Khan Academy review: price, free version and privacy

Our verdict

Pick Khan Academy to rebuild math, grammar or science foundations for free at your own pace. For full SAT practice tests and a score plan, use it alongside dedicated test prep.

What Khan Academy is

Khan Academy is a nonprofit library of free lessons: thousands of videos, interactive exercises and articles. The description lists math from arithmetic to calculus, differential equations and linear algebra, plus biology, chemistry, physics, economics, grammar and history. Exercises give instant feedback and step-by-step hints, and a mastery system recommends what to study next.

Who it suits

• Students on a budget
• Fixing math and grammar foundations before a test
• Self-paced study across many subjects

Strengths

• Completely free, with no in-app purchases
• Math from arithmetic to calculus with hints and instant feedback
• A mastery system that suggests the next skills to practice
• Downloads for offline viewing
• Apple Editors' Choice, rated 4.6 from about 112,900 ratings, in 26 app languages

Limits

• The description says test prep, community discussions, programming content and parent and teacher tools are on the website, not in the app
• No SAT practice tests or score prediction are described in the listing
• Rated 13+ on the App Store
• Usage data is linked to you

What the free version does

Everything in the app is free. Creating a free account syncs your progress with khanacademy.org.

Price

Khan Academy is free on the US App Store in November 2026, with no in-app purchases listed.

Privacy

No tracking is declared. Usage data is linked to you; contact info, search history, identifiers and diagnostics are collected without being linked.

What the screenshots show

The screenshots show a subject list with categories such as Arts, Computing and Test prep, and a 'Browse Khan Academy' screen with Math, Science, Economics and Humanities. The description says full test prep is accessed on the website.