Can I change plans anytime?

Yes, upgrade or downgrade instantly. Changes take effect next billing cycle.

Is there a family plan?

Contact us for multi-student discounts.

How much does Grassroot Academy cost?

Grassroot Academy offers a free plan with 3 hours of learning. Founding Student pricing starts from $29.99/month for 12 hours (Starter) or $79.99/month for unlimited hours (Growth). Founding Student prices are locked in for life.

Is Grassroot cheaper than Kumon?

Yes, Grassroot is significantly cheaper than Kumon. While Kumon costs $150-200 per subject monthly, Grassroot provides access to all subjects starting from $40/month, making it 70-80% more affordable.

What subjects are included in the subscription?

All plans include access to all subjects including Math, Science, English, SAT/ACT prep, AP courses, Programming, Languages, and more. You get access to all 15 AI tutors with any plan.

Is there a money-back guarantee?

Yes, we offer a full refund if you're not satisfied within the first 7 days of your paid subscription.

Plans

Free

Start learning

Start Learning

3 hours of usage per month, split across Learn and Practice modes*
Limited usage in Learn mode
Access to all public courses
Limited practice generation
Limited document upload for Learn and Practice modes
Limited custom module generation for Learn and Practice modes
Live learning
Learn on web and mobile
Real-time progress tracking
Detailed learning analytics

Starter

For regular learners

$29.99/mo.

Get Started

Everything in Free, plus:

12 hours of usage per month, split across Learn and Practice modes*
Extended usage in Learn mode
Unlimited practice generation
Unlimited document upload for Learn and Practice modes
Unlimited custom module generation for Learn and Practice modes
Voice conversations
Choose your tutor
Rollover unused hours (up to 3 months)

Growth

Learn without limits

$79.99/mo.

Get Started

Everything in Starter, plus:

Unlimited Practice mode
Unlimited Learn mode
Early access to new features

*Usage hours are consumed while actively using Learn and Practice modes.
Browsing courses, viewing analytics, and navigating the platform do not count toward your hours.

*Remediation model: 12 concepts (20% of 60-concept course) to close C→A gap. Based on 120-hour Carnegie unit. Human tutor efficiency from Bloom 1984 (2σ effect). AI tutoring from VanLehn 2011 meta-analysis. Relearning 50% faster than initial learning (Ebbinghaus). Hybrid: AI handles 75% easy concepts, human tutor focuses on 25% hard concepts. View full methodology

Input	Value	Source
Course length	120 hours	Carnegie Unit standard
Concepts per course	60 concepts	Industry standard
Mastery gap (C to A)	20% = 12 concepts	Grade band analysis
Relearning factor	0.5x (50% faster)	Ebbinghaus (1885)
Human tutor effect	2 sigma (98th %ile)	Bloom (1984)
AI/ITS effect size	0.76 sigma	VanLehn (2011)

Method	Hours	Speedup
Video Course (baseline)	46.8h	1.0x
Group Tutoring	27.0h	1.7x
Grassroot	8.2h	5.7x
Human Tutor	6.0h	7.8x
Grassroot + Tutor	4.5h	10.4x

Input	Value	Source
Target point gain	150 points	1250 to 1400
Points per pattern	~8 points	SAT structure analysis
Weak patterns to fix	19 patterns	150 / 8 = 19
Base prep time	80 hours	College Board
AI diagnostic accuracy	0.85	VanLehn (2011)
Deliberate practice effect	2-3x efficiency	Ericsson (1993)