Best apps like R2R: Functional Groups

10+ similar apps compared and reviewed

4.5 avg rating
10 free apps
Updated October 2026

Looking for something like R2R? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to R2R

4.7(162 ratings)
FreeIn-App Purchases
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Access key functional group reactions and their mechanisms in organic chemistry. Quickly find links between reactants and products, including synthesis and protection reactions. Some advanced features and reaction lists require an additional purchase.

SynStrategy#2

SynStrategy by Willi M. Amberg

Reactions by Functional Group
Strong Contender
📚 Education
5.0(9 ratings)
Free
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This app categorizes organic reactions by the functional groups they form, aiding chemists in synthetic analysis. It offers over 500 transformations and 400 synthesis examples, with detailed subdivisions for clarity.

Amino Acid Quiz#3

Amino Acid Quiz by Atlas Educational Software

Learn the Amino Acids
Worth Considering
📚 Education
4.9😊(949 ratings)
FreeAdsIn-App Purchases
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Test and enhance your understanding of the 20 standard amino acids with customizable quizzes. Explore topics like names, structures, codes, codons, and side chain classes. Study all topics for free, with an optional in-app purchase to remove ads.

What We Love

  • 🚀 Efficient for learning amino acids
  • 👍 Clean and user-friendly interface
  • 🚀 Helps memorize amino acids quickly
  • 👍 Great for MCAT/biochemistry prep
  • 👍 Customizable quiz options

Room to Improve

  • 🐛 Incorrect classification of cysteine as non-polar
  • 🔍 Missing information on amino acid properties (e.g., pKa, hydrophobicity)

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