Company Guillaume Berrido created these great apps:
Latin 1, Latin 2, Advanced French C1/C2, Advanced Spanish C1/2, Latin+Greek Compared, Advanced Italian C1/C2, Genius Cards Russian, Genius Cards Ukrainian, Advanced German C1/C2, Latinum B, Genius Cards: Portuguese, Genius Cards Anglais, Allemand, Vocabulaire Espagnol, Vocabulaire Italien, Vocabulaire Portugais, Vocabulaire Russe, Vocabulaire Ukrainien, Wheelock's Latin Vocabulary, Lingua Latina 1 Flash Cards, Cambridge Latin Course 1, AS Latin, Latin Grammar Cards, Terminologie Medizin, Athenaze 1 Vocabulary, Athenaze 2 Vocabulary, GCSE Latin A402 Vocabulary, Barron's GRE 333 Words, Barron's GRE 800, TOEFL Intermediate 400 Words, SAT Comprehensive, Advanced English C1/C2, Oxford Latin 1 Vocabulary, Oxford Latin 2 Vocabulary, IELTS Advanced Vocabulary, Barron's GRE 1100 Words, and others..