12 Best Green Apps for a More Sustainable and Eco-Friendly Lifestyle

Building new sustainable habits into a life that's already full might be difficult at first. That's where green apps help most. They just make better choices easier. 

We selected the most effective tools that cover a wide range of activities. These include 12 apps, from OLIO, which helps to reduce waste, to the Botan plant ID & care app, which helps you care for flora. 

Just take a look and choose the one that best fits your needs, priorities, and lifestyle.

1. Botan App

Some eco-friendly apps are designed to help plants directly, and Botan is one of the best options in the category. This tool can identify plants in your garden or in the wild, provide all the information about the species, and set up a custom care or recovery guide in 1-3 seconds. You can also find selections of non-toxic, endangered, fast-growing plants, as well as pet-friendly plants and species from other categories, on the site or in the app blog. 

• Environmental benefits: Detecting plant diseases early, reducing plant waste, identifying invasive or endangered species, raising flora awareness
• Key features: Plant ID, care plans, disease ID, automatic recovery plans, botanist live chat, Light Meter, tasks & reminders, educational blog
• Platforms: iOS, Android
• Best for: Beginner, casual & experienced gardeners, enthusiasts seeking deeper knowledge about flora, those who want to protect wildlife

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2. Too Good To Go 

Too Good To Go is one of the apps that help the environment by turning a daily problem into a practical solution. Every day, restaurants, cafés, and grocery stores discard unsold food, and it ends up in landfills, where it becomes one of the largest sources of methane emissions. 

The app lets you buy a Surprise Bag of whatever a nearby business has left, at half price or less, and collect it within a set time window. 

• Environmental benefits: Preventing food waste, reducing methane in landfills
• Key features: Location-based map of participating businesses, Surprise Bag purchase, diet preference filters, personal impact tracker
• Platforms: iOS, Android
• Best for: City dwellers who want to cut food waste and spend less money on meals

3. Ecosia

With some eco apps, switching costs you nothing, and Ecosia definitely belongs to this category. It’s a search engine that funds tree planting through its ad revenue. You can just surf the web as you normally would, and about 80% of its profits go toward reforestation projects in over 35 countries. 

Since 2009, it has funded the planting of over 200 million trees, prioritizing native species.

• Environmental benefits: Funding reforestation, restoring biodiversity, running on renewable energy 
• Key features: Standard web search powered by Bing, personal tree counter, monthly public financial reports, privacy-friendly browsing
• Platforms: iOS, Android, browser extension
• Best for: Anyone who wants their regular internet use to have a measurable environmental impact

4. Earth Hero

Currently, Earth Hero is one of the most popular free environmental apps. It calculates your carbon footprint and then gives you a catalog of hundreds of science-based actions across travel, food, energy, home, and advocacy. Each is rated by ease and impact. 

You select what fits you, complete actions to earn Earth Points, and track your emissions as they go down. 

• Environmental benefits: Turning everyday choices into emissions reductions
• Key features: Carbon footprint calculator, Earth Points, tracking progress, personal emissions goals, community climate groups
• Platforms: iOS, Android
• Best for: Anyone who wants a structured, science-backed starting point for reducing their environmental impact

5. iNaturalist

iNaturalist is another plant-focused app on our list. It lets you photograph any plant, animal, fungus, or insect and get an AI-suggested ID, then have it confirmed by a global community of naturalists. You can use it to identify trees or flowers on a hike just as easily as to document insects in your backyard. 

The platform's 300 million observations give researchers real biodiversity data at a time when species are disappearing 10 to 1,000 times faster than the natural background rate.

• Environmental benefits: Contributing to biodiversity research, building awareness of local ecosystems
• Key features: AI-powered species ID from photos, community verification system, observation map and journal, species range maps
• Platforms: iOS, Android, web
• Best for: Nature enthusiasts, hikers, gardeners, and anyone curious about flora around them

6. BlaBlaCar

Carpooling can cut up to 1 tonne of CO₂ per person annually, and BlaBlaCar's community has already avoided 2.5 million tonnes of CO₂ in 2024. The BlaBlaCar app is a long-distance carpooling and bus platform where drivers post trips with empty seats. 

Passengers book them and split fuel costs at a capped price. The tool directly reduces transport emissions and is available across 41 countries. 

• Environmental benefits: Fewer vehicles on the road, an alternative to short flights
• Key features: Driver trip listings with seat availability, passenger booking, cost-splitting, messaging, bus routes, trip history, personal tracker
• Platforms: iOS, Android, web
• Best for: Long-distance travelers looking for an affordable, lower-emission alternative to solo driving and flights

7. OceanHero

Just like Ecosia, OceanHero is a sustainable browser and search engine. But it doesn’t focus on reforestation — it funds ocean plastic cleanup through its ad revenue instead. You search the way you normally would, and for every five searches, one plastic bottle is recovered from the ocean.

It works with Plastic Bank to pay collectors in Indonesia, Haiti, and the Philippines to gather ocean-bound waste before it even reaches the water.

• Environmental benefits: Recovering ocean-bound plastic, supporting livelihoods most affected by plastic pollution
• Key features: Web search with personal bottle counter, ocean impact tracker
• Platforms: iOS, Android, browser extension (Chrome, Firefox)
• Best for: Anyone who wants their daily browsing to make oceans cleaner

8. Good On You

It’s not easy to do deep research every time you’re going to buy new clothes. Good On You does that job for us. The app evaluates big and small fashion brands on their impact on the planet, people, and animals. With this app, you can check a brand's sustainability record before you buy. 

Each brand gets a score from "We Avoid" to "Great".  

• Environmental benefits: Shifting consumers toward greener brands, exposing greenwashing, reducing shopping's environmental footprint
• Key features: Ratings for 3,000+ brands, alternative brand suggestions, sustainable fashion guides
• Platforms: iOS, Android, web
• Best for: Fashion shoppers willing to make more informed buying decisions effortlessly

9. OLIO

OLIO is a local sharing app where you post photos of food or household items and neighbors can claim them for free. It extends the idea of recycling materials to sharing usable things that would otherwise be thrown away. 

OLIO Food Waste Heroes volunteers also collect unsold food from local businesses at closing time to redistribute through the app.

• Environmental benefits: Saving usable food and household items, reducing demand for new goods, cutting food waste
• Key features: Free listings for food and non-food items, neighborhood-based matching, Food Waste Heroes, discounted Lucky Dip food bags
• Platforms: iOS, Android
• Best for: Anyone who wants to share or find free items from neighbors

10. Forest

This app definitely stands out on the list. Forest is a focus app that helps you avoid distractions, but it’s also built around one rule: plant a tree (a virtual one), set a timer, and stay off your phone until it grows. Leave early, and the tree dies. 

The focus mechanic is the product, but the environmental impact is real: virtual coins earned during sessions can fund the planting of actual trees through Trees for the Future. 

• Environmental benefits: Funding real reforestation, reducing energy consumption from mindless phone use
• Key features: Virtual tree-growing focus timer, coin-based real tree planting, shared focus sessions, session history and productivity stats, 100+ virtual tree species to unlock
• Platforms: iOS, Android, browser extension (Chrome)
• Best for: Anyone who struggles with phone distraction and wants their time to contribute to the environment

11. EcoCue

If your carbon footprint is your biggest concern, EcoCue will help you track and reduce it. The app lets you log your daily activities across four categories — travel, home energy, food, and shopping. Then, it calculates your CO₂e emissions. 

Based on what you log, the app's AI suggests practical swaps, for example, driving less, cooking at home instead of ordering out, and taking the stairs.

• Environmental benefits: Turning invisible daily emissions into visible data, identifying habits, building long-term behavior change
• Key features: CO₂e logging, local emission factors, AI-powered reduction tips, EcoPoints and streaks, daily challenges, community feed
• Platforms: iOS, Android
• Best for: Anyone who wants to understand where their personal carbon emissions actually come from and how to reduce them

12. Refill

Refill is a free app that shows you the nearest places to refill a water bottle, coffee cups, and grocery containers at no cost. These can be cafés, restaurants, gyms, shops, and transport hubs that have signed up as refill stations. 

Currently, it covers over 300,000 locations worldwide. 

• Environmental benefits: Lower single-use plastic consumption, making reusable alternatives convenient
• Key features: Location-based map of refill stations, filters by refill type, user-submitted station additions
• Platforms: iOS, Android
• Best for: Anyone who carries a reusable bottle and wants to avoid buying plastic drinks while out

How Green Apps Can Help You Live a More Sustainable Lifestyle

Most people don't lack the intention to live more sustainably. They lack a practical way to act. Green apps target specific choices, and here’s what they can give you in practice:

• Show you lower-impact options that are available right where you are
• Calculate and track the environmental cost of your daily habits
• Connect your spending to brands and businesses with verified sustainability practices
• Redirect money you're already spending toward reforestation, clean energy, and plastic cleanup
• Keep useful items like food, clothing, and household goods in circulation
• Build knowledge of local species, ecosystems, and the natural world around you

No single app changes everything. But each one addresses a specific habit that has a real environmental cost.