The Pocket Environmentalist

17 smartphone apps that help save the planet

10. Bike Repair

For less than five bucks, you can have a bike mechanic—in your pocket! This app, truly a gift to cyclists, includes 64 detailed repair guides with photos, and it explains over 85 common bicycle problems. With this app plus a bit of elbow grease, you’ll be back on your wheels in no time.
($3.99; Apple, Android)