Hi, I did similar app before and I have my own POS printer, I can send you a demo for free.
Is it correct that you Rongta RPP300 has bluetooth?
Is it correct that you need app for Android phones?
Is it correct that you (and your employees ) will use it?
1) save the submissions into a spreadsheet which can save offline
You will be able to use app while offline without any limitation.
2) but can sync or autosync when online -edit the options on the form
What do you mean? Do you need to change select lists? Yes, it is possible. Just give me more information what do you need.
3) send only specific parts of the form submission to the printer
For example we can print only filled fields (or selected). Or any other option. Just explain it.
4) adding logo to the prin
- Please send me your logo
5) signature capture
What do you mean? The customer should sign it? Yes, this is possible.
Low price just because I need to earn rating.
5* rating wanted.
Waiting for your answer,
Thank you,
Denis