A full version program for iPhone, by Joseph Sferrazza.

Countdown Days Until or Count Up From a Date

• Countdown from a date in seconds, minutes, hours, days, weeks, or months.
• You can set an unlimited number of events.
• Add reminders, set them to go off exactly when you choose, set the date and time of the event.
• Set your own unique icons for each event.
• Customize the font, color, and text of your countdown.
• Post your countdowns to social media, such as Facebook, Twitter, Instagram, or even email.
• Text your countdowns, including screenshots.
• Set a custom reminder for each event.

Countdown Days Until or Count Up From a Date is a free app, with in-app purchases, and it will sync between devices.