- If by online, Nicolas you're including mobile apps, Robinhood has a pretty darn sweet iOS app for buying public stocks without fees every time you buy/sell a security. I use it on the steady reg. I used to use Loyal3 online, and the advantage there was being able to buy fractional shares of the likes of Alphabet & Amazon, which each otherwise cost $900+ per share. But Loyal3 is changing a bit. Hope this helps Nicolas!