Animation Tracker
This is a really simple but fast tracker for animations
It creates a CV-Curve and scalable boxes for each frame. When you have a key on a frame it creates a red box, so you can easily see all your keyframes.
You can track animations relative to a camera. When that camera is moving (for example following a motorbike) you can track the animation of the rider relative to the camera movement.
It can track multiple animations parallel
If you have a time range in the time-slider selected, it will automatically track only that range.