Published by Andrey Solovyev

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Why should I report an Issue with Amino Acids: Quiz & Flashcards?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Andrey Solovyev to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About Amino Acids: Quiz & Flashcards

1. This app is the easiest and the most efficient way to learn the structures, codes, and properties of 20 standard amino acids (lysine, valine, threonine, and so on) and more than 20 related compounds (such as ornithine, taurine, cystine and others). * All 22 proteinogenic Amino Acids (20 common + Selenocysteine and Pyrrolysine). * Three- and One-letter codes (abbreviations): for example, cysteine = Cys C. * Essential Amino Acids - from Phenylalanine to Tryptophan. * Polar (aspartic and glutamic acids, arginine) and Hydrophobic Amino Acids (leucine, isoleucine). * Multiple-choice questions (with 4 or 6 answer options). * Time game (give as many answers as you can in 1 minute).

2. Amino acids are building blocks of proteins and peptides.

3. Thus, the knowledge of their structures and names is important not only for chemists, but also for biologists, pharmacists, and just for everyone studying science or medicine.

4. The app is translated into 8 languages, including English, German, Spanish and many others.

5. So you can learn the names of the amino acids in any of them.

Amino Acids Customer Insights

1. A flash card quiz would also be nice!i had much fun trying to beat the time limited game, i used the app actively for like 3 days for the 20 common amino acids and now i memorized them perfectly i genuinely recommend this app, it helped a lot :)just had to jump in with the multiple choice questions.

2. Awesome!!Very nice app! Would be cool if you could also implement a quiz for the pKa values and side chain types for the proteinogenic amino acids.

3. 5/5.Love it! I would be amazing if you could add an option with other informations about each AAAwesome game to learn about amino acids.

4. Also the number of spaces given tells you how many letters is in the name of the molecule, just make it a single line and dont tell us how many letters it hasI totally love these apps.

5. Jee aspirants must try thisVery good app for learning amino acids with structures .

6. within 40 minutes I was able to name all 20 common amino acids within 60 seconds.

7. Helped me a ton, but to improve I think I'd make it so that you need to type the name instead of select the letters, because that made it a little too easy.

8. Overall very good, lots of varied types of quizzes which helped.PROS: it's amazingly effective.

9. Also a way to make you draw the named amino acid, so you remember how to do that too.

10. The timed games keep me engaged, always trying to beat my best score.

11. I wish it were just a simple QWERTY keyboard and not a collection of letters.

Steps to Troubleshoot & Fix Amino Acids Issues

1. Fix Amino Acids Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Amino Acids: Restarting the app will resolve most errors.
  2. Update the Amino Acids App. Here is how:
    1. On Android goto PlayStore » Search for "Amino Acids" » Open Amino Acids: Quiz & Flashcards » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Amino Acids » click "UPDATE".
  3. Clear Amino Acids: Quiz & Flashcards app cache: Clearing cached data will force your app to retrieve the latest data directly from Amino Acids servers.
    1. On Android, goto Settings » Apps » Select "Amino Acids: Quiz & Flashcards" » click Storage » click "Clear Cache".
  4. Check Amino Acids app permissions. If any of these permissions required to use your device's features are disenabled, Amino Acids might not work.
  5. Uninstall and reinstall Amino Acids. If nothing else has worked, completely uninstall Amino Acids then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Amino Acids not working


2. Fix Amino Acids Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Amino Acids be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Amino Acids not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Amino Acids may not be able to connect to the Internet when running in the background.

Reported Issues