Comparison

Functional Groups vs Amino Acids Trainer

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

Head to head
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!

About

Amino Acids Trainer

Master the 20 proteinogenic amino acids with interactive quizzes covering structures, codes, properties, and formulas. Practice with various modes, difficulty levels, and timed exams. Track your progress and review mistakes to build confidence.

Highlights
  • Interactive amino acid training
  • Structure, code, and property quizzes
  • Multiple quiz modes
  • Adjustable difficulty levels
  • Timed exam mode
  • Detailed statistics and progress tracking
  • Review and bookmarking features
Features
Read full description

Learn the 20 canonical proteinogenic amino acids through interactive and focused training. Study their structures, one-letter and three-letter codes, properties, side chains, molecular formulas and pKa values. Practice with multiple quiz modes: • Structure to name • Name to structure • One-letter code • Three-letter code • Properties and side chains • Molecular formulas and pKa values • Mixed training Choose between Easy, Medium and Hard difficulty. You can also control how carbon atoms are displayed in each chemical structure. Exam Mode gives you mixed questions within a 5, 10 or 15 minute time limit. Detailed statistics show your accuracy, progress, average response time, best streak and exam readiness. Incorrect answers are saved automatically. Review Mode lets you practice your mistakes again, while bookmarks help you save important amino acids for later. Ideal for school, university, biochemistry, medicine, pharmacy and anyone who wants to confidently recognize amino acids. Premium unlocks all advanced quiz modes and difficulty levels.

Screenshots

Functional Groups4 screens
Amino Acids Trainer4 screens

Verdict

The call

The clearest difference is update cadence: Amino Acids Trainer at monthly against Functional Groups's every 4 months. Functional Groups's advantage is ratings volume (21 vs 1) and iOS requirement (15.0 vs 17.6). 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. Functional Groups sells 1 one-off in-app purchase and Amino Acids Trainer 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 — 4.9 for Functional Groups against 5.0 for Amino Acids Trainer. That said, the two scores are not equally well evidenced: Functional Groups has 21 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Functional Groups ships an update every 4 months, Amino Acids Trainer monthly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Functional Groups versus Amino Acids Trainer: the parameters behind the verdict, then further details
ParameterFunctional GroupsAmino Acids Trainer
PriceFreeFree
Rating4.9 (21 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings21 — better1
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size17 MB11 MB
Age rating4+4+
DeveloperClarity ApplicationsAlexander Mehanic

Customer experience

Functional Groups

All ratings21 ratings
Positive95.2%
Neutral4.8%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Amino Acids Trainer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Functional Groups

One-time1
  • Lifetime Access$9.99
1 purchases

Amino Acids Trainer

One-time1
  • Premium$3.99

Questions

Is Functional Groups free?
Functional Groups is free to download, with in-app purchases available.
Is Amino Acids Trainer free?
Amino Acids Trainer is free to download, with in-app purchases available.
Which has better reviews, Functional Groups or Amino Acids Trainer?
Amino Acids Trainer is rated higher. Functional Groups averages 4.9 out of 5 from 21 ratings, while Amino Acids Trainer averages 5.0 from 1 ratings.
Do Functional Groups or Amino Acids Trainer have ads?
Neither Functional Groups nor Amino Acids Trainer shows ads.
Which is updated more often, Functional Groups or Amino Acids Trainer?
Functional Groups ships an update every 4 months, and Amino Acids Trainer monthly. Most recently, Functional Groups was updated on October 11, 2026 and Amino Acids Trainer on October 9, 2026.

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