Hello Project Owner, Greetings of the day!
With 20 years of experience in Technology and 2+ years in React Native, I am pretty confident of providing you the required solution. react-native-sensors is a good library to implement accelerometer. Please can you share more details so that I can share the exact bid.
During the Project I will provide the status daily through mails and periodically through meetings. I will respond to your queries and messages ASAP.
We can break the App into Milestones. After completion of each milestone I can share Android APK and IOS ipa so that you can view, feel and test the App and share your feedback / review comments.
After successful release of the App, I will provide 15 days free warranty for any bug fixes and small changes.
Looking forward to hearing a positive response from you.
Regards,
Ashwani