For parents of K–10 students
Stop guessing what your child needs in math.
Start a 7-day free trial of the Confidence Accelerator System.
Whether they're slipping behind, coasting through, or ready to accelerate — Thinkster pairs your child with a dedicated 1:1 tutor, our PrediQt-AI Engine, and a Mastery Matrix that shows what they've mastered and what comes next. Most parents see measurable progress in the first 6 months — or your money back.
7-day free trial · Money-back performance guarantee
Grade 4 · Math
Your child's roadmap
78%
mastered
Next session focus
Multi-digit multiplication carry patterns · 12-min targeted set chosen by the PrediQt-AI Engine.
If this feels familiar
You're not missing effort. You're missing a system that answers what comes next.
Most parents see one or more of these in their kitchen every week. They aren't signs that something is wrong with your child — they are signs that the method around them isn't matching how they actually learn.
Homework wars that nobody wins
Your child avoids math homework — not because they can't do it, but because they hate it. You end up nagging, hovering, or doing the problems with them. The work gets turned in, but nothing is actually learned, and the same gaps come back on the next test.
"I'm just not a math person."
Once a child says that out loud, it sticks. Every confusing worksheet after that confirms the story. The longer they believe it, the harder it gets to unwind — even when the underlying gap is small and very fixable.
Good grades, no real challenge
Some kids breeze through every assignment, get straight As, and quietly slow down. The grade looks great. The growth has stalled. Without harder problems and a tutor who notices, the gap to their actual potential widens year over year.
You've tried tutors — and you still can't tell if it's working
Weekly hourly tutors. Practice apps. Workbooks. Each one promised progress. Without a clear map of what your child has mastered and what's next, every session feels like a fresh experiment. You're paying, you're hopeful, and you're guessing.
7-day free trial · Money-back performance guarantee
The Confidence Accelerator System
Eight pieces that work together — not eight features bolted on a worksheet app.
Most tutoring stacks one tool on top of another and hopes the gaps sort themselves out. Thinkster designed the eight components below to work as one system, with the PrediQt-AI Engine and your child's dedicated tutor sharing the same Mastery Matrix data every day.
Component 01
PrediQt-AI Engine
The patented engine that watches every problem your child solves — not just the answer, but the steps, the timing, and the confusion. It then chooses the next worksheet, hint, or stretch problem so practice is always meeting your child exactly where they are.
Inside the parent app: Two U.S. patents on the explainable-AI core. Trained on more than a decade of K–10 problem-solving data.
Component 02
Dedicated 1:1 Tutor
Every Thinkster student is paired with a dedicated math tutor — a real human who knows your child's name, learning style, and the exact gaps the PrediQt-AI Engine has flagged. They run weekly live sessions and review your child's daily work in between.
Inside the parent app: Tutors are vetted math educators, not generalist gig workers. Same tutor week after week so trust compounds.
Component 03
World-Class Curriculum
Aligned to your state's standards and built for math thinking — not just memorization. Thousands of problems graded by difficulty, concept, and the cognitive skill they stretch (procedural fluency, conceptual depth, application, reasoning).
Inside the parent app: Covers Kindergarten through Algebra II / Pre-Calculus. Updated annually as state standards change.
Component 04
Mastery Matrix
A visual map of every concept your child should know for their grade — color-coded by mastery. You and your tutor see exactly which cells are green (mastered), yellow (building), and red (needs work). No more guessing whether tutoring is working.
Inside the parent app: Updated in real time after every worksheet. The single artifact most parents say convinced them Thinkster was different.
Component 05
24/7 AI Coach
When your child gets stuck at 9pm and you're not sure how to help, the AI Coach steps in with a Socratic hint — not the answer. It asks the same kind of nudging questions a great tutor would, so the next problem clicks instead of getting skipped.
Inside the parent app: Built on the same explainable-AI core. Tracks every hint requested so the human tutor can review patterns next session.
Component 06
Video Tutorials
A library of short, concept-focused tutorial videos — assigned by the PrediQt-AI Engine the moment your child shows a gap. Pause, rewind, rewatch. Available inside the parent app alongside every assigned worksheet.
Inside the parent app: Recorded by Thinkster's own math educators. New videos added as the curriculum updates.
Component 07
Performance Guarantee
Follow the plan for six months. If your child hasn't shown measurable improvement on their Mastery Matrix and assessment scores, we'll refund the program. We can make this promise because the system works — but we won't ask you to take that on faith.
Inside the parent app: Plain-English terms: complete the assigned worksheets, attend tutor sessions, take the bookend assessments.
Component 08
Monthly Rewards
Effort is harder to see than results — especially in elementary and middle school. Thinkster's monthly reward program celebrates streaks, mastered concepts, and tutor-flagged growth moments so your child keeps showing up even when the math is hard.
Inside the parent app: Built in to the parent app. Tutors nominate students; rewards arrive without parent admin.
7-day free trial · Money-back performance guarantee
Thinkster vs. the center model
Why families switch to Thinkster from drop-off tutoring centers.
Parents who try Kumon, Mathnasium, Sylvan, or other center franchises usually leave for the same reasons: the practice isn't personalized to their child, the tutor changes week to week, and it's hard to see what improved. Here's how the two approaches actually differ in day-to-day use.
Thinkster
Online · dedicated tutor · AI-personalized
Drop-off tutoring centers
Kumon, Mathnasium, Sylvan and similar
How practice is chosen
Thinkster
PrediQt-AI Engine selects every worksheet based on your child's mastery data — the right next step, not just the next page.
Center model
Pre-printed packets, same sequence for every child. Pace is the lever, not personalization.
Tutor relationship
Thinkster
Dedicated 1:1 tutor, same person week after week, reviewing your child's work between sessions.
Center model
Drop-off model. Whoever is on the floor that day works with whichever kids are in the room.
Progress visibility
Thinkster
Mastery Matrix shows every concept, color-coded by mastery, updated after every worksheet.
Center model
Monthly paper reports or verbal updates. Hard to point at what specifically improved.
Where it happens
Thinkster
Online — daily practice from home, weekly live tutoring over video. Travels with you on vacations.
Center model
In-person at a physical center. Two trips per week, often through rush-hour traffic.
Stretch for advanced learners
Thinkster
Above-grade-level problems unlocked automatically once the Mastery Matrix is green at grade level.
Center model
Most centers cap at grade level until your child finishes the prescribed booklet.
If it isn't working
Thinkster
6-month money-back Performance Guarantee tied to measurable Mastery Matrix improvement.
Center model
Monthly tuition, no outcome-tied refund. You eat the cost of the experiment.
7-day free trial · Money-back performance guarantee
The Performance Guarantee
Measurable improvement in 6 months — or your money back.
Follow the program. Take the bookend assessments. Show up to the weekly tutor sessions. If your child has not made measurable progress on their Mastery Matrix and assessment scores at the end of six months, we refund the program.
It's a guarantee we can make because the system works for the overwhelming majority of students who actually use it — and we'd rather refund the small share for whom it doesn't than hold them to a contract that isn't fitting.
7-day free trial · Money-back performance guarantee
Real measurable improvements
Before → After, in their parents' own words.
Each story below comes from a real Thinkster family with a real named student outcome on a real standardized assessment (NAPLAN, MAP, STAR, Connecticut Mastery Test, Texas STAAR). Names and attributions are exactly as the families shared them.
From Connecticut Mastery Test Stage 2 (485) → Stage 4 (547) in under a year
“Thinkster Math did in 1 year what Kumon could not do in 3 years.”
— Tanu S. — Parent, Connecticut
Daughter Suhani started the Connecticut Mastery Test at Stage 2 (score 485). Less than a year of Thinkster later her math score jumped to 547 (Stage 4) — a measurable, school-recorded improvement.
From 'danger zone' to 80% above state peers in math growth
“My daughter went from bombing math and being in the danger zone to showing growth that was 80% above her state peers after using Thinkster.”
— Lisa Germann — Parent, Colorado
Initial RIT score of 210 on the MAP math section. After a year of weekly 1:1 tutor sessions and daily Thinkster practice, her RIT score climbed 10 points and her concept foundations were rebuilt.
Second-grader performing at 5th-grade level on the STAR Math Assessment
“It's amazing what a year of Thinkster can do! Her teacher said it's the first time she'd seen a student score higher than a 5th grader.”
— Parent of Alyssa — Grade 2
Alyssa, a 2nd grader, tested at the 5th-grade level on the STAR Math Assessment exactly one year after starting with her dedicated Thinkster tutor.
Highest band on the Australian NAPLAN national math test
“Before Thinkster, Kiara was falling behind in math. These days she tackles complex word problems and has built strong calculation skills.”
— Clem — Father of Kiara, Australia
Kiara and her sister moved from a drill-based center model to Thinkster. With weekly live tutoring and the PrediQt-AI Engine guiding practice, Kiara hit the highest band on the Australian NAPLAN.
86% on Texas state-level math, one of the highest in his campus
“Thanks to his tutor and Thinkster, Soham has scored 86% in his state-level test — one of the highest in his campus.”
— Neeti S. — Mom of Soham, Texas
Soham performed at the 'Master's Grade Level' on the Texas standardized math test after working with his Thinkster tutor.
97th–99th percentile on the North Carolina MAP test inside one year
“Thinkster helped Suprav build confidence by identifying his strong and weak areas, and working on them gradually.”
— Mom of Suprav — North Carolina
Suprav scored in the 97th–99th percentile on the NC MAP math test within a year of starting with his dedicated Thinkster tutor.
Outcomes shown reflect individual student results from the standardized assessments above and are not a promise of future results. Improvement varies based on grade level, starting point, program adherence, and parent engagement.
A plan for every cadence
Real human tutoring + the PrediQt-AI Engine — from $22.50 / session.
Inside the full Confidence Accelerator System — dedicated tutor, PrediQt-AI Engine, Mastery Matrix, 24/7 AI Coach, video library, monthly rewards, and the 6-month Performance Guarantee.
Starting at
$22.50/ session
Inside the full Confidence Accelerator System. Final pricing depends on how many weekly tutor sessions your child needs.
- Plans for every cadence — 2, 4, or 8 weekly tutor sessions per month
- 7-day free trial first — full PDF skill assessment included
- Cancel anytime during the trial, no questions asked
- Performance Guarantee on the full program: measurable improvement in 6 months or your money back
What's included in the trial
Start the 7-day free trial. See the system before you pay.
- Full PDF math skills assessment for your child
- 1:1 introduction session with a matched tutor
- Your child's first Mastery Matrix populated
- Personalized program plan inside the parent app
- Cancel anytime in the 7 days, no questions asked
7-day free trial · Money-back performance guarantee
Questions parents ask
Straight answers, no fine print.
Kindergarten through 10th grade math — covering counting and place value all the way through Algebra II and Pre-Calculus. The PrediQt-AI Engine maps each child against their grade-level state standards and stretches above when they're ready.
Centers run a pre-printed worksheet sequence and rotate kids across whichever staff is on the floor. Thinkster pairs your child with one dedicated tutor, uses the PrediQt-AI Engine to choose every worksheet from their actual mastery data, and shows you progress on the Mastery Matrix in real time. It happens online from home — no two car trips per week through traffic.
Start the trial inside the registration widget on this page. Your child takes a baseline skills assessment, you receive a detailed PDF report, and you get matched with a tutor for a free 1:1 session. Cancel inside the parent app any time during the 7 days at no cost.
Follow the program for six months — assigned worksheets, weekly tutor sessions, bookend assessments. If your child has not shown measurable improvement on their Mastery Matrix and assessment scores at the end of those six months, we refund the program. Plain English, no test-prep promises.
Yes — Thinkster doesn't replace classroom instruction, it makes the classroom click. Many tutors coordinate with what's happening in your child's school week so practice and tutoring reinforce, not conflict with, current units.
Pricing starts from $22.50 per session inside the full Confidence Accelerator System. Plans vary by how many weekly tutor sessions your child needs (2, 4, or 8 per month). Exact pricing for your child's plan appears at the end of the trial signup, once we've matched them to a tutor.
All practice data is private to your family and your child's tutor. Thinkster uses the patented PrediQt-AI Engine on aggregated, de-identified problem-solving signals — never personal information — to improve the curriculum.
7-day free trial · Money-back performance guarantee
Start the free trial
Get your child's Mastery Matrix in the next 7 days.
Drop your email below. Your child takes a free baseline math assessment, you get a detailed PDF report, and we match you with a dedicated tutor for a free 1:1 introduction session. No card up front to start.
- 7-day free trial — full PDF math skills assessment included
- Matched 1:1 with a dedicated tutor in your child's grade range
- First Mastery Matrix populated before the trial ends
- Cancel inside the parent app any time during the trial
Already a Thinkster parent? Sign in at parents.hellothinkster.com.
Trusted by parents worldwide
Built over a decade. Trusted in 60+ countries.
150,000+
Happy families since 2010
4.6 / 5
Parent rating across reviews
60+
Countries served
2
U.S. patents on the PrediQt-AI Engine