Google Calendar - Spend less time managing your day & more time enjoying it
ShoutOUT - All in one business texting tool to send personalized alerts, promotions, reminders, short links and marketing campaigns, for any SMEs (hotels, restaurants, education, non profits, Woocommerce, banks, healthcare, agencies, supermarkets, weddings)
CalendarZ - CalendarZ is a simple yet high-level calendar application, introduced lots of advanced functions and features.
Trumpia - SMS Marketing and Marketing Automation software for Mass SMS, internal communications & emergency alerts. #1 Text Messaging Service used by Fortune 500s.
CalenGoo - Features | 1.0.175 for Android™
Clickatell - Simple, reliable mobile messaging cloud.