Does you guys have face a problem that you have launch the product. And users is non-stop questioning is it safe to use? Is it safe to my data?
How can you solve that problem and build trust for users?
If you have to collect or store data because the space you are in, charge a meaningful amount of money so it is clear that charging users money is the way you plan to make money. And clear that selling data is not the most likely way you will make money.
Complaints about data are complaints about price.
If you are getting complaints about data, then you are better off charging money because money is much better than data. You can always buy data. You can't always sell it.
2. Collect the minimum possible data, explain what/why you collect, if possible explain how it's stored
3. Open source is a good way to make huge leaps forward with trust
(In general I agree with others, if you can give a bit more concrete examples of what's going on, maybe we can provide more direct feedback.)