You can try Charm free for 5 days, during which you can process up to 20,000 words. After 5 days or 20,000 words processed (whichever comes first) your billing period will begin for the plan you selected.
Charm will prompt you for confirmation if you try to process more than 20,000 words before your billing period begins.
You can cancel anytime at no charge before your billing period begins.
What's the refund policy?
If you're not completely satisfied with Charm, I'm happy to refund you for the unused word balance of your current billing period, no questions asked.