MINNEAPOLIS >> When his wife, Anne Maple, was diagnosed with early onset Alzheimer’s disease, Scott Carpenter soon discovered there were no really effective products to help caregivers monitor the safety of loved ones with dementia.

So he recruited their son, Paul Carpenter, to make one.

Scott, 64, a professor of French literature, also ran a tech company for several years. Paul, 33, is a software engineer specializing in mobile platforms. Together, they created BoundaryCare, an app that uses an Apple Watch (it will soon be available for Android) to share information with caregivers on their iPhone or iPad.

The men founded BoundaryCare in 2019 and brought the app to market last year. Sadly, it came too late for Maple, whose disease was too advanced by the time the app was ready. She died in April.

An estimated 6 million Americans have Alzheimer’s or other types of dementia, according to the Centers for Disease Control and Prevention; that number is projected to double by 2050. Meanwhile, nearly 80% of adults 50 and over want to remain in their homes as they age, according to AARP.

We asked the Carpenters about BoundaryCare. The questions and answers have been edited for space.

Question: What types of products for protecting people with dementia were on the market before BoundaryCare? Why did you find them inadequate?

Paul Carpenter: Most of the products were single- purpose devices. They might track location but not detect falls, or detect falls without monitoring other health metrics. They were bulky and socially stigmatizing. Our idea was to take a stylish Apple Watch, which has medical-grade sensors, and offer many supports at once.

Q: So how does BoundaryCare help?

Scott Carpenter: Well, location monitoring is huge, of course, so we alert caregivers if a loved one wanders from a defined safe zone or itinerary. Fall detection is critical, too. And because caregiving often involves several people, we make it easy to share responsibilities within the family, scheduling who receives alerts … Then, if you need to check up on your loved one, you can call them on the watch directly.

Q: What other things can BoundaryCare do?

Paul: Thanks to the watch’s sensors, we provide alerts for high or low heart rate, low oxygen saturation and atrial fibrillation. We can track sleep quality and fitness metrics, and even send reminders about meds, hydration or when to feed the cat. … and the data can be exported for sharing with health care professionals.

Q: Can the app be used by people other than those with dementia?

Scott: Definitely. It’s a great support for seniors who are simply aging in place. In that case, you turn off whatever features you don’t need … We also have parents using it to monitor autistic children, as well as agencies that support intellectually or developmentally disabled adults.

Q: How do people get the app?

Paul: They download it on their iPhone from the App Store, and they set it up on a paired Apple Watch. As far as cost goes, most long-term care insurance will cover it, and some individuals will be supported through Medicaid. … Still, many people pay out of pocket, so we try to keep the cost as low as possible.

Q: What sorts of feedback have you received?

Scott: What we hear most often … is that BoundaryCare provides peace of mind. Also, most report that BoundaryCare will help them keep their loved one at home longer.

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For more info, go to boundarycare.com.