviews flagged materials and keeps your study spaces respectful, positive, and distraction-free.
Study at Your Desk. Review on the Go.
QuizBooster is engineered for seamless cross-device continuity. No separate mobile apps to buy, no clunky sync delays. Pick up on your phone right where you paused on your laptop.
At Your Desk — Deep Focus
Read multi-column textbooks, annotate PDFs, and construct custom practice tests with KaTeX STEM formulas on your laptop or monitor.
In the Classroom & Library — Fast Lookups
Search question prompts and verify answers on demand on your tablet or laptop during study groups and review sessions.
On the Move — Rapid Recall
Run 5-minute active recall flashcard drills with 3-state confidence scoring on your phone while walking to class or on your commute.
Built for Students. Trusted by Parents.
Learning should be positive, respectful, and secure. QuizBooster gives students and their families total control over their data, privacy, and community experience.
Granular Profile Privacy & Ghost Mode
Students can hide their avatar, 'About Me' bio, or make their entire profile completely invisible from buddy search so they study with total peace of mind.
User Blocking & Peer Controls
Confirmation-protected block and unblock controls ensure learners have intentional, complete authority over who can view their public resources or connect as a study buddy.
QuBit 24/7 AI Moderation & Takedowns
When content is flagged, QuBit moderates and removes violations in seconds. Repeat and serial offenders are immediately suspended.
Designed for learners ages 13+: QuizBooster strictly enforces student data protection, transparent community standards, and distraction-free learning environments.
Simple, Student-Friendly Pricing
Free forever for core studying. Upgrade only when you need massive cloud storage and power AI quotas.
Free Forever
StarterIdeal for students starting out or keeping core subjects organized.
- Unlimited community Explore Hub access
- 512 MB personal cloud storage
- 10 MB max file size upload
- Up to 5 custom Studyspaces (Course Rooms)
- Up to 10 user-uploaded Books, Notes & Homeworks each
- Up to 100 personal Flashcards & 100 Questions
- 10 Lookups, 10 Test Decks, 20 Active Sessions
- Flashcard creation & PDF annotation tools
- Public sharing with study buddies
QuizBooster Plus
Power learners, college students, and active study groups.
- Unlimited community Explore Hub access
- 5 GB high-capacity storage
- 16 MB max file size upload
- Unlimited custom Studyspaces
- Unlimited personal Books, Notes, PDFs & Homeworks
- Unlimited personal Flashcards & Practice Questions
- Unlimited Lookups, Custom Tests & Sessions
- Private & Public items + Direct Buddy Sharing
- Generous QuBit AI Credits
- Advanced AI Summaries & Open-Ended Test Assessment
Frequently Asked Questions
Everything you need to know about getting started, features, and platform policies.
Who is QuizBooster built for?
Learners ages 13+ from middle school through high school, college, and lifelong independent studies.
How does QuizBooster differ from Google Drive or Dropbox?
Cloud drives only store files passively. QuizBooster turns notes and books into active practice tests, flashcards, annotated readings, and searchable question banks.
How do Custom Practice Tests work?
You choose the subject, difficulty level, time limit, and question types (multiple choice, true/false, matching pairs, and open-ended).
What is the Lookups feature?
A dedicated search engine indexing questions and answer keys across all your study materials so you can find exact prompts and answers without manual skimming.
Does QuizBooster support math and science formulas?
Yes, formulas render natively using KaTeX LaTeX notation across notes, prompts, and answer choices.
How does QuizBooster protect student safety and privacy?
Students can make profiles completely invisible from search, hide photos and bios, and block any user. QuBit AI moderates reported content 24/7, removing violations in seconds and suspending serial offenders.
Is the Free tier really free?
Yes. Core features are 100% free forever with no credit card required.