Show the previous interval when reviewing a card

Seeing the previous interval or review date during the review would be very useful. That would help in selecting the answer, and it would also be just plain interesting.
It could be shown in the small bar that shows how many reviews are still pending. (or somewhere else)

The “card info during review” add-on can show you the previous interval.

Thanks for the reply! The add-on is good.
However, I actually use AnkiDroid, and to my understanding the add-ons work on the PC version only.
The reason I posted the suggestion here is that I found a similar request in AnkiDroid github, and the answer was that they just follow what you guys do here and port the code to Android.