Alternativa WhenIsGoodu za PHP s komercijalnom licencom

• PHP
  Sve platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) PHP jQuery Windows Mobile Slack Microsoft Office Outlook Chrome Adobe Flash Player Google Calendar Google Apps Microsoft Exchange Server Apple Calendar
• Komercijalna licenca
  Bilo koja licenca Besplatna licenca Licenca otvorenog koda Komercijalna licenca