Customer support “aims” to get back to you within 1-2 business days, but if the answer actually requires any thought or work, they will drop you indefinitely, or dodge your questions with silence until you press repeatedly. If you try to call, they will put you on hold and then hang up on you after 20+ minutes. They will not work with your insurance and will refuse to reimburse you for any retroactive coverage. They will also not provide a detailed, itemized receipt, even if you end up having to manually submit for reimbursement. Their app will reschedule deliveries to a later date without your knowledge or awareness, and may outright cancel it altogether.
This morning, AltoPharmacy conveniently encountered errors when trying to either schedule a delivery or send a support message, until 9:01 AM, a minute past the cutoff for an early same-day delivery.
In short, they do nothing a pharmacy should do, and everything a pharmacy should not do. Avoid like the plague.