Synthesis
Visit Synthesis →About Synthesis
Synthesis is an AI-powered math and problem-solving platform that originated in 2014 when founder Josh Dahn was asked by Elon Musk to launch an experimental school for SpaceX employees' children. It was initially available only to SpaceX families before expanding into a public product suite.
Today Synthesis ships two separate products: Synthesis Tutor, an adaptive K-5 math program for ages 5-11, and Synthesis Teams, a game-based program for ages 8-14 focused on problem-solving, leadership, and critical thinking. Pricing for Synthesis Teams was not available on the vendor's pricing page at the time of review.
Synthesis Tutor presents math as puzzles and strategic challenges rather than drill-and-practice, with an AI that tracks each child's understanding and adjusts difficulty and topic focus. It also includes progress tracking for parents. The company additionally offers free adaptive multiplication flashcards outside of any paid subscription.
Synthesis Tutor is sold across two plan families — Individual (covers 1 child) and Family (covers up to 7 children per the vendor's homepage, though its pricing page separately lists Family Lifetime as covering up to 10) — and three billing modes: monthly, annual, and one-time lifetime purchase. On the most recent check, sale pricing was Individual Monthly $35/month, Individual Annual $300/year, Individual Lifetime $999 one-time, Family Monthly $29/month, Family Annual $119/year, and Family Lifetime $1,499 one-time. The vendor's homepage and pricing page disagree on the non-sale 'regular' rates, so those figures are omitted here. A 7-day free trial is available on monthly and annual subscriptions but not on Lifetime purchases; there is no ongoing free plan.
Synthesis Tutor covers only K-5 math (ages 5-11); broader problem-solving skills for ages 8-14 require the separate Synthesis Teams product. The game-based approach may not satisfy parents seeking traditional curriculum alignment or standardized test preparation, and children who prefer direct instruction may find the exploratory format frustrating. The vendor's own pricing pages also contain internal inconsistencies on regular rates and child counts, making exact cost comparisons difficult.
Best suited for parents of elementary-age children (5-11) who want an engaging, adaptive supplement to school math, particularly larger families that benefit from the Family plan's multi-child coverage.
- Originally developed for SpaceX employees' children before opening to the public
- Family plans cover up to 7 children, offering value for multiple kids
- Game-based approach makes math engaging for children who find worksheets boring
- Adaptive AI adjusts difficulty to each child's pace and understanding
- Multiple billing options available: monthly, annual, or one-time lifetime purchase
- No free plan; only a 7-day free trial on subscription tiers, not available on Lifetime purchases
- Vendor's own pages disagree on regular (non-sale) prices and on the child count for Family Lifetime, making cost comparison difficult
- Synthesis Tutor covers only K-5 math (ages 5-11); the ages 8-14 problem-solving product, Synthesis Teams, is priced separately
- Exploratory, game-based format may frustrate children who prefer direct instruction
- Does not align to traditional curriculum or standardized test prep
Choose Synthesis if…
- ✅ You want your child to develop problem-solving and reasoning skills through game-based math challenges
- ✅ You're a parent who wants an engaging alternative to traditional math drills for elementary school math
- ✅ You want a program originally developed for SpaceX employees' children, now open to the public
- ✅ You want adaptive challenges that grow with your child's ability level automatically
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