Comparison

Crash Course vs Functional Groups

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

Functional Groups

Master organic chemistry functional groups through an engaging and interactive learning experience. Ideal for students in introductory or advanced courses, MCAT prep, and A-Level chemistry, this app covers dozens of essential groups with practice modes and progress tracking.

Highlights
  • 25+ basic and advanced functional groups
  • 300+ organic compounds
  • Multiple practice modes
  • Customizable study groups
  • Personalized review
  • Reference table and definitions
  • Progress tracking with achievements
Features
Read full description

Ready to ace organic chemistry? Learn the functional groups you need to know - all in an engaging and interactive format. The app is ideal for introductory or advanced organic chemistry classes, MCAT prep, A-Level chemistry, and more. You’ll quickly become familiar with alcohols, esters, amides, amines, and dozens of other important functional groups. The app features: • 25+ basic and advanced functional groups • 300+ organic compounds • Multiple practice modes • Customize which groups to study • Personalized review • Reference table and definitions • Achievements to track your progress Along the way, you’ll learn interesting facts about pharmaceuticals, biomolecules, dangerous compounds, unique molecular structures, and more. With the Functional Groups app, learning organic chemistry is easy, straightforward, and, dare we say… fun? Give it a try and let us know what you think!

Screenshots

Crash Course3 screens
Functional Groups4 screens

Verdict

The call

Crash Course and Functional Groups both sit at 4.8 stars, but that hides the real split: 100% of Functional Groups's written reviews are positive against 76% of Crash Course's. Crash Course's advantage is ratings volume (1.6K vs 21). On price, rating, update cadence and ads 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 Functional Groups sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Crash Course against 4.9 for Functional Groups. That said, the two scores are not equally well evidenced: Crash Course has 1.6K ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 76% of Crash Course's written reviews are positive against 100% of Functional Groups's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
Crash Course versus Functional Groups: the parameters behind the verdict, then further details
ParameterCrash CourseFunctional Groups
PriceFreeFree
Rating4.8 (1.6K ratings)4.9 (21 ratings) — better
Positive reviews75.7% of reviews100.0% of reviews — better
Number of ratings1.6K — better21
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size146 MB17 MB
Age rating17+4+
DeveloperComplexly LLCClarity Applications

Customer experience

Crash Course

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

Functional Groups

All ratings21 ratings
Positive95.2%
Neutral4.8%
Negative0.0%
Written reviews5 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

Functional Groups

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
1 purchases

Functional Groups

One-time1
  • Lifetime Access$9.99

Questions

Is Crash Course free?
Crash Course is free to download, with in-app purchases available.
Is Functional Groups free?
Functional Groups is free to download, with in-app purchases available.
Which has better reviews, Crash Course or Functional Groups?
Functional Groups is rated higher. Crash Course averages 4.8 out of 5 from 1.6K ratings, while Functional Groups averages 4.9 from 21 ratings.
Do Crash Course or Functional Groups have ads?
Neither Crash Course nor Functional Groups shows ads.
Which is updated more often, Crash Course or Functional Groups?
Crash Course ships an update every 4 months, and Functional Groups every 4 months. Most recently, Crash Course was updated on October 15, 2026 and Functional Groups on October 11, 2026.

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