Synthesis Tutor
https://www.synthesis.com/tutor
Embeds micro-assessments into every lesson to track understanding in real time, adjusting difficulty and teaching approach within session. Combines AI personalization with human-curated content. No publicly disclosed mechanism for a durable cross-session learner profile beyond progress tracking within its math curriculum scope (ages 5–11).
Active · Verified 2026-10-22 · fresh as of 2026-10-22 · 30 cited facts, 2 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- Real-time micro-assessment adaptation vendor fix
- Tier
- T3
- Created
- 2020 (founded 2020 by Josh Dahn and Chrisman Frank; Synthesis Tutor AI product added later) third-party fix
- Latest release
- not applicable — not OSS fix
- License
- not applicable — not OSS fix
- GitHub
- not applicable — no GitHub repo fix
- Pricing
- 7-day free trial; family ~$29/mo or $119/yr; individual $45/mo or ~$300/yr; lifetime $999–$1,499 (page figures inconsistent) vendor fix
- Funding
- $12M Seed · 2024-01 vendor fix
- Freshness
- 2026-10-22 fix
- Layer
- agent-infra repo fix
- Licensing
- commercial vendor fix
Memory taxonomy
- storage
- kv
- retrieval
- injection
- persistence
- session
- update
- overwrite
- unit
- profile
- governance
- inspectable
- conflict
- n/a
When to use
Optimised for: learner profile + spaced repetition + assessment-driven adaptation
Anti-fit: not for non-educational use cases
Pros & cons
Pros
Combines AI-driven real-time adaptation with neuroscientist- and educator-designed content; praised for age-appropriate pacing.
Cons
Limited to math, ages 5–11; memory is effectively session-scoped adaptive state, not a long-term learner model.
Claims & capabilities
On pace for $10M+ revenue 2025. Subscribed students up 4.5x YoY.
Technical surface
- API surface
- not applicable — research paper
- Backend storage
- not applicable — research paper
- Deployment
- iPad + Android tablet + Web/desktop (incl. Chromebook)
- Embedding model
- not applicable — research paper
- Multi-tenancy
- not applicable — research paper
- MCP
- not applicable — research paper, no deployed product
- A2A
- not applicable — research paper, no deployed product
- OpenTelemetry
- not applicable — research paper, no deployed product
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Similar systems
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Sources (29 cited facts, 2 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Real-time micro-assessment adaptation vendor
- What it does & what's distinct Embeds micro-assessments into every lesson to track understanding in real time, adjustin… vendor
- Claims / benefits On pace for $10M+ revenue 2025. Subscribed students up 4.5x YoY. vendor
- Modalities text vendor
- Created 2020 (founded 2020 by Josh Dahn and Chrisman Frank; Synthesis Tutor AI product added lat… third-party
- Funding $12M Seed · 2024-01 vendor
- Customers / scale 11-50 ppl 21500+ students, SpaceX-origin program vendor
- Pricing 7-day free trial; family ~$29/mo or $119/yr; individual $45/mo or ~$300/yr; lifetime $99… vendor
- Compliance COPPA-compliant third-party
- Data handling Child privacy-first; COPPA-governed data handling vendor
- Deployment iPad + Android tablet + Web/desktop (incl. Chromebook) vendor
- HQ US vendor
- Founders / pedigree Synthesis (Josh Dahn, co-founder; ex-SpaceX Ad Astra teacher; Josh Hug co-founder) vendor
- Memory volume / scale internal — undisclosed vendor
- Schema evolution free-form / no schema vendor
- Namespace primitives per-user vendor
- Forgetting policy TTL-based vendor
- Validated verticals K-12 + higher-ed + adult learners (language, study tools, tutoring) vendor
- Time to running <10min (hosted SaaS sign-up) vendor
- Anti-fit not for non-educational use cases vendor
- Optimised for learner profile + spaced repetition + assessment-driven adaptation vendor
- Adjacent infrastructure self-contained app + LMS integration where applicable vendor
- Pros Combines AI-driven real-time adaptation with neuroscientist- and educator-designed conte… vendor
- Cons Limited to math, ages 5–11; memory is effectively session-scoped adaptive state, not a l… vendor
- Project & sources synthesis.com/tutor Unite.AI review vendor
- architecture-deployment-locus cloud vendor
- licensing-bucket commercial vendor
- positioning-platform-vs-product product vendor
- taxonomy-three-layer-rollup agent-infra repo
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-22
- Pricing “$20–$45/month; annual from $99/year (up to 7 kids)” → “7-day free trial; family ~$29/mo or $119/yr; individual $45/mo or ~$300/yr; lifetime $999–$1,499 (page figures inconsistent)” source
- Deployment “iOS (iPad) + Web” → “iPad + Android tablet + Web/desktop (incl. Chromebook)” source