Give a longer free period, have only just started using it today and have just cancelled it because I don't want to be charged £29.99
The new version has a free tier that you can use as log as you would like and on all of your devices. If you are not yet on the new version here is how to get on it:
Thanks for the suggestion, we can extend your trial if you need more time. Just email us and we can do that for you.