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From shopping to gas mileage and EPA regulations to biodiesel filling stations, here are the green iPhone apps you need to make your life just a little more sustainable. You can make a difference and even the smallest things help — dive in and start making your world a nicer place to live!

01. GoodGuide (free) — Find safe, healthy and sustainable products while you shop. Browse, search or simply scan a barcode for detailed ratings on the health, environmental and “social responsibility” of more than 70,000 products and companies.

02. Project NOAH (free) — NOAH stands for networked organizations and habitats. Here’s a tool for people to document and learn about their natural surroundings.

03. Green Genie ($0.99) — Developed in collaboration with a LEED Accredited and a professional Sustainability Consultant, the Genie is more than just green tips, a massive collection of green projects and resources.

04. Green Map ($1.99) — Hook up with the green movement around our oddly dysfunctional world. Over 700 locally-led projects in 55 countries in one place.

05. My Carbon Footprint (free) — A feel good moment in your day. How green are you? Take the quiz and answer the daily questions and know who among your Facebook friends is greenest of all.

06. Biodiesel Buddy ($0.99) — Want to use biodiesel, but have trouble finding local stations? This is the location-aware app with fill up spots and the blends available.

07. 06. Green Gas Saver (free) — An app that lets you monitor fuel efficiency and warns you when you’re driving too fast or turning too hard. On-screen gauges display acceleration and cornering data to help you eliminate bad driving habits.

08. Ecocharge ($0.99) — A useful tool and your advices that’s great for the environment, too. A beautifully crafted battery manager that plans an alarm whenever it’s fully charged so you don’t forget to unplug — don’t waste energy or your precious batteries.

09. TreeHugger (free) — Helping the masses get hooked on sustainability. The one-stop shop for green news, solutions and product information.

10. EPA and CEQ Regulations (Title 40 Code of Federal Regulations – Protection of Environment) ($29.99, universal) — Are you a consultant, contractor or bureaucrat? You need this reference in your pocket — the complete text of Title 40 CFR.

And, if you’ve got an opinion about these or another app we haven’t covered, be sure to leave us a comment!

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