Always start with the official Alight Motion App Store download. They often offer a trial period so you can test pro features like keyframe animation and blending modes for free.
If you only need to remove the watermark for one project, you can sometimes purchase single "tickets" instead of a full subscription. Alight Motion IOS MOD HACK (Free Subscription)
Modded apps often lack official updates, leading to frequent crashes, especially on newer versions like iOS 17 or 18. Always start with the official Alight Motion App