Principia

Plans and prices

Every plan, in full

On the record

Account requirement

The site says no account is required to start; creating an account enables paid subscribers to sync learning data across devices.getprincipia.com · read 11 Oct 2026

Children’s privacy

For users under 13, the company says it requires verifiable parental consent and collects the parent or guardian’s email and the child’s learning progress.getprincipia.com · read 11 Oct 2026

Curriculum

The curriculum has 8 tiers and 93 concepts, from Numbers & Fractions through Calculus II & Proofs.getprincipia.com · read 11 Oct 2026

Guided lessons

Yesgetprincipia.com · read 22 Sep 2026

Integrations

The privacy policy names RevenueCat for subscription entitlements and Supabase for cloud storage and progress syncing for paid subscribers.getprincipia.com · read 11 Oct 2026

Intended learners

The product describes its curriculum as covering 6th grade through college-level mathematics.getprincipia.com · read 11 Oct 2026

Privacy

The company says it does not sell personal information or serve ads, and lists learning progress, account email when provided, and device diagnostics among data it may collect.getprincipia.com · read 11 Oct 2026

Purpose

Principia teaches mathematics from fractions through college calculus, emphasizing the reasoning behind formulas.getprincipia.com · read 11 Oct 2026

Security

The privacy policy describes TLS/HTTPS encryption in transit, encryption at rest in its Supabase cloud infrastructure, access controls, and regular security reviews.getprincipia.com · read 11 Oct 2026

Paid from

6.99getprincipia.com · read 22 Sep 2026

Support

The site lists [email protected] for customer questions and technical assistance.getprincipia.com · read 11 Oct 2026

Supported platforms

ios,macosgetprincipia.com · read 22 Sep 2026

Teaching features

Lessons include animated visualizations, step-by-step guided problem walkthroughs, and connections between mathematical topics.getprincipia.com · read 11 Oct 2026

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