No. The free plan requires no credit card. You only need to provide payment details when upgrading to PRO.
Yes, absolutely. You can cancel at any time from your profile. You'll keep PRO access until the end of your billing period.
DDD Maps supports .gpx files - the standard format exported by Strava, Garmin, Komoot, AllTrails, Wikiloc, and most outdoor tracking apps. If you do not have a GPX file, you can search for a mapped hike instead.
You can set up and preview animations on mobile or desktop. Desktop is usually best for uploading GPX files and checking exports, while mobile is useful for quick edits and portrait previews.
Yes. PRO includes a 7-day trial before the paid subscription starts.