Company Jonathan Kerr created these great apps:
Binaural by Sonalkiss, Solfeggio by Sonalkiss, Learn Hebrew - Alphabet, Learn Hebrew - Gematria 1, Learn Hebrew - Gematria 2, Learn Hebrew - Gematria 3, Learn Hebrew - Gematria 4, Learn Hebrew - Gematria 5, Learn Hebrew - Gematria 6, Learn Hebrew - Gematria 7, Learn Hebrew - Gematria 8, and others..
