"Ya."

Translation: Yes.

[Keith_APP]

Is Iya same as Ya?

[MasyhurHil]

Ya.

[Hafidh.Ihromi]

Ya. We like shortening words. So yes, ya is just a short version of iya. Both are correct

[Ron775337]

Is "OK" an acceptable translation also?

[TheZahraJa]

Not that much. Oke