kitio.aiSynthesis Tutor vs SAT Sphere
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. SAT Sphere has the lower starting price: about $10 a month, against $45 for Synthesis Tutor.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Adaptive maths lessons
- Voice tutor
- Interactive manipulatives
- Parent progress reports
- Family plans
- Digital SAT course modules
- 7,000+ review questions
- Personalized study plans
- SAT vocabulary dictionary
- Custom practice exams
- AI study companion
| Feature | Synthesis Tutor | SAT Sphere |
|---|---|---|
| Best for | AI maths tutor for children aged 5 to 11 | Digital SAT prep with lessons, practice questions and an AI tutor |
| Category | Education | Education |
| Pricing model | Free trial | Freemium |
| Starting price | $45/mo | $10/mo |
| Free plan | No, 7-day trial | Yes |
| Made by | Synthesis | SAT Sphere |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
SAT Sphere has the lower starting price: about $10 a month, against $45 for Synthesis Tutor.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Individual
$45/mo
- 1 child
- Adaptive AI math tutor
- Billed monthly
Family
$70/mo
- Multiple children
- Adaptive AI math tutor
- Billed monthly
Individual Lifetime
$999 one-time
- 1 child
- One-time payment
Family Lifetime
$1499 one-time
- Multiple children
- One-time payment
3 plans
Free
Free
- 1 foundational course module
- Introductory SAT materials
Premium
$10/mo
- All SAT course modules
- 7,000+ review questions
- Personalized study plans
- SAT word dictionary
Premium Plus
$15/mo
- Everything in Premium
- Flashcards
- Custom practice exams
- 24/7 AI study companion
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Synthesis Tutor
- Engaging for young children
- Adapts to each child
- Family plan covers several kids
- Expensive monthly
- Covers elementary maths only
SAT Sphere
- Low monthly prices
- Free plan to try the course
- University hub for admissions research
- Free plan includes only one module
- AI companion requires Premium Plus
- Focused on the SAT only
Which one should you choose?
Choose Synthesis Tutor if you want:
- Engaging for young children
- Adapts to each child
- Family plan covers several kids
Watch out: expensive monthly.
Choose SAT Sphere if you want:
- Low monthly prices
- Free plan to try the course
- University hub for admissions research
Watch out: free plan includes only one module.
Synthesis Tutor vs SAT Sphere FAQ
What is the difference between Synthesis Tutor and SAT Sphere?
Synthesis Tutor: AI maths tutor for children aged 5 to 11. SAT Sphere: Digital SAT prep with lessons, practice questions and an AI tutor. Both are education tools.
Is Synthesis Tutor or SAT Sphere cheaper?
SAT Sphere has the lower starting price: about $10 a month, against $45 for Synthesis Tutor.
Do Synthesis Tutor and SAT Sphere have free plans?
Synthesis Tutor: No, 7-day trial. SAT Sphere: Yes.
Who makes Synthesis Tutor?
Synthesis Tutor is made by Synthesis, based in United States.
Who makes SAT Sphere?
SAT Sphere is made by SAT Sphere.
Which should I choose, Synthesis Tutor or SAT Sphere?
Choose Synthesis Tutor if you value engaging for young children and adapts to each child. Choose SAT Sphere if you value low monthly prices and free plan to try the course.