I'm no VC, but I have made a few investments in companies, independently. I'll give you my immediate impressions.
It's a very cute project! Nice animations.
How does it work? My understanding is that you have a pricing table somewhere you say a banana is worth $1, a taco is worth $10, etc. When you press the button, it converts a dollar amount into some number of those goods.
Comparing costs to real-world things is a commonly-used strategy, e.g. "For less than the cost of a coffee a day, you could ____!", so that's interesting.
It seems like overkill for an API; seems like you could just build it into your marketing copy (and not rely on just emoji, which render inconsistently).
'My assumption is that conversion will definitely be higher by using visual representation of price tags. Especially against "spatial learners".'
Sure, but that's easy for anybody to test, in-house.
It doesn't seem like enough value-add to use as a stand-alone business; if somebody else were to want to use it, they'd have to not just pay the service, but also the cost of maintaining a sales relationship, contract, etc.