I want to test this service first. Do you have a free plan?

Yes, we have the free plan on G-Lock Analytics. The free plan is limited to 3 email campaigns and 1,000 opens/clicks.

This means that you cannot maintain more than 3 campaigns in your account at the same time and your list must not exceed 1,000 subscribers.

The system will stop collecting statistics after the open count reaches 1,000.

You can signup for the free plan here.