Nature's Calendar is a Citizen Science project to explore the development of plants or the behavior of selected animals during the course of the year.

This field of research is called phenology. That's what you can do with this app: become a scientist and spot the ongoing development of nature during the whole year. Join up and start observing!

More infos at

What’s New

Version 2.9.3

Hotfix: Input-field for "another species" categories

App Privacy

The developer, SPOTTERON Gmbh, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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