Twilio - Brings voice and messaging to your web and mobile applications.
TradingView - The best charting tool for crypto and stocks
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
eToro - The social investment network that connects traders from around the globe and enables them to share...
BulkSMS - SMS messaging service provider offering two-way SMS communication services.
Robinhood - Free stock trading service.