Learn names and formulas of all important inorganic acids, polyatomic ions and their salts. An app is suitable for everyone: from high school students to chemistry professors.
Take a quiz or use the table as a reference.

* 70+ inorganic acids: from Sulfuric H2SO4 to Hydrazoic HN3.
* 50+ anions and cations: from Chloride Cl(-) to Hydrazinium N2H5(+).
* 50+ salts: from Potassium nitrate KNO3 to Ammonium hexachloroplatinate (NH4)2PtCl6.

Choose the game mode:
* Spelling quizzes.
* Multiple-choice questions (with 4 or 6 answer options).
* Time game (give as many answers as you can in 1 minute).
A learning mode:
* Tables.

The app is translated into 9 languages, including English, German, French, and many others. So you can learn the names of the acids and ions in any of them.

This app is ideal for those studying inorganic chemistry.

What's New

Version 2.0

- Now all questions and game modes are free and available immediately.
- Many new features (tables, stars) and improvements in game mechanics.
- Translation into Danish language.

Ratings and Reviews

4.3 out of 5

21 Ratings

21 Ratings

It doesn't contain viruses


I've had this app for a couple of months and nothing. No issues, my only complain is that once in a while it'll stop what you're doing and give you an ad, but then again it's FREE!
No issues, not crashes, no worries.
It's great review if you're going to take chemistry 1

Best I've found on salts, acids, and ions

Flashcardlet review

Great app



Contains viruses. Destroyed my old iphone.
Dont get this... Also constantly crashes


Andrey Solovyev
15.3 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Danish, French, German, Italian, Portuguese, Russian, Spanish, Swedish
Age Rating
Rated 4+
© 2014 Andrey Solovyev
In-App Purchases
  1. Remove Ads $0.99
  2. Unlimited Hints $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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