To understand the value of the 2021 features, you must look at the market context.
In 2021, Matterport raised a massive funding round and locked down their ecosystem, making it impossible to export raw HTML. Many professionals felt trapped. 3DVista Virtual Tour Pro 2021 became the escape hatch and the superior alternative for those who wanted:
For multi-story buildings, you could create a “floor switcher” widget and link stairways/elevators. The 2021 version added improved automatic navigation mesh generation for the mini-map, so the user’s dot wouldn’t walk through walls.
The software records where users look and click. Over time, you can see a "heatmap" overlay on your 360 images. If users are staring at a blank wall, you know to put a poster there. If they are ignoring your "Buy Now" button, you know to move it to the ceiling.
The "White Label" capability in 2021 is unmatched.