Andrey Solovyev
Learn English Irregular Verbs
FreeEnglish irregular verbs forms: infinitive, past simple tense and past participle
AndroidGreek Letters and Alphabet
FreeIt is a perfect app to learn 24 Greek letters and alphabet from Alpha to Omega.
Android50 US States: Capitals & Flags
FreeLearn all 50 US states: capitals, flags and maps. Several different quiz modes.
AndroidAfrican Countries: Africa Quiz
FreeLearn all 54 independent African countries: flags, capitals, and maps quizzes.
AndroidFunctional Groups in Organic Chemistry - Quiz
PaidLearn important functional groups and classes of compounds in organic chemistry.
iOSIrregular Verbs of English and their Conjugation - An Infinitive, a Past Simple Tense, a Past Participle, and the Definition
FreeBegin - began - begun...The app contains all important English irregular verbs (more than 200 verbs overall). Please choose the learning method...
iOS
Congratulations Generation - Greetings and Best Wishes for Christmas, New Year, Birthday, Valentine Day and More Holidays
FreeHave troubles with composing greeting messages to your friends? Tired of pre-written texts? Get inspired by this app!More than 1,000,000 possible...
iOS
English Proverbs Missing Words
FreeFinish 200 English proverbs or idioms by spelling the missing words.
AndroidAll Maps of the World - Quiz
FreeGuess all 197 countries of all continents by their outline maps! 3 quiz modes.
Android
Carboxylic acid - Ester and Salt Names - Organic Chemistry Quiz
PaidCarboxylic acids and esters are one of the most important classes of organic compounds. They are everywhere:* in food (citric acid; vinegar = a...
iOS
Steroids - Chemical Formulas
FreeChemical formulas of Steroidal hormones, lipids from testosterone to cholesterol
AndroidFamous Scientists - Smart Quiz
FreeMore than 60 scientists: Guess the chemist, physicist and astronomer!
AndroidInorganic Acids, Ions & Salts
FreeLearn names and formulas of all important inorganic acids, their salts and ions.
Android
Amino Acids Structure - Essential Acid from Phenylalanine to Tryptophan
PaidDo you know the chemical formula of glycine?Amino acids are building blocks of proteins and peptides. Thus, the knowledge of their structures and...
iOS
Provinces of Turkey Quiz - Locations on the Turkish Map and License Plate Codes - From Istanbul to Erzurum
FreeLearn all 81 provinces of Turkey: from Istanbul and Ankara to Erzurum and Van.There are 4 different quiz modes about:* names of all Turkish...
iOSGerman States: Germany Quiz
FreeLearn all 16 States of Germany: flags, capitals, maps and coats of arms.
AndroidChemical Substances Chem Quiz
FreeLearn 200 chemical substances studied in introductory & advanced chemistry class
Android
Flags of All Countries of the World: Guess-Quiz
FreeFlags of all 197 independent countries of the world: several quiz games to play.
iOSChemical Elements Names Quiz
FreeYou'll learn the names and symbols of all 118 chemical elements with this app.
AndroidInorganic Acids, Polyatomic Ions and Potassium Nitrate Salt - Inorganic Chemistry Quiz
PaidLearn names and formulas of all important inorganic acids, polyatomic ions and their salts. An app is suitable for everyone: from high school...
iOS50 US States Map, Capitals & Flags - American Quiz
FreeLearn all 50 US states: capitals, flags and maps.
iOS
100 Most Common English Nouns
FreeLearn 100 most frequently used English nouns: definition and Spanish translation
Android
Canadian Provinces and Territories - The Flag, Capitals and Map of Canada - From Newfoundland and Labrador to British Columbia
FreeThis app tests your knowledge and helps you learn the names, the maps, the capitals, and the flags of all 10 Canadian provinces and 3...
iOSMaps of All Countries in the World: Guess Map Quiz
FreeGuess all 197 independent countries of all continents by their outline maps: from Europe and Asia to Africa and America.
iOS
