One app to identify plants is a useful tool for people interested in botany, gardening or simply for those who want to know more about the plants around them. 

These apps, available on smartphones and tablets, allow users to identify plants based on their visual characteristics.

The basic functioning of these apps usually involves using the device's camera to capture an image of the unknown plant. 

The app then uses artificial intelligence with image processing and learning to compare the plant's visual characteristics against a database of known plants.

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These databases have detailed information about various plant species, such as photographs, descriptions, growth habits, environment preferences and other important characteristics. 

Based on the comparison of the captured image, the app to identify plants displays accurate plant identification.

As well as identifying unknown plants, they also provide additional information such as care tips, details about the plant's life cycle, suggestions of similar species, and even cooking recipes or medicinal uses.

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Some options of app to identify plants The most popular ones are: “PlantSnap”, “PictureThis” and “iNaturalist”.

1- PlantSnap

First, we have PlantSnap, which is a popular plant identification app that uses advanced technology to help users identify plants through photos.

The PlantSnap app is very easy to use. To identify a plant, the user just needs to capture a photo of the plant using the cell phone camera or upload a photo from the gallery. 

Then the application compares the image with a vast database of plants. PlantSnap's database is extensive, containing millions of plant species from around the world. 

It will show you detailed information such as scientific name, family, description, growth habits, environment preferences, and even flowering period details. This information helps users to understand a lot about the identified.

Once PlantSnap has analyzed the photo and compared its characteristics to those in the database, it displays a list of possible plants.

A really cool feature of PlantSnap is its ability to work in different regions of the world. It covers a wide variety of plants, including species native to different countries and localities. 

This makes the app useful for people in different countries and continents, allowing them to identify plants specific to their regions.

Another interesting aspect of PlantSnap is its user community. Here users can share their discoveries, ask questions and interact with other plant lovers through the app. 

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Additionally, PlantSnap encourages users to contribute photos of plants to help improve the database and the accuracy of IDs in the future.

PlantSnap is available for devices iPhone iOS and android

2- PictureThis

PictureThis is a app to identify plants very popular for plant identification through photos.

It allows users to take a picture of an unknown plant or upload an image from the gallery and then the app uses advanced image processing techniques and artificial intelligence to identify the plant.

The application has an extensive database with thousands of plant species, offering detailed information about each one of them, including scientific name, description, distinctive characteristics and cultivation tips. 

It also provides a list of similar plants to help further refine the identification.

Finally, PictureThis is very accessible to users of all levels of gardening or botanical experience. 

In addition, the app also offers additional features such as a gardening diary to track the growth of plants, a question and answer forum to interact with, and an article section with useful information about plants.

The app is available for devices iPhone iOS and android, and it's free.

In short, plant identification apps are useful and convenient tools for nature lovers and gardeners. 

That is, they allow users to discover and learn about the plants around them in an interactive and accessible way, providing an interesting and enriching learning experience.