Synthesize.io (Synthesis)

Adapts to Your Child's Ability

Synthesis Tutor immediately evaluates and adapts to your child's skill level, providing tailored guidance for every problem in every lesson. It surfaces mistakes and fills in knowledge gaps with customized instruction, ensuring your child feels supported at every step.

Your child receives 1-on-1 attention that meets them where they are, building confidence and deep understanding.

Immersive Math Adventures

Every aspect of Synthesis is designed to captivate kids' interests and make math feel like an adventure. The gamified experience and hands-on, multisensory approach turn math into play, so kids actively look forward to learning.

Children stay motivated and engaged, often spending hours on the app and asking to do more math.

Builds Foundational Mastery

Synthesis Tutor covers the standard K-5 math curriculum—counting, addition, subtraction, multiplication, division, fractions, and algebraic thinking—and goes beyond rote memorization. It uses a multisensory experience to lock in fundamentals and develop deep, lasting understanding.

Kids not only learn math concepts but also apply strategies to other topics, showing true mastery.

Math That Clicks

Kids learn best when they start by using their body. The Tutor engages all the senses and invites students to take action, helping them build deep understanding and confidence through interactive, manipulative-based lessons.

Students grasp abstract concepts more easily and retain knowledge longer.

Progress Reports & Hands-Off for Parents

Synthesis Tutor provides progress reports and is designed to be hands-off for parents and teachers. The system evaluates student progress in real time with micro-assessments in every lesson, so you can trust your child is learning without constant supervision.

Parents can relax knowing their child is getting personalized, effective instruction.

Expert-Crafted AI Tutoring

Synthesis Tutor leverages AI where appropriate, but relies on a team of expert educators and neuroscientists to handle pedagogy and interactive experiences. Every lesson is carefully reviewed to ensure the highest quality—it's not just an LLM.

Your child gets a reliable, high-quality tutoring experience that goes beyond generic AI.

• Personalized, Adaptive LearningSynthesis Tutor adapts to your child's ability with immediate evaluation and tailored instruction, targeting gaps in knowledge to build strong math foundations.
• Engaging and MultisensoryThe Tutor engages all senses with hands-on, playful lessons, making math an experience kids actively look forward to, as highlighted by parent testimonials.
• Comprehensive K-5 CoverageCovers the standard K-5 math curriculum including counting, addition, subtraction, multiplication, division, fractions, and algebraic thinking, going beyond typical tools.
• Trusted by Many FamiliesJoin over 35,000 forward-thinking families who report improved confidence and motivation in math, with immediate results for less than $1/day.

• Pricing DetailsPricing plans include Family Monthly at $70/month, Family Annual at $33.33/month ($400/year), and Family Lifetime at $1,499. There is also a plan for up to 7 kids at $29/month or $119/year, and a 7-day free trial is offered. Holiday sale offers 20% off.
• Age Range and DeviceDesigned for ages 5-11, playable on tablet or desktop. No credit card is required for the free trial, and a free times tables flashcard game is available without signup.
• Parental InvolvementThe service is hands-off for parents and teachers, providing progress reports, but it is not a replacement for classroom instruction or certified curriculum.
• Claims of EffectivenessWhile testimonials praise the tutor, individual results may vary. The site claims immediate results and deep understanding, but these are not independently verified.

Personalized Math Tutoring for Ages 5-11

Synthesis Tutor adapts to each child's ability, providing immediate evaluation and tailored guidance for every problem. It covers the standard K-5 math curriculum including counting, addition, subtraction, multiplication, division, fractions, and algebraic thinking, making it ideal for young learners who need a warm, patient, and encouraging math companion.

Building Deep Foundational Understanding

The Tutor doesn't just teach — it builds deep understanding through a multisensory, hands-on approach that engages all senses. It surfaces mistakes and fills in gaps with customized instruction, helping children lock in fundamentals and go beyond rote memorization to truly excel in math.

Supporting Neurodiverse and Emerging Readers

Synthesis Tutor is designed to support neurodiverse students with a multi-sensory approach and manipulatives. For emerging readers, the Tutor can read everything aloud, with adjustable voice speed and automatic read-aloud for users under 7, ensuring every child can learn comfortably.

Homeschooling and Parent-Friendly Progress Tracking

Parents and teachers appreciate the hands-off nature of Synthesis Tutor, which provides progress reports and keeps kids actively engaged with fun, gamified lessons. Homeschooling parents report seeing concepts 'click' and children applying strategies learned in Synthesis to other topics, making it a valuable addition to any home curriculum.

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