How do their growth rates compare?

Brilliant has a month-over-month growth rate of -11.9%; Synthesis Tutor has -8.7%.

How does pricing compare?

Brilliant: Freemium. Brilliant uses a freemium model: a limited free experience is available, while a Premium subscription unlocks the full course library and unlimited practice. Annual plans are the cheapest per month, and there are separate school/classroom plans. Synthesis Tutor: Free Trial, Paid. Synthesis uses a 7-day free trial with no credit card required, then paid plans billed monthly or annually. Published rates include a family plan at $29 per month or $119 per year, Starter at $119 per year, Pro at $239 per year with personalized lesson planning and progress emails, and a Live tier at $480 per month that adds six human tutoring sessions. A single plan covers up to seven children, and annual billing works out to roughly $1 per day. Confirm current pricing on the official site.

What are alternatives to Brilliant and Synthesis Tutor?

Other tools in related categories include Coddy, Astra AI, DataCamp, MathGPT, Up Learn.

Brilliant vs Synthesis Tutor — Traffic (2.43M vs 130.47K), Pricing & Verdict

Open AI Tools

Brilliant vs Synthesis Tutor — Traffic (2.43M vs 130.47K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Brilliant	Synthesis Tutor
Official Domain	brilliant.org	synthesis.com
Pricing Model	Freemium	Free Trial, Paid
Monthly Visits	2.43M (2,426,610)	130.47K (130,472)
MoM Traffic Delta	-326.35K (-11.9%)	-12.47K (-8.7%)
Primary Market & Share	🇺🇸 United States (41.9%)	🇺🇸 United States (31.2%)
Direct Visits / mo	1.2M	82.7K
User Rating	4.6	4.3
Supported Platforms	Website	Website