RSVPify - A powerful and awesomely customizable platform for selling tickets online for your event.
Pingg - Pingg is an online e-cards and invitation maker and invitation sending platform.
Evite - Send online invitations for all occasions by email or text message. Create invites for birthdays, baby showers, save the dates, or customize your own design.
Manvite - As the name of this service suggests, the users can avail easily and simply invite rather than online summons that are blessed with flowery fonts and dabbling champagne glasses.
JustRSVP.me - Online Invitations and response tracking for weddings, baby showers, birthdays, parties, and other...
Anyvite - Anyvite provides an efficient way to create invitations, with a range of tools necessary to organize and communicate with attendees throughout the event lifecycle