Synthesis Tutor

synthesis.com

Free plan
Web
iPhone and iPad
Android

What Synthesis Tutor is

Synthesis Tutor is a personalized math learning product for children ages 5–11. It covers standard K–5 topics, including counting, arithmetic, fractions and algebraic thinking. Lessons adapt to a child's knowledge gaps and use real-time checks to assess understanding before advancing. For children under 7, text and answer choices are read aloud automatically, and voice speed can be adjusted. The Tutor is available in English and Spanish, with more languages in progress, on the web and iOS. The Individual Monthly plan is $35 a month for one child; Individual Annual is $25 a year, billed at $300/year annually, for one child. Family Monthly is $29 a month for up to seven children, while Family Annual is $119 a year for up to seven children. Lifetime plans are also listed: Individual Lifetime at $999 a month for one child and Family Lifetime at $1,499 a month for up to ten students.

Who it suits

Synthesis Tutor is designed for children ages 5–11 learning K–5 math, including families seeking progress checks and adaptive guidance. Classrooms, schools, homeschooling pods and districts can also express interest in using it.

Good to know, and what to watch

Covers standard K–5 math topics.
Adapts guidance to knowledge gaps.
Checks understanding during lessons.
Reads text aloud for users under 7.
Available in English and Spanish.

Covers a single subject: math.
Web and iOS are the listed platforms.
Other languages are still in progress.

Plans

Every plan and price

Individual Monthly

$45/mo

Individual Annual

$348/yr

Family Monthly

$70/mo

Family Annual

$400/yr

Free plan · 7-day trial

Getting started

Open the Synthesis Tutor website
Choose web access or the iOS platform
Select an individual or family option
Use the 7-day trial
Create an account and begin lessons
Schools and districts can submit the interest form

Limits to check

The listed Individual options cover one child, while Family Monthly and Family Annual cover up to seven children; Family Lifetime lists up to ten students. The free trial lasts seven days, and no free plan is listed.

The verdict

Synthesis Tutor focuses on elementary math with adaptive lessons, progress checks and read-aloud support for younger users. Families should compare the listed individual and family options against the number of children who will use it.

Questions people ask

Is there a free plan?

No. Synthesis lists a 7-day trial and paid plans, but no free plan.

What does it cost?

Individual Monthly is $35 a month, and Individual Annual is $25 a year billed at $300 annually. Family Monthly is $29 a month, Family Annual is $119 a year, Individual Lifetime is $999 a month, and Family Lifetime is $1,499 a month.

Which platforms are supported?

The Tutor is available on the web and iOS.

Which languages are available?

It is available in English and Spanish, with other languages in progress.

Can schools use it?

Synthesis offers the Tutor to classrooms, schools, homeschooling pods, and school districts through an interest form.

What age group is covered?

The product is designed for children ages 5–11 and covers standard K–5 mathematics.

What the maker publishes

Accessibility: For users under 7, text and answer choices are read aloud automatically, and users can adjust the Tutor's voice speed. source
Adaptive guidance: Lessons provide immediate, tailored guidance on each problem and adjust to the learner in real time. source
Adaptive teaching: The Tutor provides tailored guidance and targets gaps in a child's knowledge. source
AI use: Synthesis says it uses AI where appropriate and that educators and neuroscientists guide much of the pedagogy and interactive experience. source
API and SDKs: The published terms contain no public API or SDK offering and describe the software as proprietary. source
Apple app capability: The iPad listing describes adaptive step-by-step lessons, manipulatives, progress tracking, gameplay and adaptive flashcards. source
Apple complaint: missing features: One reviewer said a redesign removed many flashcards and other activities and that the advertised trial did not expose the former feature set. source
Company founding: Synthesis says Josh Dahn and Chrisman Frank cofounded the company in 2020. source
Company headquarters: The maker states that it is headquartered in Scotts Valley, California. source
Company legal name: The maker identifies itself as Synthesis School, Inc. source
Company size: LinkedIn lists Synthesis as a privately held education company with 11–50 employees. source
Compliance: The privacy policy states compliance with COPPA and applicable FERPA provisions. source
Curriculum: It covers standard K–5 math, including counting, arithmetic, fractions, and algebraic thinking. source
Data retention: Children's data is retained for the service duration plus 30 days unless a parent requests deletion sooner. source
Devices: It runs in Chrome, Safari or Edge on computers and has iPad and Android tablet applications. source
Free plan: Yes source
Funding: Crunchbase lists three funding rounds and investors including O'Shaughnessy Ventures, while the dollar amounts are obscured. source
Languages: The Tutor is available in English and Spanish, with other languages in progress. source
Languages: Lessons are offered in English and Spanish, with other languages being considered. source
Learning design: The product describes its lessons as hands-on, multisensory, and gamified. source
Limit: content ceiling: A Reddit parent worried that a child could exhaust the available multiplication, division, fractions and number-sense lessons and questioned whether new material arrived fast enough. source
Limit: grade coverage: An independent review characterizes the product as supplemental practice that stops around grade 5 rather than a complete curriculum. source
Limit: not open-ended tutoring: The same Reddit discussion said the product was not a true tutor that could answer arbitrary questions like a person. source
Limit: software bug: A Trustpilot reviewer reported being unable to pass the division assessment because of a suspected software bug. source

Checked against the maker's pages on 15 Oct 2026.