The best alternatives to Petal are Lomi Home Composter, Zera, and GenieCan. If these 3 options don't work for you, we've listed a few more alternatives below.
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Lomi is the world's first home composter that's able to break down bioplastics. Using heat, abrasion, and oxygen it is able to complete the composting process in as little as 4 hours - odor free and mess free.
Recyclinator is a simple web application that tells people whether an object is recyclable or not. Its easy UI lets people take photographs of objects and get results with just one touch.
Compo Soil is the world's first home composter that breaks down bioplastics. Using heat, abrasion, and oxygen it is able to complete the composting process in as little as 3 hours - odor free and mess free. Say goodbye to leaky trash bags.