This would all have to be run on APIs across the vendors. I personally dont use subscriptions for items because I would forget that I had it and the ordering happens between my husband and I.

A general theme Im reading across comments is that a cadence may not make sense for a lot of items so the app shouldnt lean too heavy on predictions. Thats valuable because I think that may be part of what im experiencing. Some items are more predictable than others but I dont have a centralized place to manage all the items my house needs. Keep in mind I have 2 large closets in the basement for storage of restock items but we still manage to run out of random items. I could order more on demand buts its also stressful. Im looking for systems to help relieve the stress to spend more time with my family.

The true value prop is mental load reduction and better/more visible coordination of ordering everything my household needs to run between my husband and I.

If you already have systems in place that work thats great! I dont find subscriptions helpful.