InviChime

One retired phone, guarding one independent life.

InviChime is a 100% free public-welfare initiative developed by a family team, built to bring peace of mind to anyone living alone.

Inspired by traditional wind chimes—if there's physical motion, there is safety.

Designed specifically to breathe new life into idle smartphones from the past decade, InviChime transforms an unused device into a silent home activity monitor (a digital chime). Simply mount your old phone to a refrigerator door/side or place it on a dining table. Away family members no longer need to call every day just to check in; they can know naturally if their loved one has woken up or cooked a meal. It provides an effortless safety net, ensuring loved ones are alerted quickly if an unexpected interruption occurs.

Zero hardware cost, zero learning curve. No cameras, no intrusive monitoring, and no burden of daily check-in taps. Please share it with anyone in need.

PRODUCT OVERVIEW InviChime is a free safety monitoring app for solo living. Utilizing internal device sensors, it intelligently captures "signals of daily life" generated by subtle household interactions. If zero activity is detected within custom watch windows and a local chime goes unanswered, the app automatically dispatches an Absence Alert to preset emergency contacts. It achieves seamless, camera-free protection—no account registration required, zero daily operations, and completely powered by repurposed old devices.

THE INSPIRATION Solo living brings freedom, but also hidden risks—getting stuck in an elevator, trapped by a broken bathroom door lock, or experiencing a sudden health issue unable to call for help. Many independent individuals long for care, yet strongly resist being watched by invasive cameras. InviChime was created to solve this exact dilemma: providing safety without sacrificing personal dignity.

KEY FEATURES • Effortless Monitoring: Captures physical activity through internal motion sensors—no camera feeds, no audio recording, zero disturbance. • Automated Escalation: Automatically routes an Absence Alert to chosen contacts when prolonged inactivity is confirmed. • Zero-friction Setup: Instant use upon installation—no account registration or logins. • Hardware Upcycling: Plug in an idle phone and leave it be; turn "e-waste" into a lifetime guardian. • Dignity & Privacy First: Camera-free design that fully respects and protects personal privacy. • 100% Free Public Welfare: Fully accessible core features with no ads, no paywalls, and no hidden subscriptions.

PRIVACY BY DESIGN—YOUR DATA IS YOUR OWN • No camera, no microphone permissions needed. • Zero behavior logs uploaded. • 100% local-first digital signal processing (DSP) on device. • No account registration or personal identity required.

OTHER HIGHLIGHTS • Ultra-lightweight: Runs smoothly even on 10-year-old legacy devices. • Customizable Watch Windows: Flexible daily monitoring periods, equally practical for young solo living adults and seniors.

IDEAL FOR Seniors living independently, young adults living solo, or anyone seeking an effortless, privacy-preserving safety net against unassisted emergencies.