Synthesis vs Khanmigo
A detailed comparison to help you choose between Synthesis and Khanmigo.
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Verdict: Khanmigo wins
Khanmigo scores 4.2/5, edging out Synthesis at 3.6/5. US K-12 students, families and teachers who want curriculum-aware tutoring that teaches rather than answers.
Synthesis AI learning platform for ambitious kids | Khanmigo AI tutor by Khan Academy | |
|---|---|---|
| Rating | 3.6 (1 review) | 4.2 (1 review) |
| Pricing Model | paid | paid |
| Starting Price | From $35/mo | From $4/mo |
| Best For | Families with two or more children in the 5-11 range who want a voice-led, concept-first math tutor and can use the family plan rather than individual pricing. | US K-12 students, families and teachers who want curriculum-aware tutoring that teaches rather than answers. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | — | — |
| Visit Synthesis → | Visit Khanmigo → |
Synthesis
Pros
- + The Socratic voice loop is the real thing: in my sessions the tutor probed specific misconceptions verbally before letting the child advance
- + Family pricing is exceptional value — the advertised $119/year for up to 7 kids undercuts nearly every paid math programme on the market
- + Read-aloud of all text and answer choices for under-7s, with adjustable voice speed, makes it usable for pre-fluent readers
- + Adaptive sequencing targets shaky sub-skills with fresh problem sets rather than generic repetition
- + 7-day free trial with no credit card lowers the barrier to actually testing it with your own child
Cons
- - Explanations are scripted: a child stuck on one method gets the same method re-arranged, not a different teaching strategy
- - The headline efficacy claims rest on a DARPA study of 36 Navy sailors — adults, different subject — with no independent evaluation on children
- - Individual pricing ($45/month listed) is steep for single-child households
- - Maths only; no reading, writing or science coverage
- - The pricing page displays conflicting plan blocks ($45/$348 individual alongside $29/$119 family promos), so the actual checkout price is hard to pin down
Khanmigo
Pros
- + Holds the no-answers line: in my session it declined to give answers and stayed Socratic across repeated prompts
- + Free for teachers at time of writing, with lesson planning, rubrics and student-work summaries included
- + Learner plan is $4/month or $44/year at time of writing, with a family variant adding child accounts and moderation alerts
- + Writing coach debates and probes evidence rather than rewriting student work
- + Voice input and read-aloud make it usable for younger students and accessibility needs
Cons
- - Self-serve access requires a US billing address; under-18s must join through a parent account
- - Curriculum alignment is US-centric (Common Core, AP, SAT); other national syllabi get a general tutor
- - Deliberately slow versus answer engines; students seeking quick homework answers will quit
- - Advanced undergraduate-level depth was uneven in my testing
- - No published learner free tier for the tutor itself; district pricing is quote-only
Frequently Asked Questions
Which is better, Synthesis or Khanmigo?▼
Khanmigo scores higher at 4.2/5 vs 3.6/5 for Synthesis, making it the better-rated option in our comparison.
What is the difference between Synthesis and Khanmigo?▼
Synthesis: Synthesis Tutor is an adaptive maths tutor for primary-age children, available on iPad and desktop, that adjusts to each child's pace. Khanmigo: Khanmigo is Khan Academy's AI tutor and teaching assistant. It guides students to answers instead of giving them away, and helps teachers plan lessons, create quizzes and track progress.
Is Synthesis or Khanmigo more affordable?▼
Synthesis starts at €35/mo, Khanmigo starts at €4/mo. Check the comparison table above for current pricing.
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