WWF's projects support the health of forests and oceans, the accessibility of fresh water, wildlife preservation, the reduction of food waste, and the promotion of renewable energy.
There are 27 apps participating in the campaign, which runs through April 24, and here are some of our favorites.
Note: only the iOS versions of the apps support WWF, but the Android apps are linked here, just in case.
1. The Earth by Tinybop ($3, iOS) is an interactive, educational app intended to spark conversations between kids and parents about how our planet works.
Travel through time to see how Earth has changed over millions of years. Investigate how deserts, mountains, oceans, and glaciers were first formed. You'll learn new vocabulary while engaging with the app's beautiful original artwork and unique sound design. The app is offering three new interactive features focused on forest, energy, and water for the Earth Day campaign.
2. Yoga Studio ($4, iOS) includes high-definition video classes, plus a guide to over 280 poses.
3. Recolor (free w/ in-app purchases), the coloring book for adults, will feature 10 artists who have created art based on WWF's mission.
Recolor helps you relax and unwind with a bit of therapeutic coloring. The art, of which there are over 600 designs to choose from, is designed to relieve stress. Different themes (like floral and mandalas) cost $1 each, while bundled packages range from $6 to $8.
4. Map My Run+ ($3, iOS and Android) created a new challenge that unlocks new nature-inspired badges called Run Nature.
This fitness app can help you log and record over 600 activities including running, walking, gym workouts, and yoga. For running and cycling, you can record GPS-based workouts and see calorie burn, elevation profile, and other stats. I like this app's "Route Genius" feature which helps you discover new places to run.
Map My Run+ is ad-free, while the free version is supported by ads.
Customize your images with fine-tunable color and white balance settings, or discover inspiring work done by the community. VSCO is offering a new WWF preset for landscape and wildlife photography, intended to enhance the lights and colors of natural environments.
6. Tabs & Chords by Ultimate Guitar ($3, iOS and Android) offers a huge catalog of guitar and ukelele tabs.
You get offline access to your saved tbs, quick search, and auto scroll. In addition to music, the app includes a tuner, metronome, and loop/tempo control
8. Procreate ($6) is the drawing app of choice for many digital artists.
9. Trivia Crack (free w/ in-app purchases, iOS and Android) is a fun game where you challenge friends with questions in 7 different categories.
If you purchase custom characters, you can challenge friends to WWF-inspired trivia.
10. Enlight ($4) is a powerful photo manipulator that lets you add text and special effects.
With Enlight's tools at your disposal, you can overlay two photos, create montages, use frames, add gradients, and more. There's also an intelligent photo correction feature that can repair over- or under-exposed images and clone/heal to remove defects.
11. SimCity Build It (free w/ in-app purchases, iOS and Android) appoints you mayor of a city where you need to solve challenges like traffic and provide services like power plants.
You can also support the campaign by downloading Angry Birds 2 (free w/ in-app purchases), Best Fiends (free w/ in-app purchases), Candy Crush Soda Saga (free w/ in-app purchases), Cooking Dash 2016 (free w/ in-app purchases), Cut the Rope: Magic ($1), Disney Infinity: Toy Box 3.0 (free w/ in-app purchases), Dragon City (free w/ in-app purchases), Hay Day (free w/ in-app purchases), Hearthstone (free w/ in-app purchases), Jurassic World: The Game (free w/ in-app purchases), Kendall & Kylie (free w/ in-app purchases), LINE (free), Line: Disney Tsum Tsum, MARVEL Contest of Champions (free w/ in-app purchases), Star Wars: Galaxy of Heroes (free w/ in-app purchases), and WWF Together (free).