Mobile Applications

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PDX Trees on the App Store on iTunes

Elsewise LLC


** Please note: This app features data for Portland, Oregon only. Even if you aren't in Portland, you're invited to take a look at our Heritage Trees, and come visit them (and us) sometime! **

Each year, the Portland City Council designates trees for Heritage Tree status, based on their age, size, type, historical association and/or horticultural value. There are currently 281 such trees, spread throughout the city: from Forest Park in the West Hills, to the Lan Su Chinese Garden in Old Town/Chinatown, out to Happy Valley and Powell Butte Nature Park in the east; from St. Johns and North Portland, to Sellwood and Reed College in the south. That's a lot of territory to cover.

PDX Trees makes it easy to find and and enjoy them. With this app, you can:

* Search for nearby trees and see them on a map.
* Tap a pin to see the name and view details for that particular tree.
* Take and upload a photo of a Heritage Tree you're visiting.
* View photos of the tree taken by other tree enthusiasts.
* Email a friend about the tree (includes tree name and location where available)
* Read more about a type of tree from Wikipedia, without leaving the app.

Planning-your-visit mode: Not in Portland? No problem. If the app discovers you are out of the area, or can't determine your location accurately, it will start you off with a view of trees in downtown Portland. You can move the map around from there, and find trees to see on your next visit. Once you arrive in Portland, your location will appear on the map along with the trees, making it easier to get oriented.

Offline mode: All the tree data is stored on the phone, so you can still search for trees in an area and view the basic information about them, even if you don't have an internet connection. This means the app works on iPod Touch devices, even if you don't have a Wi-Fi connection while you're wandering through Portland's neighborhoods. (A few catches: You can't access photos or Wikipedia pages in offline mode, and you need to visit the region first with a network connection to get the underlying map imagery.)

The PDX Trees app is part of a larger project, with two goals:

1. To make it easier for citizens and visitors alike to find and enjoy these trees.
2. To build a set of images as a community that shows how Portland’s Heritage Trees change over the seasons and over the years, and to see these trees through each others’ eyes — and cameras.

Enjoy! And please let us know what you think!

Baum Id Germany on the App Store on iTunes

Mullen & Pohland GbR


BaumId is a nature guide to all native and naturalised trees of Germany.

BaumId is a field guide to trees found growing in open countryside and natural woodland of Germany. The guide has been created by professional published ecologists, accept no cheap imitations.

Our app not only has more trees than any other app, it also has the right trees. BaumId contains meticulously researched written content and high quality original photography.

Tree detail can be accessed from an easy to use list, or the identification forms can be used. For identification the app asks a short series of questions about the tree. Based on the answers, it calculates and displays a short list of the most likely trees it will be. The user is given an estimated percentage likelihood that the tree is correct. Clicking on a tree in the list displays details about the tree. Trees can also be compared.

You can send us a photo and comment about particular trees that are of interest to you directly from the app. These can then be viewed on a map via the app.

The app does not need an internet connection, all content is downloaded when the app is purchased. Although there are over 400 photographs in the app we have used our own unique image optimisation method to keep the app size down to an absolute minimum.

All updates are free of charge. Once downloaded no internet connection needed – just download the app and start birding!

Features included in this release:
Summary, Height, Shape, Bark, Leaf, Flower, Fruit, Buds, Branching, Tree Type.

Detail included in this release:
Family, Genus, Native Species, Introduced Species, Notes, Status, Distribution, Ecological Value, Typical Location, Soil Preference, Timber, Firewood, Diseases, Medicinal and other uses.

Visit our internet support site for more information.

We are happy, if you like our app. Please don't hesitate to email us if you have any questions or suggestions or comments at

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Tree Id - British Tree Identification Guide on the App Store on iTunes

Isoperla Ltd


A stunning visual guide to identifying trees of the British Isles.
All native and naturalised species of the British Isles are covered.
No connection to the internet or mobile network is needed.

Great fun to use, identification can be enjoyed by the whole family.

The original and the best, TreeId is an easy to use but comprehensive field guide to trees found growing in open countryside and natural woodland of the British Isles. The guide has been created by professional published ecologists, accept no cheap imitations!

One of BBC Countryfile's top 10 apps and one of the World Wildlife Fund's top 10 apps. Described as "incredibly useful" by ITV's Seth Conway and "a lovely app" by Adam Vaughan of the Guardian. It was voted No. 5 in the Guardian Green Living top 10 apps and was given the "Best" award by iPhone Apps Plus. Our app is the only tree identification app in the Woodland Trust top apps list.

Have you ever been on a walk in the countryside and wondered "What tree is that?". TreeId is a great tool to help you quickly and easily identify trees you find in the British countryside. Its great fun to use too. With TreeId, identification can be enjoyed by the whole family, and can engage children with the natural world around them. For the tree enthusiast, there is comprehensive anatomical and ecological information, with high quality images of the leaf, flower, fruit etc, of every species.

When you have identified a tree, why not take a photo and record it on our map. See how many species you can identify this year!

The app does not need an internet connection, all content is downloaded when the app is purchased.

Isoperla field guides are the only products on the market that use the KUSAM species identification methodology. This state of the art method is a modern taxonomic keying system designed specifically for use on mobile devices.

User group:
Join our user group and get emails regarding updates, participate in forums and contribute to future releases.

Isoperla also develop apps for other companies see our website for details:

TreeBook on the App Store on iTunes



TreeBook is the authoritative guide to 100 of the most common trees in North America, produced by veteran forester Steve Nix (of fame), and developed by Ash Mishra (developer of the very popular CBC Hockey and CBC Radio apps).

The application's easy, intuitive interface provides an easy way to determine the type of tree you are looking at - with images, search, synonyms for trees, layman terms, and for the more scientifically minded - detailed terminology.

Hand-drawn images, photos, and range maps complete the thorough description of each tree.

Please note, this App only contains information for trees in North America.

Precision Lawn Care on the App Store on iTunes

Martin Mobile Marketing, LLC


Precision Lawn Care & Landscaping takes you on a visual journey of our completed projects through its Gallery function. Visit our fireplaces, tree and shrubs, and rocks. We use this to send out messages to keep in touch with you. Call us direct through the app to set up an appt.

Precision Lawn Care & Landscaping Features.
*Call us directly from your app.
*Recieve messages and coupons.
*Share with your friends.
*See photos of our beautiful landscaping.
*visit our fan wall.

Dirr's Tree and Shrub Finder on the App Store on iTunes

Timber Press, Inc. Apps


Based on Michael A. Dirr’s classic work, The Manual of Woody Landscape Plants, Dirr's Tree and Shrub Finder covers 1670 species and 7800 cultivars, with 7600 high-quality plant images. The plant database is searchable by 72 criteria, including hardiness zones, water and light requirements, growth characteristics, flowers, fruits, and fall colors. The app offers the latest and most reliable information on woody landscape plants for the landscape professional and the home gardener alike in an inexpensive and accessible format.

• Sort by common and scientific name
• Search function with 72 criteria makes finding a specific plant easy
• A–Z Browse Feature
• 7600 photographs, plus more than 1120 line drawings
• Includes over 9400 plants, more than any other app on the market
• Based on Michael Dirr’s celebrated Manual of Woody Landscape Plants

Leafsnap UK on the App Store on iTunes

Peter Belhumeur


Leafsnap UK is a field guide to UK trees developed by the Natural History Museum, London, working with the United States Leafsnap teams. It uses visual recognition software to help identify tree species from photographs of their leaves.

- 156 tree species from across the UK
- Beautiful high-resolution images of leaves, flowers, fruits, needles, cones, petioles, seeds and bark
- Helpful text on every species
- Collect, label and map the trees you identify
- Help scientists understand trees and the biodiversity they support

More information on identifying trees with Leafsnap UK can be found on the Natural History Museum website by following the Leafsnap UK support link.

Leafsnap UK is the latest in the E.O. Wilson award-winning series of Leafsnap apps developed by Columbia University, the University of Maryland and the Smithsonian Institution. Leafsnap UK is supported by the Natural History Museum London and Calouste Gulbenkian Foundation. High-resolution images within the app were created by the Natural History Museum and the conservation organization Finding Species.

Leafsnap on the App Store on iTunes

Peter Belhumeur


Leafsnap is the first in a series of electronic field guides being developed by researchers from Columbia University, the University of Maryland, and the Smithsonian Institution. This free mobile app uses visual recognition software to help identify tree species from photographs of their leaves.

Leafsnap contains beautiful high-resolution images of leaves, flowers, fruit, petiole, seeds, and bark. Leafsnap currently includes the trees of the Northeast and will soon grow to include the trees of the entire continental United States. Leafsnap's high-resolution images were created by the conservation organization Finding Species.

PlantNet on the App Store on iTunes



Pl@ntNet is an image sharing and retrieval application for the identification of plants.

It is developed by scientists from four French research organisations (Cirad, INRA, Inria and IRD), and the Tela Botanica network, with the financial support of Agropolis fondation.

Among other features, this free app helps identifying plant species from photographs, through a visual recognition software. Plant species that are well enough illustrated in the botanical reference database can be easily recognized.
This app works on more than 3700 species of wild flora of the French territory, the species list is available through the application. The number of species and the number of images used by the application evolve with contributions of end users to the project.

It doesn’t allow the identification of ornamental plants. It works even better than the pictures submitted are focused on one organ. Pictures of tree leaves on uniform background provide the most relevant results.

If you correctly identify a species, you can participate to the project by submitting your observation with the "contribution" button. These contributions subject to a moderation process will be validated collaboratively.

To find this application on the web, go to the following link:

Those who want to contribute more interactively to this participatory science project can go to:

Trees 2 PRO - The Field Guide by NATURE MOBILE on the App Store on iTunes



The ultimate FIELD GUIDE to TREES OF EUROPE and NORTH AMERICA, all in the palm of your hand!

Finally, you have the option to identify species without the help of a heavy book. You get a comprehensive library full of facts, figures, and images. Learn where you can find certain species, how their leaves, flowers, and fruits look like and taste.
Find inspiration and experience nature in a whole new way.

Apps and books help to determine what species it is, but you are still unconfident?

You now have the best chance to correctly determine the right species with the Online Species Consultation. Enthusiasts and Biologists from around the world will help identify what species it is.

You discover a species or make a great snapshot?!

With the sightings function you are organizing your discoveries on the road or at home! For each sighting, you can store comprehensive information, e.g. photo, time, GPS position and location.


* 200 tree species - 2000 images
* Extensive description of the species
* Tree names in 7 languages
* Scientific identification
* Online Species Consultation
* Capture and share sightings
* Quiz game


- Size, leaf, flower, color, growth, etc.
- Berry, stone fruit, apple fruit, nut, etc.
- North America, Europe, Asia, etc.


* Guess species from images
* Learn to distinguish different species


* Guess species from pictures
* Learn to distinguish different species



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