19 best apps for learning skills as an adult, compared by subject
Pick the app by the skill: Duolingo for a language habit, Khan Academy for free academic foundations, Quizlet for exam study, Mimo for coding, and Cadence for a personal course on any topic you choose, including skills no catalog covers.
Learning Cadence editorial, , updated , 18 min readHow we work
Most roundups rank learning apps as though they compete. They mostly do not. Duolingo, Quizlet, Coursera, and Yousician can all be excellent while solving completely different learning jobs.
On 21 August 2026, we checked the US Apple top-free Education chart and Google Play's Education collection, then kept the major products that teach an adult directly. We left out classroom administration, parent messaging, children-only products, plant scanners, and driving-test utilities. Every app below is described from its current official pages and includes the situation where it is the wrong choice.
WhyYou type the topic and get an ordered course you take at your own pace. This is our app.
The apps
Every app, with what it is bad at.
Start with the job you need the app to do, then read the tradeoff.
01
Duolingo
Languages, math, music, and chess
Duolingo teaches languages, math, music, and chess through short exercises on a guided path. Its streak, daily goal, reminders, and game mechanics make the return habit unusually visible, which is why the same shape is copied across education apps.
Best for
Building and holding a daily language habit through short guided exercises.
Not for
A broad subject outside its current catalog, or reaching confident conversation through the app alone.
Price
Course access is free with ads. Optional paid tiers remove ads and add premium features.
Babbel offers step-by-step courses in 14 languages, written by language experts. Lessons usually take 10 to 15 minutes and combine listening, speaking, writing, grammar, review, and real-life dialogue instead of relying mainly on game mechanics.
Best for
Adults who want a clear language sequence with explicit grammar and pronunciation practice.
Not for
Long-term free learning, because the free access is mainly a way to inspect each course before subscribing.
Price
Registration and the first lesson of every course are free. Full course access requires a subscription.
Speak teaches useful phrases, asks you to repeat them in new situations, then moves into back-and-forth spoken conversations in the app. The product is built around speaking aloud and receiving feedback instead of completing silent vocabulary drills.
Best for
Practicing spoken language when you want repeated conversation without the pressure of another person.
Not for
A broad permanent free tier, or learners who mainly want detailed reading and writing instruction.
Price
A 7-day free trial, followed by a paid Premium or Premium Plus subscription. The current amount varies by region and offer.
Khan Academy is a nonprofit that publishes full course sequences in math, science, economics, and test preparation. Every lesson is free, there are no ads, and the practice sets tell you which idea you have not understood yet instead of only marking you wrong.
Best for
Rebuilding a foundation you missed at school, especially in math and science.
Not for
Soft skills, workplace situations, and creative subjects.
Price
Free. It is funded by donations, not subscriptions.
Brilliant offers guided math, science, and computing courses with interactive problems and explanations. Try a sample to see whether the level and feedback suit you. We have not measured its learning outcomes against the other apps in this comparison.
Best for
People who want to work through interactive problems on a guided subject path.
Not for
Subjects outside math, science, and computing, or learners who need unlimited daily access without a subscription.
Price
Brilliant Free provides two keys a day. Each key unlocks one lesson or practice set, and free users move through courses in order. Premium removes the daily limit, allows jumping ahead, removes ads, and gives full Koji access.
Photomath scans a printed or handwritten math problem, or accepts one through its calculator, then shows the solution as a sequence of steps. Its coverage runs from elementary math through algebra, geometry, trigonometry, statistics, and calculus.
Best for
Understanding the step where you became stuck on one exact math problem.
Not for
Replacing a complete math course, or checking an answer without attempting the problem yourself first.
Price
The Basic plan is free and includes step-by-step explanations. Paid access adds visual aids and more detailed how and why guidance.
Coursera hosts courses from universities and companies, with video lectures, readings, assessments, and paid certificate tracks. The first module of nearly every course can be previewed free, which makes it useful for checking the instructor and workload before paying.
Best for
Subjects where the name on the certificate matters to an employer or an application.
Not for
A ten-minute daily habit. Most courses expect real study blocks.
Price
The first module of nearly every course is free to preview. Continued access, graded work beyond the preview, certificates, and subscription plans are generally paid.
edX was founded by MIT and Harvard and works much like Coursera. The audit track lets you follow a university course for free for a set period. Verified certificates and full programs are paid.
Best for
Following a real university syllabus without paying for the badge.
Not for
Anyone who wants permanent access, since audit access is usually time limited.
Price
Auditing is free on most courses. Certificates and programs are paid.
Practical and technical skills, bought one course at a time
Udemy is a marketplace, so anyone can publish a course. Quality varies a lot between instructors, which makes the ratings and the free preview lessons worth using before you buy. It is strong for software, tools, and other subjects where you want a specific technique.
Best for
One concrete tool or technique you need soon.
Not for
Consistent quality without doing your own checking, or a daily learning habit.
Price
Courses are bought individually and are discounted often.
LinkedIn Learning covers business, software, and creative skills in video, audio, and text. Check the format of the course you want. Many public libraries give cardholders free access, which is the cheapest way in and is often overlooked.
Best for
Workplace software and management topics, especially if your library or employer already pays for it.
Not for
A class that must cover a particular software version or use a particular format unless you have checked the course details.
Price
A subscription, included with some LinkedIn Premium plans. Many public libraries provide free access with a library card.
Skillshare focuses on creative work such as illustration, design, photography, video, writing, freelancing, and marketing. Classes come from working creatives, and learning paths help connect individual videos into a broader goal.
Best for
Learning a creative technique when you want to follow an instructor and make something alongside the class.
Not for
Academic depth, recognized professional credentials, or consistent assessment across every instructor.
Price
A trial is followed by an annual membership with access to the full class catalog. Cancel before the trial ends to avoid the annual charge.
Mimo teaches Python, JavaScript, HTML, CSS, SQL, React, Swift, and related development skills through guided paths, short coding exercises, and projects. You write code during the lesson, then combine the ideas in work you build yourself.
Best for
Starting coding through small interactive exercises before moving into larger projects.
Not for
Learning software development without eventually building and debugging projects outside the guided lesson.
Price
Free to start. Paid plans add broader access to paths, projects, certificates, and career-focused features.
Yousician listens while you play guitar, bass, ukulele, piano, or sing, then reports on accuracy and timing. Guided lessons and songs make the real instrument part of the practice instead of asking you only to watch a demonstration.
Best for
Practicing one of several instruments at home when immediate note and timing feedback helps you continue.
Not for
Replacing a teacher who can diagnose posture, tension, tone, interpretation, or a habit the microphone cannot recognize.
Price
A subscription product with a free trial or limited starting access. Check the current store offer before beginning a trial.
Simply Piano focuses on piano and keyboard. It teaches notes, chords, songs, and technique in a guided sequence, listens as you play, and responds immediately when it recognizes the note.
Best for
A piano beginner who wants a clear starting sequence and immediate feedback while playing a real keyboard.
Not for
Other instruments, advanced interpretation, or replacing a teacher who can see posture and hand tension.
Price
A subscription product with a free trial or limited starting access. Check the current store offer before beginning a trial.
Quizlet lets you create or find flashcard sets, then turn them into adaptive practice questions. Its newer tools can also build study guides, practice tests, and flashcards from notes, slides, and PDFs.
Best for
Preparing for an exam or turning your own course material into repeated active-recall practice.
Not for
A pre-built curriculum, or trusting a public study set without checking who made it and whether it is accurate.
Price
Flashcards and some study features are free. Quizlet Plus plans raise or remove limits and add advanced study tools.
Anki is a flashcard tool that schedules reviews using spaced repetition. You rate how well you recalled each answer, and the scheduler uses your reviews to estimate when to show a card again. Create cards or choose a shared deck, and check that the material fits what you need to learn.
Best for
Facts, vocabulary, and anything you must recall exactly.
Not for
Replacing explanations, worked examples, or practice in using an idea. Choose cards that support the subject you are studying.
Price
Free on desktop and Android. The iPhone app is a one-time purchase that funds the project.
Deepstash turns ideas from books, articles, podcasts, and videos into short cards that can be read in a few minutes, saved, and organized into collections. Its personalized feed is built for daily discovery more than for following one subject in order.
Best for
Replacing an idle social-media scroll with short ideas you can save for later.
Not for
A stable course sequence, assessed practice, or material where every interpretation must be checked against the original source.
Price
Free access includes idea cards and personal collections. Pro removes ads and adds features such as audio, offline access, and longer history.
Headway condenses nonfiction books into short text and audio summaries you can finish in a sitting. It is a fast way to decide whether a book is worth your time, and a reasonable way to recall one you have already read.
Best for
Covering a lot of book ideas quickly, or triaging a reading list.
Not for
Learning a skill. A summary tells you what a book argued, not how to do the thing.
A learning app with a personal tutor, for any topic you choose
This is our app. See the disclosure above.
Cadence brings the best ideas from books, research, expert practice and standout articles into a course shaped to your goal. You choose the topic, from a work skill to a subject you are curious about, and say where you are starting. Cadence plans an ordered 7 to 30 lesson course around it and tutors you through it. Each lesson can be read or played as audio, Spark, the tutor, gives a hint when an answer misses and brings earlier ideas back for review, and practice gives feedback on your own answers.
Best for
Turning your own starting point into one coherent course you can keep progressing through.
Not for
Anyone who needs a recognized certificate, a named instructor, or a language course with speaking practice.
Price
Free to start, with 2 new lessons a day, audio and 4 lesson voices included, and 4 new custom courses a month. Plus makes new lessons, new courses, and Ask Coach unlimited and includes 10 practice sessions a day, adds 8 more voices for 12 in total, and raises live voice practice to 15 minutes a day, for US$49.99 a year on the web, with a 7-day trial.
A chart position and a good learning fit are different things.
Education charts mix direct learning with school portals, parent communication, children's entertainment, scanners, test utilities, and products having a short download spike. Copying the chart into a best-app list would make the list less useful.
We use the charts to find omissions, then ask whether an adult can learn directly in the product and whether it owns a distinct job. That is why this guide includes specialist apps such as Photomath, Mimo, and Yousician alongside broad platforms such as Coursera and Udemy.
The real problem
Choosing the app is the easy part.
Downloading several learning apps does not solve the return problem. The useful question is whether an app makes the next study step clear enough that you can return on a tired day.
Three practical choices can matter more than another feature.
Choose a study unit you can return to consistently. Set your pace around the task and the time you have.
Choose the next lesson or practice task before you finish, so you know where to begin when you return.
The thing you are learning connects to something real in your week. A concrete goal gives you a reason to use the next lesson.
Where we fit
Where Cadence fits best.
We make Cadence, a learning app that builds a personal course on any topic you choose. It fits when you know what you want to learn, no catalog covers your situation closely enough, and you want to keep learning each day.
You type the topic, answer a few setup questions about your level and what you want to be able to do, and Cadence builds a syllabus and the lessons inside it. Saved course progress shows where you left off when you return.
Choose specialist apps when their format already matches the job: Duolingo, Babbel, or Speak for a language; Coursera or edX for a certificate; Khan Academy for math from the ground up. Cadence focuses on goals that begin with your own situation and need a path built around it.
Put it into practice
Start it today, one lesson at a time.
Cadence builds a course around your goal, with lessons, practice and saved progress. Learn at your own pace. Cadence is our app.
Is there an app that builds a course on any topic I choose?
Yes. Cadence, our app, builds a personal course on any topic you choose: type the topic, answer a few setup questions, and it plans the lessons. Morso and Socrati also generate courses from a topic or your own material. For a subject with an established curriculum, such as a language or school math, a catalog app like Duolingo or Khan Academy is usually the better start.
What is the best app for learning skills as an adult?
There is no single best one because the apps are built for different skills. Duolingo is strongest for a language habit, Khan Academy for free academic foundations, Quizlet for exam study, Coursera and edX for recognized certificates, Mimo for beginner coding, and Cadence for a custom course on a topic you choose.
Are any of these learning apps completely free?
Khan Academy is fully free with no ads, and Anki is free on desktop and Android. Duolingo, Brilliant, Cadence, Quizlet, and Mimo have useful free access with limits. Coursera now offers a free first-module preview of nearly every course, while edX still offers time-limited audit access on nearly all courses.
How long should an adult study each day?
Match the session to the task and the time you have. Choose a pace you can return to consistently. Leave time for practice and feedback, then check what you can recall or do without the lesson open.
Do learning apps actually work for adults?
Judge the specific app against your goal. Try a lesson, close it, and explain an idea or attempt a related task. Return later and try again. Check the accuracy of the teaching and whether feedback helps you improve. A streak or completed lesson alone does not show what you have learned, and this roundup does not establish that one app format produces better results than another.
Is a learning app better than just using ChatGPT?
Try the same learning task in both. Compare the explanation, practice, feedback, and ease of resuming later. Check what you can do without assistance and what each option costs. Choose the workflow that fits your goal; this comparison does not establish that either category teaches better.
Why are some popular Education chart apps not included?
The store category also contains classroom portals, parent messaging, children-only products, plant scanners, driving-test utilities, and short-lived chart spikes. This guide covers major products where an adult learns directly. We track the charts for new gaps without treating every download spike as an editorial recommendation.
See it in concrete terms
Explore example courses for your goal.
Explore these example outlines to find a goal you want to work on.
We started with durable adult self-learning brands already covered by the blog, then checked the current US Apple top-free Education chart and Google Play Education collection on 21 August 2026. We included major apps that teach an adult directly and grouped them by learning job instead of download rank.
What we checked directly: We opened the current official site, help page, or first-party store listing for every app in the comparison and checked its subject, lesson format, free boundary, and purchase model.
Limits of this review: We did not buy a subscription to every paid app and did not test every signed-in, offline, or AI feature. Daily chart positions also change. Claims stay attributed to the official pages linked in each entry, and no exact competitor prices are quoted because they move by region and offer.
