Sets Challenge vs Crash Course
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sets Challenge
Master fundamental set theory concepts through an engaging, multi-level game. Practice operations like intersection, union, and complement individually or with others. Ideal for students and educators, it can even be used for classroom presentations.
- Master set theory basics
- Practice intersection, union, complement
- Multi-level gameplay
- Play solo or in groups
- Classroom projector display option
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Sets Challenge is a multi-level game that will help you master the basic of sets theory while having fun and challenging yourself and your colleagues. Play this game to learn about and use the intersection, union, complement, power sets and other operators. You can play by yourself or in groups. Sets Challenge may also be displayed via a projector for a really engaging in-class game. A must play for students; a must use for teachers!
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.
- Thousands of educational videos
- High school and college level courses
- Humanities and sciences subjects
- Supplemental flashcards
- Quizzes for review
- Community of learners
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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!
Screenshots
Verdict
The clearest difference is rating: Crash Course at 4.8 against Sets Challenge's 3.0. Crash Course also leads on review sentiment (76% vs 33%) and ratings volume (1.6K vs 4). Sets Challenge's advantage is in-app purchases (none vs 13) and iOS requirement (9.0 vs 15.6). On price, update cadence, ads and device support 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
Both are free to download. Crash Course sells 13 one-off in-app purchases. Sets Challenge asks for nothing beyond the download.
Crash Course holds the better App Store score, 4.8 against 3.0. 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: 33% of Sets Challenge's written reviews are positive against 76% of Crash Course's.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.
| Parameter | Sets Challenge | Crash Course |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 4.8 (1.6K ratings) — better |
| Positive reviews | 33.3% of reviews | 75.7% of reviews — better |
| Number of ratings | 4 | 1.6K — better |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 146 MB |
| Age rating | 4+ | 17+ |
| Developer | Knowledge Platform Pte Ltd | Complexly LLC |
Customer experience
Sets Challenge
Crash Course
Bugs and requests
Sets Challenge
Not enough reviews yet to summarise bugs or 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
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- Implement landscape mode on tablets
In-app purchases
Sets Challenge
No in-app purchases
Crash Course
- Contribute $1.99$1.99
- Contribute Tier 1$1.99
- Contribute $4.99$4.99
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- 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
Questions
Is Sets Challenge free?
Is Crash Course free?
Which has better reviews, Sets Challenge or Crash Course?
Do Sets Challenge or Crash Course have ads?
Which is updated more often, Sets Challenge or Crash Course?
Other comparisons
