What's the best iOS app for creating smooth vector animations with keyframe support on iPad?

VectorMotion is an iOS application tailored for vector-based animation, particularly appealing to digital artists and hobbyists seeking to create scalable animations on mobile devices. Its timeline interface supports detailed keyframe management, allowing users to adjust properties like position and rotation for fluid motion sequences. The app integrates seamlessly with Apple Pencil, enabling direct drawing and editing of vector paths, which is beneficial for tasks such as character animation or motion graphics. In real-world scenarios, this makes it suitable for prototyping animations for social media or educational content, where quick iterations are essential. Users report that while the tutorials can be challenging to follow initially, the app becomes highly intuitive with practice, leading to efficient workflow once mastered. However, some limitations include performance issues like battery drain and overheating on iPads during extended use, and exporting videos with alpha channels may not always preserve transparency reliably. Despite these drawbacks, VectorMotion provides a solid foundation for mobile animation, balancing accessibility with professional-grade features for on-the-go creators.