Comparison

Crash Course vs Quizzelo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Crash Course

Access thousands of free educational videos covering humanities and sciences. Enhance your learning with supplemental flashcards and quizzes for select courses. Join a community dedicated to making education fun and engaging.

Highlights
  • Thousands of educational videos
  • High school and college level courses
  • Humanities and sciences subjects
  • Supplemental flashcards
  • Quizzes for review
  • Community of learners
Features
Read full description

Watch thousands of educational videos and review your learning with the Crash Course App! At Crash Course, we believe that high-quality educational content should be available to everyone for free. We produce courses that accompany high school and college-level classes ranging from the humanities to the sciences. On YouTube we have created a community of over 10 million subscribers that believe, like us, that learning should be fun, engaging, and thoughtful (and silly when appropriate). This app is a portal to our thousands of videos online and a place to review your learning with supplemental flashcards and quizzes. Flashcard decks are currently available for all episodes of Anatomy & Physiology, Chemistry, and Organic Chemistry, and we'll be continually adding more content. So please join our community of learners because you are the exception!

About

Quizzelo

Turn studying into an engaging game with adaptive quizzes, spaced repetition flashcards, and AI-generated study packs. Track progress, play brain games, and access helpful calculators. A premium subscription unlocks advanced features.

Highlights
  • Adaptive trivia quizzes
  • Spaced repetition flashcards
  • AI-generated study packs
  • Brain games and daily puzzles
  • Progress tracking with skill tiers
  • Web and mobile sync
Features
Read full description

Quizzelo turns studying into a game you actually want to play. TRIVIA THAT ADAPTS TO YOU Play quiz sessions across dozens of categories, from science and geography to test prep like SAT, GRE, TOEIC, and TOEFL vocabulary. Every answer updates your skill rating, so questions stay challenging without becoming frustrating. Get instant feedback and clear explanations after every question. Create your own custom categories for anything you want to learn. FLASHCARDS WITH SPACED REPETITION Build decks in seconds and review them with a proven spaced repetition schedule. Cards you know well come back later, cards you miss come back sooner. Rate each card with one tap and let Quizzelo plan your next review. STUDY PACKS, GENERATED FOR YOU Paste your notes or describe a topic, and Quizzelo builds a ready-to-study set of flashcards and quiz questions. BRAIN GAMES AND DAILY PUZZLES Train memory and reflexes with quick games: sequence memory, number memory, reaction time, and higher-or-lower. Come back every day for a fresh Connections puzzle. AND MORE Track your progress per category with skill tiers from Bronze to Platinum. Handy calculators for everyday decisions, including retirement and buy-vs-rent. Sign in with Apple or Google, and your progress syncs with Quizzelo on the web. Quizzelo is free to play. Quizzelo Plus unlocks skill ratings with adaptive difficulty, AI question explanations, and monthly AI study packs. Terms of Use: https://quizzelo.com/terms Privacy Policy: https://quizzelo.com/privacy

Screenshots

Crash Course3 screens
Quizzelo4 screens

Verdict

The call

The clearest difference is update cadence: Quizzelo at every 5 days against Crash Course's every 4 months. Quizzelo also leads on review sentiment (100% vs 76%). Crash Course's advantage is ratings volume (1.6K vs 4) and device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Crash Course sells 13 one-off in-app purchases and Quizzelo sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Quizzelo holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Crash Course has 1.6K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 76% of Crash Course's written reviews are positive against 100% of Quizzelo's.

UpkeepUpdate frequency

Crash Course ships an update every 4 months, Quizzelo every 5 days. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
Crash Course versus Quizzelo: the parameters behind the verdict, then further details
ParameterCrash CourseQuizzelo
PriceFreeFree
Rating4.8 (1.6K ratings)5.0 (4 ratings) — better
Positive reviews75.7% of reviews100.0% of reviews — better
Number of ratings1.6K — better4
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size146 MB41 MB
Age rating17+4+
DeveloperComplexly LLCDONGHOON JUNG

Customer experience

Crash Course

All ratings1,593 ratings
Positive95.5%
Neutral1.1%
Negative3.3%
Written reviews218 reviews
Positive75.7%
Neutral6.4%
Negative17.9%

Quizzelo

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Crash Course

Reported bugs

4 issues
  • Courses disappearing after updates
  • Search function not working
  • Trouble downloading content
  • App crashing during use

Requested features

6 requests
  • Add math and English courses
  • Expand course selection
  • Improve search functionality
  • Allow offline video viewing
  • Add progress tracking and favorites
Show 1 more
  • Implement landscape mode on tablets

Quizzelo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

Crash Course

One-time13
  • Contribute $1.99$1.99
  • Contribute Tier 1$1.99
  • Contribute $4.99$4.99
Show 10 more
  • Contribute Tier 2$4.99
  • Contribute Tier 3$9.99
  • Contribute Tier 4$14.99
  • Contribute Tier 5$19.99
  • Contribute Tier 6$24.99
  • Contribute Tier 7$29.99
  • Contribute Tier 8$39.99
  • Contribute Tier 9$49.99
  • Contribute Tier 10$59.99
  • Contribute Tier 14$99.99
2 purchases

Quizzelo

Subscriptions2
  • Quizzelo Plus7 Days trial$4.991 Month
  • Quizzelo Plus (Yearly)7 Days trial$23.991 Year

Questions

Is Crash Course free?
Crash Course is free to download, with in-app purchases available.
Is Quizzelo free?
Quizzelo is free to download, with in-app purchases available.
Which has better reviews, Crash Course or Quizzelo?
Quizzelo is rated higher. Crash Course averages 4.8 out of 5 from 1.6K ratings, while Quizzelo averages 5.0 from 4 ratings.
Do Crash Course or Quizzelo have ads?
Neither Crash Course nor Quizzelo shows ads.
Which is updated more often, Crash Course or Quizzelo?
Crash Course ships an update every 4 months, and Quizzelo every 5 days. Most recently, Crash Course was updated on October 20, 2026 and Quizzelo on October 19, 2026.

Other comparisons