Khan Academy

by Khan Academy

4.2 172K+ reviews
32M+ Installs
09/22/2015 Released
Khan Academy icon
Khan Academy icon
Education

Khan Academy

by Khan Academy

4.2 172K+ reviews
32M+ Installs
09/22/2015 Released
Khan Academy screenshot 1
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Ratings Breakdown

4.2 ★★★★★ 172K+ ratings
5 69%
4 9%
3 5%
2 4%
1 13%

Data from Google Play at the time of writing.

What This App Actually Offers

Khan Academy is a free education app covering math from arithmetic through differential equations, plus science, economics, humanities, and grammar. It’s built around videos, interactive practice exercises, and articles, all wrapped in a mastery system that tracks what you know and recommends what to try next. It works for a wide range of users: students following along with school, adults refreshing rusty math skills, and homeschoolers piecing together a curriculum. The app makes clear upfront that some features, like community discussions, test prep, and teacher or district tools, only exist on the full website, not here.

Where It Really Delivers

The strongest praise from actual users centers on the same thing over and over: it works as a self-paced refresher for people who left school years ago. One reviewer went from kindergarten-level math to algebra in about six weeks to prep for a college placement test. Another credits it with getting ahead during Covid and specifically calls out fast, helpful customer service when something went wrong with their account. The gamified structure, earning rewards for completing lessons, keeps several reviewers coming back, and email reminders nudge people to maintain consistency instead of abandoning their progress.

The Layout and Course Structure

Users consistently like how each subject is broken into units, and the ability to pin courses you’re actively working on is called out as a genuinely useful touch. The English and grammar lessons are described as easy to follow and well built. Math videos get more mixed reactions: several reviewers say the pacing is slow, though they add it still makes concepts easier to understand once you sit with it.

The Missing Features That Bug People

The complaints are narrow but recurring. There’s no read-aloud or text-to-speech option, which parents of younger kids specifically want so children can work through material independently instead of needing an adult to read every question. Reviewers also ask for a simple visual marker, like a green checkmark, to show at a glance when a course is 100% finished, since right now tracking full completion isn’t obvious from the course icon. These aren’t dealbreakers, but they’re the kind of small polish issues that show up again and again in feedback.

Who Should Actually Download This

If you’re an adult going back to school, prepping for a placement test, or just trying to relearn math or science you forgot years ago, this app fits that use case well based on real user experience. Students supplementing classroom work also get clear value, particularly for grammar and general skill practice. Parents of younger children who need built-in narration should go in aware that reading support isn’t there yet. Anyone hoping to use teacher tools, test prep, or community features on mobile will need to switch to the website, since the app is intentionally limited to the core learning experience.

Pros

  • Completely free with no paywalls
  • Strong mastery system tracks progress
  • Wide subject range from math to humanities
  • Pinning courses keeps learning organized
  • Responsive customer service per users

Cons

  • No text-to-speech or read-aloud option
  • No visual marker for 100% completed courses
  • Some math videos feel slow-paced

What Real Users Say

Annie Vasilyev 5/5

“it's a phenomenal app! I use it as an adult woman who thought I hated math but turns outI lacked practice and consistency. this app gives you both! the layout of each subject unit is great. it reminds you to come back and use the app with an notification in your email i like that feature a lot. it's free.…”

👍 574 found this helpful
A Google user 5/5

“Awesome app. I am so thankful that it's all free content. I first downloaded this to refresh on math before my placement test for going back to college (I hadn't done a math problem in almost 6 years, so I started from Kindergarten and worked my way up to algebra within a month and a half) and I ended up…”

👍 516 found this helpful
Hired Assassin5 4/5

“So far so good. Brushing up and refreshing my memory on topics I studied when I was younger. One thing I like is the game aspect of it. You get rewarded when completing the lessons. One thing I would like for you guys to add is a green check mark on the course icon when a course is 100% complete.…”

👍 414 found this helpfulDeveloper responded

Reviews sourced from Google Play, selected by helpfulness at the time of writing.

App Info & Permissions

Developer Khan Academy
Content rating Teen
Contains ads No
Installs 32M+
Released 09/22/2015
Price Free

Permissions this app requests

📷 Camera Take pictures and videos
📱 Device ID & call information Read phone status and identity
📞 Phone Read phone status and identity
🖼️ Photos/Media/Files Read the contents of your USB storage; modify or delete the contents of your USB storage
💾 Storage Read the contents of your USB storage; modify or delete the contents of your USB storage
📶 Wi-Fi connection information View Wi-Fi connections

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Frequently Asked Questions

1

What is Khan Academy?

Khan Academy is a free education app from a nonprofit organization offering video lessons, interactive exercises, and articles across math, science, economics, and humanities. It uses a mastery-based system that gives instant feedback and recommends what to study next based on your current level. It's designed for students, teachers, homeschoolers, and adults returning to learning at any stage.

2

Is Khan Academy actually free?

Yes, all content in the app is completely free with no subscription or paywall, which multiple reviewers specifically praise. Creating a free account lets your progress sync across devices via khanacademy.org. There are no in-app purchases mentioned by users.

3

Can Khan Academy read lessons out loud for kids?

No, based on user feedback there is currently no built-in text-to-speech or read-aloud feature. Parents of younger children note this means kids often need an adult present to read questions aloud, limiting independent use for those who can't yet read well on their own.

4

Does the app include everything available on the Khan Academy website?

No, the app deliberately excludes several features found on the full website, including community discussions, computer programming content, test prep, and parent, teacher, and district tools. Those functions require visiting khanacademy.org directly. The app focuses on core video lessons, exercises, and the mastery tracking system.

5

Is Khan Academy good for adults relearning math?

Yes, this is one of its strongest real-world use cases according to user reviews. Adults have used it to prepare for college placement tests, working from basic arithmetic back up through algebra in a matter of weeks. The self-paced structure and instant feedback make it well suited for relearning material without classroom pressure.