Or: why I use iNaturalist. I constantly see posts from my Facebook friends (and even in native plant communities) asking for recommendations on mobile apps to identify plants. Inevitably someone will pop up with PictureThis, or Google Lens, or even Seek. But here’s why I use iNaturalist.org’s mobile app. Free PictureThis is ad-supported if you don’t give them money. The premium version ranges in price from $30-$50/year, depending on plan.