KIK chat on IOS

iOS and iPadOS

Hi guys!
I have download Kik for both android and IOS . However, the issue is when I mod this app and run it in both two devices: samsung and apple, it gives me different experience in typing messengers and sending pictures.How can I fix this problem?
p/s: for android, I download two versions from Google play and from here
for IOS :
Can you help me give the name of this problem? I appreciate any idea or suggestion. Thank you in advance.