Shoplist is an app to manage your shopping lists.
Create as many as you want, and share them if you want to. When shared, you can edit them together. You can also check what has been collected, and what is still missing on the lists.
Create groups with people whom you frequently need to share lists with. This is great for families, and friends as you can all edit and use the shopping lists created in these groups.
With Family Sharing set up, up to six family members can use this app.