Fieldbook: Nature Identifier & Journal App

Remember every find.

AI identification, interactive maps, and offline journaling for every walk outside.

QR code linking to Fieldbook on the App Store

Free to download · Free trial available

Fieldbook is a nature journal app for iPhone that uses AI to identify plants, mushrooms, birds, insects, trees, stones, shells, fish, and more from your photos. Every discovery is saved with GPS location, date, and notes to build your personal field guide, and it works fully offline on trails and in remote areas.

Fieldbook app screen listing identified nature finds with photos, dates, and GPS locations

Most nature finds are forgotten within days. No record of where, what, or when. Fieldbook changes that.

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The nature journal app for foragers, hikers & curious minds

Identify plants, mushrooms, birds, insects, stones, shells & more with AI. Map your finds. Build a personal nature archive. Works offline.

AI-powered identification

Snap a photo. Know what you found.

Rich journal entries

Photos, notes, and voice memos in one entry.

Interactive maps

See every discovery on your personal map.

Challenges & trophies

Earn badges as you explore.

Nature archive

Your own searchable field guide.

Offline journaling

No signal? No problem.

See it in action

How it works

Three steps from discovery to archive

Snap a photo

Point your camera at any plant, mushroom, bird, insect, stone, shell, or animal. The AI identifies it in seconds.

Save the details

GPS, date, and weather are captured automatically. Add notes, photos, or voice memos.

Build your archive

Every find lands on your map. Filter, organize into collections, and access it all offline.

One app for identification, mapping, and journaling. Built for hikers, foragers, birdwatchers, and anyone who wants to remember what they find outdoors.

★★★★★

This is great

"I really like this app because it feels like a pokedex for geology. It's fun being able to run around and going what's this what's that in like a pokemon fashion."

★★★★★

Addictive!

"Downloaded Fieldbook just for plants...now I'm out here scanning squirrels, cats, mushrooms, random rocks on the street. It's lowkey addictive. Also love that you can save spots & make lil collections."

★★★★★

Great companion for nature walks

"Started using this on walks and hikes and ended up liking it more than I expected. The app feels simple in a good way, and logging discoveries is actually fun."

★★★★★

Very enjoyable

"If you see a beautiful flower or bird and get curious, just upload it and it gives you all the details instantly. Really amazing!"

★★★★★

Great for nature walks

"Really nice app for nature lovers. It's easy to save photos, notes, and locations. I mostly use it on walks in the nearby park. My 9 y/o son can even use it smoothly."

Explore Fieldbook

Built for every kind of nature explorer

Plant Identification App

Identify flowers, trees, herbs, and berries from photos and save each find to your journal.

Mushroom ID App

Document mushroom finds with photos, GPS location, habitat notes, and repeat sightings.

Nature Journal App

Build a personal nature archive with entries, photos, voice memos, and a discovery map.

Foraging Journal App

Track seasonal foraging spots, edible finds, and habitat notes across trips.

Offline Nature Journal

Journal in the field with no signal. Notes and photos sync when you reconnect.

Tree Identification App

Identify trees by leaf, bark, or branch and map every find across seasons.

Fish Identification App

Identify fish from photos and log every catch with GPS location and notes.

Insect ID App

Identify insects, spiders, and bugs from photos and map every sighting.

Bird ID App

Identify birds from photos and keep a journal of every sighting.

National Parks

Identify plants, animals, and birds on the trail. Works offline in the backcountry.

Guides

Oak Tree Leaf Identification

Identify oak species by leaf shape, lobe pattern, and texture with a 12-species reference table.

Tree Bark Identification

A visual guide to identifying trees by bark texture, color, and pattern year-round.

Poison Ivy Identification

Spot poison ivy in all three growth forms and every season, plus look-alike plants to know.

Indoor Plant Identification

Identify houseplants by leaf shape, texture, and growth habit with a practical species guide.

Baby Snake Identification

Tell venomous baby snakes from harmless ones by head shape, pupils, and scale patterns.

Lawn Mushroom Identification

Identify common yard mushrooms, learn which are harmless, and know when to be cautious.

Chicken of the Woods Identification

Tell chicken of the woods from its look-alikes by pores, color, and host tree, with a chart and the toxic jack-o'-lantern mix-up.

Chanterelle Mushroom Identification

Tell chanterelles from the toxic jack-o'-lantern and false chanterelle by false gills, white flesh, and where they grow.

Mushroom Scientific Names

Look up the Latin names of 30 common edible and toxic mushrooms, and learn how the names are built and why they change.

Crabapple Fruit Identification

Any Malus fruit 2 inches or less is a crabapple. Covers color, winter fruit, and hawthorn and rowan lookalikes.

Box Elder Tree Identification

The only maple with compound leaves, which is why it gets mistaken for ash and poison ivy. Four checks that settle it.

Turtle Identification

Tell 8 common turtles apart by shell, head stripes, and size, plus turtle vs tortoise and hatchling clues.

Butterfly Caterpillar Identification

Identify caterpillars by leg count, spines, and host plant, with a 14-species chart and the ones that sting.

Fall Mushroom Identification

Identify common autumn mushrooms by habitat, cap, and gills, with a chart and dangerous lookalikes.

Acorn Identification Chart

Identify oak species from their acorns by cap texture, nut shape, and size, with a 12-species chart.

Fall Leaf Identification Chart

Identify trees by their fall leaves, mapping red, orange, and yellow color to species by leaf shape.

Grand Teton National Park Animals

Moose, bison, elk, pronghorn, bears, and wolves, with the best places, seasons, and safety tips.

Grass Identification

Tell grass types apart by climate zone, blade shape, growth habit, and seed head.

Denali National Park Animals

Spot the Big Five: grizzly bears, moose, caribou, Dall sheep, and wolves, with viewing and safety tips.

Animal Tracks Identification

Read animal prints by toe count, size, and gait, with a species table and tips for snow and mud.

Cactus Identification

Identify any cactus by growth form, spines, and areoles, with a species reference table.

Succulent Plant Identification

Tell succulent types apart by leaf shape, texture, and growth habit, from Echeveria to Aloe.

House Moths Identification

Identify pantry moths, clothes moths, and the signs of an infestation in your home.

Pine Cone Identification

Identify pine species by their cones, with a 10-species reference chart and step-by-step guide.

Seashell Identification

Tell gastropods from bivalves and identify common beach shells by shape, ridges, and texture.

Chestnut Tree Identification

Identify chestnut trees by leaves, bark, burs, and catkins, with a species comparison table.

Chestnut vs Horse Chestnut

Tell the edible sweet chestnut from the toxic horse chestnut and buckeye by nut, husk, and leaf.

Gem Identification

Identify gemstones by color, hardness, luster, and crystal form with a color-based reference table.

Duck Identification

Tell duck species apart by plumage, bill shape, behavior, and body profile with a 12-species reference table.

Types of Ducks

The five main groups of ducks, from dabblers to sea ducks, with the key species in each and a reference table.

Poison Hemlock Identification

Spot poison hemlock by its purple-spotted stems, fern-like leaves, and white flowers, and know what to do.

Bird Egg Identification

Identify bird eggs by color, size, shape, and markings with a 10-species backyard reference.

Thistle Identification

Tell native thistles from invasive species by flower, spines, stem wings, and leaf features.

How to Start a Nature Journal

A beginner's guide to recording your outdoor discoveries, from gear to habit-building.

Best Plant Identification Apps

A comparison of the top plant and nature ID apps to help you pick the right tool.

Best Foraging Apps

Apps for plant identification, private maps, seasonal notes, and field journaling.

Best Tree Identification Apps

Eight tree ID apps compared for leaf, bark, and winter twig ID, free tiers, and offline use.

Best Mushroom Identification Apps

Seven mushroom ID apps compared for photo ID, habitat and GPS records, offline use, and free plans.

Feather Identification

Identify bird feathers by type, color, and pattern with a 12-species reference table.

Hawk Identification

Identify hawks by wing shape, tail, and flight style with a 10-species field reference.

How to Identify Scat

Identify wildlife droppings by shape, size, and contents with a 12-species reference table.

Geode Identification Chart

Five field tests to tell if a rock is a geode, plus a mineral chart for identifying what grew inside.

How to Identify Rocks

Identify rocks by color, hardness, and streak, and tell igneous, sedimentary, and metamorphic apart.

Sparrow Identification

Tell sparrows from finches by bill shape, plumage, and behavior with species profiles and a comparison table.

Plants of Yellowstone

Trees, wildflowers by season, endemic species, and the best trails for plant viewing in Yellowstone.

Animals in Zion

Mammals, birds, reptiles, and the best trails and times for spotting wildlife in Zion.

Yosemite Plants

Giant sequoias, wildflowers by season, five elevation zones, and the best trails for plant viewing.

Smoky Mountains Animals

Black bears, elk, salamanders, fireflies, and the best viewing spots in the Smokies.

Glacier National Park Animals

Grizzly bears, mountain goats, wolves, and the best trails for wildlife viewing.

Mt Rainier Wild Flowers

Peak season timing, best trails, and species to look for in the subalpine meadows.

Yellowstone Bears

Grizzlies and black bears, where to spot them, how to tell them apart, and trail safety tips.

Grand Canyon Wild Animals

Bighorn sheep, condors, rattlesnakes, and where to spot wildlife from rim to river.

Badlands National Park Animals

Bison, bighorn sheep, prairie dogs, and the best overlooks for viewing.

Butterfly Identification

Identify common North American butterflies by wing pattern, color, and flight style.

Lawn Weed Identification

Identify the 10 most common lawn weeds by leaf shape, growth habit, and season.

See all guides

Frequently asked questions

Everything you need to know

What is Fieldbook?

Fieldbook is a nature journal app for iPhone that lets you identify plants, mushrooms, animals, birds, insects, trees, stones, shells, and more using AI-powered photo recognition. Each find is saved as a journal entry with your photos, GPS location, date, and personal notes. Over time you build a searchable personal nature archive, your own field guide based on real encounters.

How does Fieldbook identify plants and animals?

Fieldbook uses AI image recognition to identify what you find from your photos. Take a photo of a plant, mushroom, bird, insect, stone, shell, tree, or animal, and Fieldbook analyzes it to suggest the species or type. The app covers 19 categories including berries, herbs, flowers, seaweed, reptiles, amphibians, fish, and more.

Does Fieldbook work offline?

Yes, for journaling. You can create entries, add photos, write notes, and record GPS coordinates without an internet connection, which makes it ideal for hiking trails, forests, and remote areas with no cell service. AI identification needs a connection: take the photo offline and the identification runs when you are back in range, attached to the original entry. Your entries sync automatically when you reconnect.

Is Fieldbook free?

Fieldbook is free to download. The free plan includes 5 AI identifications a month, up to 20 journal entries, and 3 collections. Fieldbook Premium adds 100 AI identifications a month and unlimited entries, collections, and photo storage. In the US, Premium costs $6.99 a month or $39.99 a year, and both plans start with a 3-day free trial. Prices vary by country, and you can cancel anytime.

Is Fieldbook available on Android?

Not yet. Fieldbook is an iPhone app and needs iOS 15.1 or later. There is no Android or web version.

Who is Fieldbook for?

Fieldbook is designed for hikers, foragers, birdwatchers, naturalists, and anyone curious about the natural world. Whether you're a casual walker who wants to know what flowers you pass, a mushroom forager tracking seasonal spots, or a parent exploring nature with your kids, Fieldbook helps you remember every find.

How does Fieldbook track my nature discoveries?

Every entry you create is automatically geotagged with GPS coordinates and placed on an interactive discovery map. You can filter the map by species type, date, or location to revisit past finds. You can also organize discoveries into custom collections by theme, trip, or habitat.

Start exploring

Free to download. Free trial included.