Science
STEMSafe, hands-on experiments and real chemistry — bubbling beakers, reactions and the “why” behind them, explained at a kid’s pace.
ExperimentsReal chemistryThe “why”
Studyfin — The AI Learning Platform for Pre-K–12
🦉 Studyfin Polymath · Pre-K–12
The AI tutor that adapts when your child is stuck
One tutor for every subject — adaptive lessons & real state-test practice, Pre-K–12.
First month freethen $19.99/mo · cancel anytime
🔬 Science
Real science, made to click
Hands-on experiments and the “why” behind them, explained at your child's pace.
First month freethen $19.99/mo · cancel anytime
💻 Coding
Learn to code, step by step
Friendly blocks and real code — problem-solving that carries into every subject.
First month freethen $19.99/mo · cancel anytime
📚 16 subjects
One tutor, every subject
Reading, math, science, coding and more — all in one place, Pre-K–12.
First month freethen $19.99/mo · cancel anytime
🔒 COPPA-aligned privacy
🛡️ Background-checked tutors
🤖 Powered by Google Gemini
💳 Secure payments via Stripe
✨ First month free · cancel anytime
Sponsored · Featured tutors
Meet some of our standout tutors
A few featured educators on Studyfin. These are sponsored placements.
🔬 STEM, made to click
Watch STEM come alive
Not worksheets — experiments, code and discovery kids can see. Scroll to stack them up.
Math
CoreFrom counting to algebra, Finn breaks every problem into steps, reacts the moment a child is stuck, and turns practice into a game.
Step by stepAdaptiveGamified
Coding
Future-readyKids build with friendly blocks and real code, guided step by step — problem-solving that carries into every other subject.
Blocks & codeGuidedProblem-solving
Space
DiscoverySpace and the world beyond — Finn turns big questions into little discoveries kids can’t wait to explore.
AstronomyBig questionsWonder
Biology
Life sciencePlants, animals and the human body — life science kids can poke, grow and wonder about, not just memorize.
NatureHuman bodyHands-on
Engineering
BuildGears, blocks and little robots — hands-on engineering that turns “what if” into “I made it work.”
Build & testRoboticsDesign
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Subjects, Pre-K–12
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Skills mapped to standards
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Verified state-test questions
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Real test blueprints
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Questions cross-checked
Meet the tutor
Your child gets a private AI tutor who never tires
Animated lessons, voice questions and instant explanations — with guardrails that keep every conversation on the lesson.
Live
½ + ⅓ = ⅚
Why do we need a common bottom? 🤔
Picture two pizzas 🍕 — one cut in halves, one in thirds. The slices aren't the same size! We cut both into sixths so we can add them.
ohhh that makes sense!
100%Fractions mastered
+50 XP🔥 7-day streak
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Pick a topic, any topic
16 subjects, 350+ topics — auto-filtered to your child's grade.
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Gemini AI builds the lesson
A fresh adaptive lesson — explanation, animated diagrams, worked example.
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Ask the tutor anything (out loud!)
Stuck? Tap the mic and ask — Finn explains in plain language, on-topic only.
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Master & level up
Pass the quiz → difficulty bumps, XP and streaks grow. Parents see every win.
Why it works
Built on the science of adaptive learning
Studyfin combines spaced practice, immediate feedback, and multi-modal explanation — proven drivers of long-term retention.
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Subjects covered
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Topics Pre-K–12
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Re-teach attempts per topic
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AI-generated, every time
Standards-aligned
Mapped to the standards your school trusts
Every Math & English topic maps to the Common Core (CCSS); Math, ELA, Science & Social Studies also map to exact Texas TEKS codes, K–12. Downloadable alignment reports for both.
📋 Curriculum Standards Compliance Report
For your curriculum team: what we align to (CCSS · TEKS · reading level), how it's enforced on every item, and how to verify it.
Common Core (CCSS)
118 Math & ELA topics, Kindergarten–Grade 10, mapped to exact CCSS codes (e.g. 3.OA.A.1, RF.K.3.A).
Texas (TEKS) — exact codes
99% of K–12 topics map to exact TEKS or CCSS codes — over 680 distinct TEKS student-expectation codes across Math, ELA, Science & Social Studies (e.g. C.9(A), USH.7(C)). Every high-school course is fully mapped: Biology, Chemistry, Physics, U.S. & World History, Government, Economics & Geography.
Pre-K ready
Pre-Kindergarten aligned to the 2022 Texas Prekindergarten Guidelines — school-readiness across early literacy, math, science & social studies.
Read at the right level — every time
Every lesson & quiz is checked for grade-level reading difficulty — using Flesch–Kincaid and our own Studyfin Readability Index (SRI) — and rewritten if it reads too hard. Kids are tested on the concept, not on reading ability.
International reading levels (CEFR)
Reading levels also map to the CEFR framework (A1–C2), so content holds up to international benchmarks — not just U.S. grade levels.
Mappings prepared by Contribute AI LLC and reviewed against the published CCSS, TEKS & CEFR — not an endorsement or certification by CCSSO, NGA, the Texas Education Agency, or the Council of Europe. The Studyfin Readability Index is independently developed.
🎯 State test practice
Built to your state's real test blueprint
Full-length practice for STAAR, FAST, CAASPP and every other state — matched to each test's reporting categories and scored in your state's own performance levels. 1,100+ questions, each cross-checked by two independent automated solvers that must agree before it ships, so a question with a disputed answer never reaches a child.
Blueprint‑accurate
Each practice test mirrors your test's reporting categories and item weights — the same shape as the real thing (STAAR blueprints, Smarter Balanced, B.E.S.T.).
Every question cross‑checked
Each item is independently re‑solved by separate automated checks — we keep only the questions they agree on, each tied to a real standard.
Scored your state's way
Results come back in your state's own performance levels, broken down by reporting category so you know exactly what to practice next.
Texas — STAAR ✓ Verified bank
Built to the official STAAR blueprint & TEKS — Math, Reading, Science & Social Studies — scored Did Not Meet · Approaches · Meets · Masters.
Florida — FAST ✓ Verified bank
Built to the B.E.S.T. reporting categories, scored to Achievement Levels 1–5.
California — CAASPP ✓ Verified bank
Built to Smarter Balanced claims & Common Core — plus CAST Science (NGSS) and Spanish (CSA). Scored Not Met → Exceeded, shared across all 13 Smarter Balanced states.
Spanish-language practice ✓ Verified
Full Spanish-language reading practice — passages & questions written and checked in Spanish — for California CSA and Texas STAAR Spanish, grades 3–8. Built for dual-language & bilingual programs.
+ every other state ✓ Verified
NY, Georgia Milestones, MCAS, M‑STEP, IAR, CMAS, LEAP and more — Common Core states share our verified Math & Reading bank, under each state's real test name. All 50 states + DC.
🔍 How we keep it accurate
Every question is written to the exact standards your test assesses, then independently re‑solved by two separate automated checks — we keep only the ones both agree on. Our most recent full audit re‑solved all 1,300+ questions from scratch and found zero incorrect answer keys. Authentic item types throughout — multiple‑choice, select‑all and type‑in. (Questions are AI‑generated and machine‑checked — aligned to each state's standards, not official test items.)
📋 See our full state alignment report
Every state, its test, standards & performance levels — the report you can show your child's teacher.
Practice is aligned to the standards each state's test assesses — not official test items. Performance levels are estimates modeled on each state's published scale. Test names are property of their respective state education agencies; Studyfin is not affiliated with or endorsed by them.
Every subject, every grade
16 subjects · 2,600+ skills · Calibrated to your child's grade
Core academics aligned to CCSS & TEKS, plus world languages, health, life skills and coding — from counting blocks to calculus, phonics to Python.
🔤 Pre-K & Kindergarten
Learning to read? It starts with phonics
For the youngest learners, Finn teaches letters, sounds, sight words and early English — decodable practice, picture games and gentle read-aloud that build real, confident readers, at a Pre-K/K pace.
🔤 Letters & sounds🧩 Blending & decoding👀 Sight words🔊 Read-aloud📖 Early English
🚀 Start your reader free
Everything in your plan
More than lessons — a whole learning home
Motivation for kids, control for parents, human help on tap. Tap any card for details.
Write-to-learn handwriting
Kids answer by hand right inside lessons and practice tests — Studyfin reads their writing instantly and privately on the device, checks the answer, and coaches neat handwriting (size, slant, spacing, reversed letters). It even reads fractions, equations and chemistry formulas, works with no pen (just type), and learns each child's handwriting over time. Try it →
Letter & number tracing
Dotted-line tracing that teaches little hands to form letters, numbers and first words — upper- and lower-case, PreK through grade 5 — building real writing skill, not just tapping.
Free Writing, coached by Finn
Open-ended writing prompts kids answer in their own words. Finn reads what they wrote and gives warm, specific feedback — praise plus one next step — so writing grows. Never marked wrong.
Learning games
Skill-building games across math, reading, science & more — number lines, spelling races, drag-and-drop, balloon pop and dozens more — so practice feels like play. Grades PreK–12, with the same questions as our practice sets.
Learn to Read (phonics)
A structured early-reading path — letter sounds, blending, sight words and decodable practice — with a quick placement check and a parent guide. Built for PreK–2.
AI study tools
A mistake notebook that captures what a child gets wrong in tests and turns it into targeted practice, plus concept maps, note summaries and exam prep — each aware of exactly what they're working on.
State-test practice
Full-length practice built to your state's real test blueprint — STAAR, FAST, CAASPP & every Common Core state — every question independently cross-checked, scored in your state's own levels. Try it →
Homework Helper
Stuck on real homework? Finn gives guided, step-by-step help that teaches the method — not just the answer. (Family plans)
Live human tutors, built in
One-on-one and small-group sessions with vetted teachers, right inside Studyfin — with parent-present video safety.
Adaptive path + placement
A 2-minute level check places each child, then a mastery-gated path shows what to learn next at the right difficulty.
Daily Review (spaced repetition)
Mastered topics resurface at growing intervals so they stick — the dashboard shows exactly what's due each day.
Interactive manipulatives
Hands-on widgets in every lesson — drag a number line, shade fractions, build arrays. Learning by doing.
Goals, streaks & badges
Daily goals, 🔥 streaks, XP levels and mastery badges keep kids coming back.
Premium voice + voice input
Natural narration reads lessons aloud, and kids can ask out loud with the mic.
Parent dashboard
Per-child "this week at a glance" — lessons, time, mastery and quiz-accuracy growth, plus exactly what to revisit.
Printable progress reports
One-tap report card (month, term or year) with stats and standards coverage — print or save as PDF for conferences & homeschool records.
Accessibility built in
Dyslexia-friendly font, high contrast, reduce-motion, adjustable text, keyboard nav and read-aloud. WCAG / Section 508-aligned.
Group-class marketplace
Browse small-group live classes by subject, grade & location — vetted teachers, lower per-seat price, same video safety. Browse classes →
How families use Studyfin
Whatever your kid is going through, Studyfin meets them there
Adaptive isn't one-size-fits-all — here's how Studyfin shows up for three very different students. Illustrative examples, not real customer reviews.
Maya, 4th grade
"I kept getting the same kind of problem wrong. Studyfin showed me with pizza slices and now I get it."
- Quizzes shrink to the right size
- Re-teach uses concrete visuals
- Mastery is celebrated, not graded
Alex, 7th grade
"After I got 100% twice, Studyfin bumped me to pre-algebra. School is finally interesting again."
- Difficulty band grows with mastery
- Stretches into harder topics on its own
- Tracks deep mastery, not surface answers
Dana, working parent
"I see exactly which topics need attention before parent-teacher night, without nagging him to study."
- One link covers all your kids
- Weak topics flagged automatically
- Time-on-task at a glance
A rich, safe place for kids to learn
Parents stay in control, content is kid-safe and accurate, tutors are vetted, and privacy is protected — and it's all enforced on our servers.
Block any subject or topic, per child.
Age gate, parental consent, no ads to kids.
Filtered, reviewed, age-appropriate.
Background-checked, parent-present.
Simple pricing
One flat price. Every subject
One transparent monthly price for all 16 subjects, Pre-K to Grade 12 — no per-subject, per-hour fees. Start with a free trial.
Free
Try Studyfin with your child.
$0/forever
No credit card. 3 topics / day.
- All 16 subjects
- 1 student profile
- Adaptive quizzes
- Standard browser voice
⭐ Most popular
Family
One child. Everything unlocked.
$19.99/mo
$14.99/mo if billed yearly. First month free.
- Unlimited lessons
- Inline animated visuals
- Per-question explain & retry
- Premium AI voice (Neural2)
- Parent dashboard
Schools
Volume pricing. Custom rollout.
Let's talk
$49.99/mo self-serve · $6–10/student/month at scale.
- Teacher & co-teacher accounts + bulk enrollment
- Google SSO + admin console
- Live online classes + attendance
- AI exams (MCQ + short-answer) + gradebook
- Class analytics + at-risk flags
- Google Classroom sync (share + grades)
- Curriculum control + parent messaging
- District oversight + dedicated account manager
📲 Get the Studyfin app
Learning on the go — install it on your child's phone or tablet, or just use it right here in your browser.
Also available directly: download the .apk (Android) or add to your Home Screen (iPhone) →
Welcome back
Who's signing in?
Students & parents
Learning center · staff
School · staff
District & tutors
School & organization sign-in is on the web — visit studyfin.ai in your browser to sign in.
FAQ
Questions, answered
What ages is Studyfin for?
Studyfin is built for primary and middle school students — grades Pre-K through 12. Lessons are auto-calibrated to your child's grade and current difficulty.
How does the "adaptive" part actually work?
Each topic has a difficulty band (1–5). Pass a quiz and the band moves up; miss questions and Studyfin re-teaches the concept a new way — an analogy, a visual, or a worked example. After three re-teach attempts, the topic is flagged for parent or teacher review.
Is it safe for kids?
Yes. All AI output is filtered through Google's safety classifiers for age-appropriate content. Studyfin never asks for personal information. Sign-in is Google-only with parent consent expected for younger kids.
How do parents see progress?
Sign in with Google and enter your child's 6-digit Student ID. The dashboard shows every topic they've worked on — current difficulty, last score, and whether it's mastered.
What subjects are covered?
Math, English & Reading, Science, Social Studies, History, Geography, Coding, Art, Music, Logic Puzzles, Health, Study Skills, and world languages (Spanish, French, Mandarin & ASL) — 16 subjects total, with 350+ topics across primary, middle, and early high school.
How much does it cost?
Families start with a free trial, then choose a Family plan (from $19.99/mo). Schools, learning centers and tutors have their own plans. See the Pricing page for full details.