microChange - Snapchat-Venmo hybrid for donating.
Felt for iPhone - Handwritten cards for the modern world
DonatePal - The new way to donate to charities
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
Kotn: Black Friday Project - Shop online this weekend and help fund a school in Egypt
Token - One ring to replace your keys cards and passwords