Hi, I'm Appcelerator Titanium Developer. I can do this work.
My offer:
1. We may use Appcelerator Titanium for app. Cost include Android and iOS version.
ps. I propose added simple animation to UI for beautiful interface. Also, if you not have graphic design, I can help do material theme for you.
2. We may build native app. iOS or Android. I can build both for 200 € or one for 100€
ps. 5 days the maximum term