3 ms·If it's just an email newsletter tool, why do they have a mobile app?by gnicholas 4y agoIf it's just an email newsletter tool, why do they have a mobile app?orra 4y agoQuite. Also, from the horse's mouth: > What is a Substack? Substack helps anyone set up a blog and email newsletter.rchaud 4y agoFor marketing and surveillance purposes, just like every other 'tech' company.