The interface is pretty basic so they are the templates, it way too far to be compared to canva or other similar apps.
Be aware the "download all size" feature is only available on a premium monthly paid plan, is not on the appsumo deal as mentioned on the page description.
It has big potential, it really can save a lot of time showing in few clicks all the possibilities on different image size but the templates looks very old ('90 / 2000 graphic style), but at this stage the time you save you use to make the template more "actual".
I already have Pixelied which is very good and with very nice templates, I will refund this deal.