Hi,
I have experience of working with iBeacons (and other Bluetooth LE devices) which will be useful for your app.
I develop apps for iPhone/iPod Touch/iPad and Mac, using Xcode and Swift.
You can see some examples of my work, and client reviews of my completed projects, on my Freelancer profile page.
You have not mentioned any functionality beyond a simple notification of beacon proximity, so my bid is for exactly what you have mentioned in the project specification. I would be happy to discuss further functionality - of course, that would normally incur an extra charge.
What kind of beacon are you using?
Is the app for iPad only, or iPhone as well?
If you'd like to reply to this message, we can discuss things further, before you make your decision on awarding the project.
Best Regards,
- Rob Dixon.