The Green Book (LITE) – Find one at a used bookstore This app is based on a New York Times Bestseller, billed as the ‘Everyday guide to saving the planet one simple step at a time’. I rather Scottishly opted for the free ‘LITE’ version, and found it to be a fairly basic level offering of green information. Perhaps the paid version As well, the interface is linear – you flip through it page by page like a little booklet. I’m getting more used to interactive apps on my iPhone and found myself wishing for a bit more fun