BioLog app icon BioLog
Field notebook for iPhone

Record what you find in the field.

Log wildlife, plant, and fungi sightings with a photo, notes, and location. See them on a map, and share them with the community when you choose to.

Download on the App Store Free. For ages 13 and up.
The BioLog app's New Sighting screen: a photo of a white water lily, with Wildflowers and Plants chosen as its category.

What BioLog does

Log a sighting

A photo, the species, your field notes, and where you were. Pick a photo from your library and BioLog fills in its date and place when the photo has them.

See it on a map

Your sightings and the community's public ones, on one map. Public locations are rounded to about a kilometer; connections see the exact spot.

Get an ID suggestion

Not sure what you found? Ask for an AI suggestion. BioLog asks your permission first, and you can turn it off.

You choose who sees it

Keep a sighting private or make it public. Connect with other naturalists to see one another's finds.

Identifications can be wrong

Never eat, handle, or harvest anything based on an app. Check with a qualified expert, follow the rules for protected land and species where you are, and keep sightings of sensitive species private.