Kudos app lets you publish a gratitude note private to a person or publicly in your company's feed. It organizes the notes in visual ways, such as a heart-shaped view, so everyone can have an idea about how much gratitude was expressed in the company.
For building the habit of thanking people:
- It reminds everyone to express gratitude daily with friendly notifications in the morning,
- A feature called Coworker of the Day suggests a coworker to be the target for your gratitude that day