Lightbulb My New Word Game - Try it out - suggest to improve ways to increase my customer base

Dear Team,
I am a newbie.Kindly help me in improving .Its a small word game.. PFA my game's link.

Its available in play store.

Cow N Bull
Author: Aswin Kumar R

play.google.com/store/apps/details?id=com.ash.android.cowsbulls

Thank you,
Ash