There are some very big differences between 24/7 hourly home care and 24/7 live-in care. Both serve to keep mom or dad safe at home when they cant do so by themselves anymore.
Lets start with 24/7 live-in care. Live-in care is best for those care recipients that usually need help during the morning, afternoon or evening, but mainly sleep through the night undisturbed.
A live-in works up to 16 hrs each day, but then gets an unpaid sleep shift of 8 hrs each night. They will always get up in case of an emergency or a call for help but otherwise they need to be left alone to sleep and recharge most nights.
If you hire your live-in for 5 or 6 days per week, then you will always have the same person which is great for continuity of care. If you need the full 7 days covered, then a second live-in will be needed to split the month with them. No-one does 7 day by them selves for very long with out burning out.
Most 7 day cases are split evenly with one working 4 days and the other 3 days, and then reversing the order the following week, so each month both are covering 15 days. So at most, you will have 1 live-in if you choose 5 or 6 days, and 2 different lives on a monthly basis if you need 7 day.
24 hr home care on the other hand is for care recipients that need physical help or monitoring regularly during both days and during overnights.
Usually 2-3 different caregivers come to the home each day and work 8-12 hour shifts in the home. To avoid overtime, agencies typically schedule 4-6 different people each week to fill all the shifts. It's a nightmare to manage, as people call in sick or are running late and people are always coming and going. This type of care used to be only used in very high needs cases because of the huge challenge of making it work, and the crushing cost to the family. Most agencies charge a min of $500 per day, $15,000 month for the service.