Remote-updated day clock for aging parents

The idea

Families of elders with early dementia buy dedicated “day clocks” on Amazon at USD 60-100 in enormous volume — the reviews are thousands of adult children saying the same thing: Mum keeps asking what day it is. But a dumb clock answers only that one question. The calls the family actually fields are the next ones: is today the day Sarah visits, did I take my pills, is it morning or evening. The clock on the wall knows none of this.

The wedge is remote family editing. Any cheap tablet in kiosk mode becomes a display the whole family updates from their phones: today’s appointments, med reminders, a note that the carer comes at ten, new grandkid photos. The elder touches nothing except an optional Call Me button. The dumb clock proved the shelf space on the wall; this fills it with the answers the family currently delivers by phone, several times a day.

Who pays

The adult child, GBP 7 a month, who was about to spend GBP 80 on a dumb clock anyway and often lives in another city. Subscription pricing holds because the product delivers daily relief for the whole sibling group, who typically split it. Distribution: the same channel the dumb clocks own — Amazon search intent captured via content and ads on “day clock for dementia” — plus dementia carer Facebook groups and memory-care occupational therapists who recommend orientation aids professionally.

MVP scope

• Tablet pairing by short code with long-lived device tokens, no on-device login
• Display: huge day/date/time, coloured day-part banner, today’s events, photo slideshow
• Family editor for schedule, recurring events, photos, and member invites
• Realtime updates, offline caching, and auto night dimming on the display
• Call Me button that texts a chosen family member, Stripe subscription
• Skip for v1: video calling, med confirmation tracking, voice features, and custom hardware

Build DayFrame, a two-part web app: a full-screen display that runs on any cheap tablet on an elder's wall, and a phone-friendly editor their family uses remotely. Stack: Next.js (App Router), Supabase (Postgres + auth + realtime + storage), Stripe.

Core flow: an adult child signs up, creates the display, and pairs the tablet by opening dayframe.app/tv and entering a 6-character code (no login on the tablet, ever — pairing mints a long-lived device token). Family members are invited to the editor, where they manage today's schedule ("Sarah visits at 3pm", "Take morning pills with breakfast"), recurring events, and a shared photo library.

The display shows: enormous day/date/time, a day-part banner (Morning/Afternoon/Evening/Night with distinct background colours, because "is it 6am or 6pm" is a real dementia question), today's events with the next one highlighted, and a photo slideshow with captions filling idle time. Edits appear on the wall within seconds via Supabase realtime.

Pages: display view, family editor (schedule, photos, members), pairing flow, and billing.

Implementation details: the display must survive real homes — cache today's data locally and keep rendering through wifi drops, dim automatically at night, and never show an error dialog, a cookie banner, or a software keyboard. Include a Call Me button that texts a chosen family member "Mum tapped Call Me"; nothing else on screen is tappable.

Pricing: GBP 7/month per display via Stripe, 30-day free trial. Publish a one-page guide to buying a GBP 60 tablet and enabling kiosk mode.