According to our aim which is providing a accessible, efficient, authentic, informative and qualitative historical database for everyone, ‘Rainbow Calendar’ was founded in 2006 (1387 AH). The Rainbow Calendar encompasses Iran’s official calendar, as well as major international events, every day of every year you are aware of the incidents and events related to various fields will make.

Here is list of features in Rainbow Calendar app:
- Main Iranian and International events
- Categories for events
- Hide and show a category
- Reminders for categories
- See all events in a list
- Events would update with central database
- Two widgets for desktop
- Record personal events
- Set reminders for personal events
- Connect to Facebook and Google+ to import personal events