Free trial
A 7-day free trial is offered for both the individual and family plans, and the site states no credit card is necessary. A free adaptive multiplication flashcard set is also available without signup.
Learn moreSynthesis Tutor
A patient, adaptive math tutor for kids aged 5 to 11.
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What is Synthesis Tutor?
Synthesis Tutor is a homework help tool. An adaptive K-5 math tutor for children aged 5 to 11, descended from the SpaceX school. It adjusts to each answer, teaches through hands-on interactive lessons, and reports progress to parents. Runs on iPad and desktop, with family plans for up to seven kids.
Synthesis Tutor is an adaptive math companion for children roughly ages 5 to 11, built by the team behind the experimental school Elon Musk asked cofounder Josh Dahn to start at SpaceX in 2014. The product takes the K-5 math curriculum (counting and cardinality, addition, subtraction, multiplication, division, fractions, algebraic thinking) and wraps it in a one-on-one tutoring experience that reacts to each answer in real time. It is aimed squarely at families: parents who want steady math support without acting as the instructor, and homeschoolers looking for a structured core. The pitch rests on adaptation rather than fixed worksheets. Each problem is evaluated the moment a child responds, and the tutor adjusts difficulty and explanation style to match, surfacing mistakes as information and steering instruction toward gaps in understanding. Lessons are multisensory and hands-on, asking kids to act rather than watch, and the interface is gamified with levels that unlock as concepts are mastered. Progress reports give parents visibility without requiring them to sit through every session, which is why the company describes the tool as hands-off for adults. In practice, a child signs in on an iPad or a desktop browser and works through short interactive lessons at their own pace. The tutor supplies warm, immediate feedback on each step, so a wrong answer becomes a prompt for guided correction instead of a dead end. Families with several children can put up to seven kids under one subscription, and schools or classrooms can contact the company separately for educator arrangements. Among math apps, Synthesis sits closer to a tutoring relationship than a drill library: the marketing contrast is explicit, framing textbook and worksheet derived tools as static against a digitally native, responsive tutor. A free adaptive multiplication flashcard set offers a low stakes way to sample the approach before subscribing.
How do you use Synthesis Tutor?
1Start a free trial without a card
Open the signup flow from the homepage call to action. The company states no credit card is necessary to begin, so you can create the account and hand the device to your child before committing to a plan.
2Set up the student profile
During onboarding you register your child as the learner. Family tiers allow multiple students, so decide early whether you are buying for one child or several.3Run a lesson and watch the adaptation
Have your child work through the first interactive lesson on iPad or desktop. Watch how the tutor responds to a wrong answer, then let it guide the correction instead of stepping in yourself.4Check the progress reports
After a few sessions, review the reporting view for the child's current level and where gaps were flagged. This is the main adult facing surface and the easiest way to judge fit.5Sample the free flashcards first
If you want a feel for the teaching style before signing up, the free adaptive multiplication flashcards are open without an account. Useful for a quick sanity check with a reluctant child.
6Choose a plan or route to educators
Compare the individual and family tiers, monthly, annual and lifetime, and pick based on how many children will use it. Schools and classrooms should contact the education team rather than buy consumer plans.
Pros and cons
Pros
- Adapts difficulty and explanation in real time based on each answerAI
- Covers the full K-5 sequence from counting through fractions and early algebraAI
- Multisensory, gamified lessons designed to hold attention rather than drillAI
- Parent and teacher friendly: progress reports with little supervision requiredAI
- Family plan covers up to seven kids, and a free trial needs no credit cardAI
Cons
- Scope stops at early math: no middle school, algebra or beyondAI
- No public API or third party integrations are described anywhere on the siteAI
- Pricing is presented inconsistently, with sale figures and list figures overlappingAI
- Curriculum depth and teaching quality can only be judged from marketing, since no full scope document is publishedAI
- Little detail on how far progress reports go or how they are exportedAI
How much does Synthesis Tutor cost?
Pricing
Individual: $45/month, $29/month billed annually at $348/year, or $999 lifetime. Family (up to seven kids): $29/month, $119/year equal to $9.92/month, or $1,499 lifetime. The homepage also shows discounted and promotional figures, including a 20% holiday sale, so confirm the price at checkout.
Learn moreSupport
The site lists a contact email (questions@synthesis.com) and social channels, plus a common questions section covering age range, tablets, neurodiversity and languages. It also links a COPPA page and a separate contact route for schools and classrooms.
Learn moreFeatures
Covers the standard K-5 curriculum: counting and cardinality, addition, subtraction, multiplication, division, fractions and algebraic thinking. Each answer is evaluated immediately and instruction adapts. Lessons are multisensory, gamified and level based, with progress reports for adults and support for emerging readers and neurodiverse students.
Frequently asked questions about Synthesis Tutor
How much does Synthesis Tutor cost?
Individual: $45/month, $29/month billed annually at $348/year, or $999 lifetime. Family (up to seven kids): $29/month, $119/year equal to $9.92/month, or $1,499 lifetime. The homepage also shows discounted and promotional figures, including a 20% holiday sale, so confirm the price at checkout.Does Synthesis Tutor offer a free trial?
A 7-day free trial is offered for both the individual and family plans, and the site states no credit card is necessary. A free adaptive multiplication flashcard set is also available without signup.How do you use Synthesis Tutor?
The walkthrough on this page covers 6 steps: 1. Start a free trial without a card 2. Set up the student profile 3. Run a lesson and watch the adaptation 4. Check the progress reports 5. Sample the free flashcards first 6. Choose a plan or route to educators.What platforms does Synthesis Tutor support?
Synthesis Tutor is available on Web App and iOS.What are the limitations of Synthesis Tutor?
Scope stops at early math: no middle school, algebra or beyond. No public API or third party integrations are described anywhere on the site. Pricing is presented inconsistently, with sale figures and list figures overlapping.
Status
StatusActive
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Added10/21/2026
Platforms
Web AppiOS
Pricing
Free TrialSubscriptionPaid
