Engaging GK Quiz App Development

Im a photo editor
I require a robust general knowledge quiz app designed for Android. Here are the features I need developed:

- Prizepool: This is to reward the top scorers in quizzes. Your experience creating and managing in-app reward systems will be crucial here.
- Leaderboard: A feature to showcase the top performers and fuel competitive spirit among the players.
- Gifts for Top Winners: Your knowledge in integrating in-app purchases or reward systems would be beneficial.
- 1vs1 Feature: Users should be able to challenge each other in real-time.
- Automatic Questions: There should be a system to deliver random questions on various subjects to users.
- MCQ Type Quiz: The quiz format should primarily include multiple-choice questions.
- 'Guess the Word' Game: This is an additional feature for users to gain points and move up the leaderboard.

If you have previous experience in creating similar engaging quiz apps with a successful user engagement strategy, then this is the project for you. Your ability to implement user retention strategy by creating addictive and rewarding quiz games will be highly appreciated.