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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Khan Academy vs Vocabulary

Khan Academy 4.6★ · Free + IAP 75
Winner Khan Academy
Vocabulary 4.8★ · Free to download 45

For comprehensive, multi-subject learning, Khan Academy is the better choice, especially given its free access, while Vocabulary is a niche app for vocabulary building that is heavily paywall-gated and has questionable definition accuracy.

Full reviews: Khan Academy · Vocabulary

Khan Academy offers a broad range of educational content across various subjects, with many users praising its helpfulness and free access, despite facing issues with app stability and input mechanisms. Vocabulary, while effective for some users in learning new words, is criticized for its aggressive paywalls, high subscription cost, and inconsistent definition accuracy.

Head to head

Features & Content Breadth edge: Khan AcademyR11R18R20R21
Khan Academy Khan Academy provides a wide array of educational content across multiple subjects, with users appreciating its thorough and clear teaching, and its ability to help with various courses from elementary to high school and even adult learning R11R20. However, some users find it difficult to locate specific subjects or courses within the app, sometimes needing to access content via a browser R18R21.
Vocabulary Vocabulary focuses specifically on vocabulary building, offering features like daily words, widgets, and quizzes . Users appreciate the ability to learn new words and improve charisma . However, some find the words irrelevant for daily conversation, the definitions lacking depth or being incorrect, and the examples unhelpful R63R67R75.
Ease of Use & Reliability tieR1R6R9R10
Khan Academy Khan Academy faces significant criticism regarding app stability, with frequent crashes, videos not playing, and glitches in lessons R1. Users report issues with the in-app keyboard, where it misinterprets inputs R1R6. Account login and progress tracking are also problematic, with users losing progress or being unable to sign in R9R10R13. Some mobile users also experience display issues with answers not fully showing .
Vocabulary Vocabulary's app design and widgets are generally well-received . However, users report issues with audio pronunciations not working or playing the wrong word . There are also complaints about the daily word notification settings not being respected, sending too many words .
Accuracy of Content edge: Khan AcademyR1R3R22R35
Khan Academy Khan Academy users report issues with incorrect solutions in lessons and questions, with some examples of mathematical errors R1R3R22R35. This leads to frustration and can undermine the learning experience.
Vocabulary Vocabulary receives numerous complaints about incorrect, shallow, or unhelpful definitions and examples R63R67R75R88. Users often feel the need to cross-reference with other sources, which diminishes the app's value.
Price & Value edge: Khan AcademyR56R61R64R66
Khan Academy Khan Academy is highly valued for being free, with no ads or subscription pop-ups, making it an accessible educational resource R56. This free access is a major draw for users seeking to learn without financial barriers.
Vocabulary Vocabulary is heavily criticized for its aggressive paywalls and high subscription cost, often cited as $50-$60 per year R61R64R66. Many core features, including games and learning tools, are locked behind these paywalls, making the free version very limited R64R66. Users also report being charged prematurely or without clear warning after a short free trial, and difficulty canceling subscriptions or getting refunds R61R70.
Pick Khan Academy if

you need a free, comprehensive learning platform across various subjects, are willing to tolerate some technical glitches, and prefer a self-paced, video-based learning style R20R56.

Pick Vocabulary if

you are specifically looking to expand your vocabulary, appreciate a widget-based approach to learning new words, and are comfortable with a high annual subscription cost for full features .

Evidence note: Reviews for Khan Academy are more diverse in their feedback, covering a wider range of features and issues due to its broader scope. Vocabulary's reviews are heavily dominated by complaints about its pricing model and the accuracy of its definitions, indicating a significant user dissatisfaction in these areas.

Frequently asked

Is Khan Academy truly free?
Yes, Khan Academy is free to use and offers extensive educational content without ads or subscription pop-ups, though it does have in-app purchases R56.
How much does Vocabulary cost?
Vocabulary is free to download but requires a premium subscription, typically costing $50 to $60 per year, to access most of its advanced features and learning tools R61R70R74R91.
Are the definitions in Vocabulary accurate?
Many users report that the definitions in Vocabulary can be incorrect, lack depth, or have unhelpful examples, often requiring them to cross-reference with other sources R63R67R75R88.
Does Khan Academy have technical issues?
Yes, Khan Academy users frequently report technical issues such as app crashes, videos not playing, glitches in lessons, and problems with the in-app keyboard and account login/progress tracking R1R6R10R13.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R11] Khan Academy 5/5 · US Good app: My son is getting ready for fourth grade and he has learned so much on khan academy what he learns on this app will surely help him later
  2. [R18] Khan Academy 3/5 · GB We need this pls 😭: This app is goated, we just need y’all to put the courses in the app, it’s hard to find the chrome tab with the course when it’s surrounded by a million others
  3. [R20] Khan Academy 5/5 · US Luv🌟: I have a quiet fear of going back to school now that im in my early 20s, and this has helped me find an easy service that helps me learn on my own in an easy and digestible way. I reccomend if you want to kickstart yourself in different topics!! Thank you!
  4. [R21] Khan Academy 3/5 · GB Ok until subject: I love khan academy, and it’s great until you need a specific subject then… not that great. For me I was trying to get khan academy to explain something for my homework, but I just couldn’t find the exact thing I needed. So it’s great and all if you don’t need a specific subject question and are fine with just following their ways.
  5. [R1] Khan Academy 1/5 · US Needs more work: Videos sometimes do not play, app crashes frequently and lessons also very frequently have incorrect solutions and glitches requiring you to restart the lesson. Typing using the in-app keyboard is also very finnicky, creating and logging into accounts do not work well, and things taught in the videos aren't in the lessons after.
  6. [R6] Khan Academy 3/5 · US keybord ragebait: the keyboard is absolute ragebait it thinks 2 = 1 and 7 = 9 the keyboard is the most annoying form of ragebait Hope to see more content too My parents make me do this a million times a day and learning is not fun and you cannot learn anything Unpurposeful app = this Ragebait app = this Uidfciugreifugiuefrgiufre
  7. [R9] Khan Academy 3/5 · US Khan academy: It was OK but it never showed me where I left off in the unit so I ended up retaking a whole unit over again!!
  8. [R10] Khan Academy 1/5 · US Fix this!: I had an account for a couple months and I made 5 accounts because of this problem!when I'm signing in my account it's saying "you password or username is incorrect" even though i know it is! Looks like I have to make another 2 accounts.
  9. [R3] Khan Academy 3/5 · US This is not math: They said 12 equals 10
  10. [R22] Khan Academy 2/5 · US They need to learn their math: Bro so I was doing this for online school right and I was doing this question abt rounding and it said it was wrong but ts was right and I asked my teacher she was like it’s right and gave me a low score
  11. [R35] Khan Academy 2/5 · US Review: 2 stars, The reason why I’m rating it 2 stars is because my daughter was doing math. Equivalent fractions to be exact. And she got the correct answer, she put in 6/8 in a fraction way (khan academy has those fraction tools). And she got it wrong 😑, she tried and tried but khan academy kept on saying wrong, wrong, and wrong.she came and showed me and I was sure it was the correct answer so
  12. [R56] Khan Academy 5/5 · US Khan academy: It’s an awesome educational app. It has very descriptive videos and it’s free no ads no pop-ups for “ get your subscription”. If you’re looking for an educational app, I recommend this.
  13. [R61] Vocabulary 1/5 · US They don’t really care, as long as they get your money.: A fine app but unfortunately I don’t believe that the premium version is worth $50 a year. (Maybe it is to someone, but not me). The developer’s FAQ site that’s linked in the App Store isn’t helpful to me as it doesn’t have any email contact information. So I’m leaving a review here. I’d like to cancel my subscription (I thought I had alread
  14. [R64] Vocabulary 1/5 · US Greedy: There is absolutely nothing you can do with the free version
  15. [R66] Vocabulary 3/5 · US Practically Requiring Pay: The application’s most basic functions are granted freely; however any more advanced functions, such as games or learning tools, are hidden behind paywalls. I would say that the concept is lovely but paying 60 bucks for it is probably not worth it. The basic functions of the app are pleasing, though.
  16. [R70] Vocabulary 1/5 · US $60 subscription: I did not intend to subscribe to the premium subscription but it still charged me with no warning on the third day. No refund. Not worth $60.
  17. [R74] Vocabulary 5/5 · US vocabulary: i love leaning new words but I don’t like how you need to pay $60 to get all of the extra stuff I would prefer to have a longer free trial and or to pay less
  18. [R91] Vocabulary 1/5 · US Costs money: Way too expensive
  19. [R63] Vocabulary 3/5 · US Definitions are polarizing: The provided meaning can lack depth to the whole inherent meaning of the word. I find myself unable to trust the provided definition and to back source into a google inquiry of the words. A shame. Can we look into this? I love the concept of this app!
  20. [R67] Vocabulary 1/5 · US Incorrect definitions??: I downloaded this app because the widget seemed great. It seems to be AI and I’m assuming that’s the reasoning behind the incorrect definitions I was seeing
  21. [R75] Vocabulary 3/5 · US Good but not great.: It seems as if this might be filled entirely by AI. There are some great words in here, but some of them are really mundane. The examples of how to use a word in a sentence are largely unhelpful (“the meal had a ‘cheffy’ presentation”). In the quizzes, the “correct” answers are often questionable and/or more than one response could arguably be correct. This would all be OK fo
  22. [R88] Vocabulary 2/5 · US The wordage used in the Definition of the Words kinda sucks and to set an shortcut to reload the wal: The wordage used in the definition of the words kinda sucks. Like look at a word and compare it with google AI Overview sometimes it is worded better in the AI Overview. It’s crazy because isn’t this app like at least 1 year old. You would think that this app would be better than this. Also to loa
  23. [R13] Khan Academy 2/5 · US Khan academy deleted all of my progress: So I just came back to do khan academy and I see a screen telling me to sign up even though I was at the end of 4th grade. Khan academy should see what happened. Now all of my progress is gone and I was on my last unit in 4th grade

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store