Educational apps for adults, by what you want to know

By the edgi team Facts checked October 19, 2026

The best educational app for an adult who wants to know more about the world is edgi. There's no course to enroll in and nothing to pass: you play a free 60-second Lesson on whatever you're curious about, and the idea becomes a card on a Map of everything you know. If you need a certificate, use Coursera; a language, Duolingo; school math done properly, Khan Academy or Brilliant; a craft from a big-name teacher, MasterClass.

We make edgi, and we built it so a grown-up can learn something new without signing up for a course.

From each app's US App Store listing or its own site, checked October 19, 2026.

Most lists are course catalogs

Search "educational apps for adults" and you get career-course lists: Coursera, edX, LinkedIn Learning, Udemy. They're built for someone who needs proof they learned something, with weeks of video, assignments and a certificate at the end.

Most adults asking this don't need proof. They want to understand the things they keep running into: why interest rates matter, how a vaccine works, what a stoic actually believed. School taught a lot of us that being right matters more than being curious, and it made that kind of learning feel like homework. The best educational app for it is the one you open because you want to.

Top pick: edgi, for knowing more about everything

On edgi, a Lesson is one idea in 60 seconds, from why red wine dries your mouth to what the yield curve is betting on. You play it rather than read it, then use the idea on a question before you leave. Finish it and the idea becomes a card in your collection, lit up on your Map next to everything it connects to. Pick one of those and keep going. Or stop. Nothing is overdue.

The Map holds more than 104,000 ideas, 44,000 of them with a Lesson, joined by 296,000 connections, so you won't run out of subjects. On days you'd rather watch, edgi has short videos too.

A lot of adults say they've forgotten everything from school. This Lesson tests that. You read a definition, like the plastic tip on the end of a shoelace, and see whether the word comes back, and then you get one small clue. After that come divers in 1975 who learned words on a beach or underwater, and a 2021 repeat with 16 divers that didn't find the same effect.

Cue-dependent forgetting Cue-dependent forgetting is failing to recall something that's still stored because the right cue is missing.

60-second Lesson

Cue-dependent forgetting

Most of what you think you forgot is still in there. What's missing is the cue that leads back to it.

Play it here Read about cue-dependent forgetting

A certificate or a language: Coursera or Duolingo

Coursera is the place for a credential: courses and professional certificates from "350+ leading universities and companies," including Google, IBM and Stanford, by its own page. Coursera Plus is $59 a month or $399 a year, with a 7-day trial, and a single course runs $49 to $79 a month. It has 4.85 stars from 177,190 App Store ratings.

For a language, Duolingo is still the default: free, with game-like lessons in 40+ languages, plus chess and math. Super Duolingo, which removes ads, is sold in the app.

School subjects done properly: Khan Academy or Brilliant

Khan Academy is a free nonprofit ("You can learn anything. For free.") and the best way back into the math and science you skipped, with practice exercises and instant feedback. It's slower than a Lesson and more thorough.

Brilliant is the paid version for math and code. Its App Store name is "Brilliant: Learn Math & Coding," you learn by solving interactive problems, and plans run from $19.99 to $191.99 in the App Store.

A craft or a lecture series: MasterClass or The Great Courses

MasterClass is video classes from big names in their field, from cooking to writing. The App Store lists Individual at $119.99 a year, up to $239.99 for Family.

The Great Courses is the long-form version: whole courses taught by professors and experts, on history, science, philosophy and more. It's $19.99 a month or $149.99 a year in the iPhone app.

For the most fun options rather than the most educational, see fun learning apps for adults.

Pick something else only if…

• You need a certificate: Coursera.
• You want a language: Duolingo.
• You're studying for a specific exam: Khan Academy for school subjects, or a course built for that exam.
• You need Android. edgi runs on iPhone and in the browser.

FAQ

What is the best educational app for adults? edgi, if you want to know more about the world: free, 60 seconds a Lesson, a card for every idea on a Map of what you know. For a certificate, Coursera; for a language, Duolingo.

Can adults learn for free? Yes. edgi is free for any subject, Khan Academy is free for school subjects, and Libby lends library ebooks and audiobooks free "with just your library card."

Are there educational apps for adults with short lessons? Yes. An edgi Lesson takes 60 seconds. Duolingo calls its lessons "quick, bite-sized," and MasterClass's listing says it now cuts classes into lessons of 5 to 10 minutes. Coursera is built around full courses.

Is edgi free? Yes. Lessons, cards and the Map are free, and Sets unlock with coins you earn by learning, not money. An optional Pro subscription adds extras like offline access.