Hi Rehan,
Depending on the types of questions, mapping capabilities and smart form features you want to use, will depend on whether Survey123 or Collector is more suited. You can also use a combination of both via app linking and custom URL schemes to launch one app from another, and pass attribute data between them.
In terms of your question "can I exhaust all the responses from a single device for a field survey?", what exactly do you mean by this? Please provide more details and explanation so we can respond accordingly.
Regards,
Phil.
