Implementing multiplayer for mobile game

Job ID: 34864969

Budget: $30 – $250 USD

I have a game here. https://play.google.com/store/apps/details?id=com.gainpips.getmoreeggs

I want to have multiplayer feature (1 vs 1 or 2 vs 2). Where they can play turn by turn.
The current implementation of the game is in unity.

Please describe your approach (which framework you plan to use, is it need host server or peer 2 peer) in the bid.