What feedback evaluation tool would you recommend? [migrated]

We will soon be lauching a beta test with an app and would like to evaluate feedback that we receive from the beta test group by email or phone. Now the question for you:

Which tools are recommended for this? We would like to sort the answers according to features and other criteria and at the end get a dashboard that we can also present to our clients. Would be great if it were freeware too^^.