Yes and no. Green Chef uses industry standard practices regarding food allergies. However, they produce their items in the same factory, so there is a chance the food received may be contaminated by any of the major food allergens.
Hungryroot’s initial questionnaire helps you note which items you’re allergic to. You can also filter their items by your dietary preferences. Some of their foods are produced in the same factory, so there is a chance there may be cross-contamination. However, you can see which items were processed together before purchasing recipes/ingredients. So, Green Chef is not as allergy-friendly as Hungryroot.