for iphone user, you need to have 五色學倉頡ONLINE app in your phone
for android user, you need to have WhatSticker Android app in your phone
WhatSticker Android app:
https://play.google.com/store/apps/details?id=online.wsticker
for iphone user, you need to have 五色學倉頡ONLINE app in your phone
for android user, you need to have WhatSticker Android app in your phone
WhatSticker Android app:
https://play.google.com/store/apps/details?id=online.wsticker