It's also a card with no annual fee, so there is no downside of owning it even if you don't use it. (upgradedpoints.com)
There is a downside of course — this is a closed app, which means only the material gathered using the app can be read using it. (goodereader.com)
And yet there are downsides for startups trying to move fast in a heavily regulated industry like agriculture, especially when it comes to food production. (inc.com)