yes, there are many apps that are free for use or preparation on play store. you can check on your play store app for MP Patwari free preparation app.
About MP Patwari Recruitment:
To read all the important information (eligibility criteria, exam pattern, syllabus, prep material, exam tips, etc.): CLICK HERE
To make your exam prep effective and fruitful, go to the links below:
• Prepare well with Prep Guru App for smart phones: CLICK HERE
• Previous year questions: CLICK HERE
• For free Mock tests: CLICK HERE