1. Flowerium (iPhone, iPad)
Flowerium is a lovely app that lets you grow and preserve digital flowers. When you touch the screen, a seed falls to the ground and sprouts a bud that grows into a flower before withering and dying. It has a great style, and there's something nice about the fluidity of the experience.
2. PostSecret (iPhone)
3. Cartolina (iPhone)
Add an extra layer of care to the messages you send, whether with a bird or a reindeer. It's a nice way to make texts a bit more special.