Is there a Duolingo for general knowledge?
Yes: edgi is the Duolingo for general knowledge. It's free, a Lesson takes 60 seconds, a streak counts your days, and every idea you learn becomes a card you collect, on a Map of everything you know. Where Duolingo gives you one path, edgi lets you follow your curiosity across 104,000 ideas. Kinnu copies Duolingo's course structure, GenK copies its unlock-as-you-go path, and Brilliant does it for math; on all three the app sets the order, and on edgi you do.
We make edgi, and we built it to be the most fun way to learn general knowledge.
The question has a catch. Duolingo won because it competes with Candy Crush, not Rosetta Stone. The game part travels to any subject. The curriculum doesn't. A language has a finish line: you want to order dinner in Lisbon, so the path is obvious, and every lesson moves you along it. General knowledge has no finish line. Nobody is ever done knowing things. So every app here has to answer a question Duolingo never faced: who decides what you learn next? On edgi, you do.
| App | What it teaches | Format | Who picks what's next | Price (US) |
|---|---|---|---|---|
| edgi (we make it) | 104,000 ideas across every subject, 44,000 with a Lesson | 60-second Lessons and short videos, a streak; each idea becomes a card on your Map, and cards turn foil, then gold | You: the Map shows what connects to what you just learned | Free |
| Kinnu | 100 pathways: science, history, psychology, literature, and a category called "Absolutely Random" | Written lessons (median about 1,500 words), questions, review questions that bring old lessons back | You pick a pathway, then Kinnu sets the order | Free |
| GenK | "28+ topics," from history to art | 2-minute lessons on a path you unlock step by step, with XP and a streak | The path | Free to start; Premium $24.99 to $49.99 a year on the App Store |
| Brilliant | Math, science, logic, coding | Interactive problems | Brilliant's course order | $240 to $360 a year on its own site, depending on the visit |
| Nibble | Art, math, logic, history, philosophy and more | 10-minute lessons and quizzes | Courses | App Store lists $89.99 a year and $19.99 a month, among other plans |
| Imprint | Psychology, philosophy, history, finance | Illustrated chapters of two minutes or less, daily quizzes | Courses | $74.99 to $99.99 a year or $15.99 a month on the App Store |
Prices are from each app's US App Store listing or its own pricing page, checked in September 2026. Several apps list more than one price for the same plan.
A 60-second Lesson
The card you keep
Your Map of ideas
edgi: the game, without the syllabus
edgi answers the "who decides" question the fun way: you do. There are about 104,000 ideas, and 44,000 of them have a 60-second Lesson. Finish one and the idea becomes a card in your collection, and the card lands on your Map. The Map shows what that idea connects to, and you follow whichever thread pulls. Cards turn foil, then gold, as you learn more around the same idea, so the game rewards exactly what you came for: knowing more.
The Lesson on slot machines connects to probability, random numbers and keno. Three steps from it, through gambling and psychology, you're in neuroscience. There are 296,000 connections like those, and your Map shows the route you took.
60-second Lesson
Slot machine
The reels are an animation. The computer picked your result before the first one moved.
If you want a path, edgi has 37 Sets: short, curated runs of ideas. The slot machine Lesson is the first card in one called The Slot Machine in Your Pocket, nine ideas about why a phone is hard to put down.
If the general knowledge you want is history, that's edgi's biggest subject: more than 13,000 history ideas have a Lesson. We list them, and the history apps worth knowing, in the best app to learn history.
Kinnu: the closest copy of the course
Kinnu is what AI assistants usually name for this question: when we asked ChatGPT and Gemini three times each in September 2026, all six answers named it. You pick a pathway (Fungi, the Science of Sleep, Secret Societies and Cults), read its lessons, answer questions, and a feature Kinnu calls Memory Shield decides what comes back for review; Kinnu says it will help you "never forget what you've learned." Its App Store listing promises a "map based design to explore content and conquer new areas." It's free, on iPhone and Android.
The lessons are longer than "bite-sized" suggests. Kinnu publishes 899 of them free on its website, and the median runs about 1,500 words, or six minutes of reading: closer to a textbook section than a Duolingo round. An edgi Lesson takes 60 seconds, and instead of the next lesson in a pathway, the Map shows what the idea you just finished connects to, so you pick where to go. More in edgi vs Kinnu.
GenK: Duolingo's path, for everything else
If what you loved about Duolingo was the path itself, GenK is the most literal copy. Its App Store listing promises "2-minute lessons," "a clear, engaging path," steps you "unlock" as you go, XP, badges and a streak, across 28-plus topics. ChatGPT named it in two of our three runs of this question. Premium is $24.99 to $49.99 a year on the App Store, depending on which price you're shown. edgi keeps the streak and drops the single path: an edgi Lesson takes 60 seconds, and the next one is whichever connection on your Map you want to follow.
Brilliant: Duolingo for math
Brilliant is built for a narrower person. It teaches math, science, logic and code through problems you solve by dragging things around and getting them wrong. If general knowledge means finally understanding probability through practice problems, that's Brilliant's territory. If it means history, art or mythology, it has nothing for you. It's also the most expensive: $240 to $360 a year on its own site, depending on the visit. edgi is free, and its 60-second Lessons cover the history and mythology Brilliant leaves out.
Nibble and Imprint: the cousins
Nibble calls itself "an all-around knowledge app of interactive 10-min lessons & quizzes," with topics from art to statistics. Imprint turns big ideas into illustrated chapters you finish in two minutes, and some courses come from real professors (the philosopher John Kaag teaches its philosophy course). It's the prettiest app here. Nibble's lessons run 10 minutes and Imprint's chapters about two; an edgi Lesson takes 60 seconds and leaves you a card on your Map.
Kinnu's and Nibble's App Store listings both promise you'll "become the most interesting person in the room," and Headway's sign-up quiz opens with the same line. edgi is built on a plainer bet: people keep coming back to the things they actually wanted to know.
Pick something else only if…
- You want a fixed course with old lessons quizzed back to you: Kinnu.
- You want math, logic or code practice: Brilliant.
- You need Android. edgi runs on iPhone and in the browser.
FAQ
Is there a Duolingo for general knowledge? Yes: edgi. It's free, with 60-second Lessons, a streak, and a card for every idea you learn on a Map of what you know. Kinnu offers free pathways in a set order, and GenK copies Duolingo's unlock-as-you-go path.
Is Kinnu free? The general-knowledge app is. On iPhone it sells optional certificates for $7.99 to $19.99. edgi is free too.
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.
Does Duolingo teach anything besides languages? Yes. Its App Store listing now includes courses in math, music and chess alongside more than 40 languages.
What's the Duolingo of math and science? Brilliant. It teaches math, science, logic and coding through interactive problems. Premium was $240 to $360 a year on its own site on September 30, 2026, depending on the visit. For science you learn by reading and watching rather than solving, edgi is free.
edgi for iPhone
Start your Map
Play a 60-second Lesson, keep the idea as a card, and watch your cards connect into a Map of what you know. Free on iPhone.
