If you have access to an audience already (e.g. your users, or your clients' customers etc.), then you can send a test directly to them (instead of using Loops' paid panels).
To send tests to your own audiences, you don't need credits - it's free!
How to send tests to your audiences
First, create your test (see here for a guide)
When you have added all of your questions, click 'Select audience'
Click 'Bring your own' to select your own audience
Apply the parameters you want (e.g. how many participants, anonymous or not, language, etc.)
Click 'Review & set live' in the bottom right of the tab, review your parameters and then click 'Confirm & set live' and generate a shareable link
Send the link to your networks via social channels, email, or team messenger software