This software has being developed on Kivy Platform
CREDITS
Image
License: Apache License Version 2.0
Author(s): Google
images: cat, dog, horse, tiger
License: Creative Commons Attribution 4.0 International
Author(s): Twitter
images: bear, banana, fish, helicopter
License: Public domain
Author(s): Oleg Alexandrov
images: Apple_unbitten
License: Public domain
Author(s): Eggib
images: owl
Author(s): GDJ
images: cartoon-lion, lemon, pear
Author(s): Keistutis
images: comments icon
Author(s): Solar_Granulation
images: quill
Author(s): agomjo
Author(s): barretr
images: book
Author(s): binameusl
images: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Author(s): forest51690
images: checkyes
Author(s): frankes
images: zebra-coloured
Author(s): netalloy
images: slice-of-an-orange
Author(s): shokunin
images: information-blue
Author(s): sixsixfive
images: gears
Author(s): skotan
images: thumbs-up-smiley
Author(s): technoargia
images: twingo
Author(s): vectorsme
images: aircraft
License: Creative Commons Attribution 3.0 Unported
Author(s): VistaICO.com
images: Arrow
Sound
License: Public domain
Author(s): Akafinland
License: Creative Commons Attribution 3.0
Author(s): Mike Koenig
alphabet voices: A-Z Vocalized Sound
License: Creative Commons Attribution 3.0
Author(s): Tim Kahn, Amy Gedgaudas
alphabet voices: Pack: The Alphabet
Author(s): Tim Kahn, Amy Gedgaudas
alphabet words: Pack: alphabet words
Author(s): Tim Kahn, Amy Gedgaudas
number voices: countdown
Author(s): margo_heston
color voices: Pack: Lesson 1 Words
Author(s): margo_heston
number voices: Pack: Lesson 3 Words
Author(s): margo_heston
voice: plane
License: Creative Commons 表示 4.0 国際
Author(s): Music is VFR
sounds: 正解02不正解02