Hello,
My name is Tim and I represent a company called NightsWhoCode. We are a team of professional senior developers with extensive experience in mobile apps development for iPhone/iPad, Android and Windows Phone platforms.
We certainly feel we are the best people for the job.
We can get in touch and provide you with a professional estimate for free, so you can know how much time the development process will take, and if the proposed terms suit you, we could start developing the app for you immediately.
One thing though needs to be said is that the app will cost more than $100. We can discuss that as well.
Hope to hear from you soon.
Best regards,
Tim