Dear sir.
I've just read your job posting line by line, and fully understood what you want now.
I can start your project immediately and develop high quality mobile app in a short timeline.
I have very confident in mobile app development and ready to help you.
I have developed more than 30 apps during last 3 years of mobile app development and it includes iOS, Android apps.
I am very familiar with the ... and so on.
Especially, I can develop ... that is necessary for the app.
Please check the following links attached that are my past works.
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I can work full time for your project and I work by your clock.
If I work for your project, then I will develop my next successful game for you.
I will look forward your response and even in case you cannot choose me, please message me with the reason kindly. I can accept your all offers.
Best Regards,
Kevin simon