1. I like playing games on my smart phone.

2. I like chatting in Kakao Talk, which is a mobile messenger application used on smartphones.

3. I like sending and receiving messages on Kakao Talk.

4. I like talking wit my colse friends on Kakao Talk.

5. I like playing games on/in Kakao Talk.

(Would you correct any errors in the sentences? Thank you.)

4. close

5. on

Writeatcher is correct but can't understand the name

Here are the corrected sentences:

1. I like playing games on my smartphone.

2. I like chatting on KakaoTalk, which is a mobile messenger application used on smartphones.

3. I like sending and receiving messages on KakaoTalk.

4. I like talking with my close friends on KakaoTalk.

5. I like playing games on KakaoTalk.

Please note that "KakaoTalk" should be written as one word with a capital "T" in the middle. Also, "wit" should be replaced with "with."