About This Site
Personal safety app with daily check-ins to alert loved ones if user misses confirmation. Demumu is a lightweight personal safety app designed for people living alone or those who worry about loved ones who live alone. It functions as an invisible safety net by requiring simple daily check-ins. If the user misses consecutive check-ins, the app automatically notifies their designated emergency contact via email, addressing crucial concerns such as 'kodokushi' (unnoticed deaths). It is focused on privacy, effectiveness, and simplicity.
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CZGPT
AI subscription payment service — activate ChatGPT Plus, Claude Pro, Codex and more with Alipay or WeChat Pay in minutes.
CZGPT is a self-service subscription payment platform for activating premium AI subscriptions — including ChatGPT Plus, ChatGPT Pro, Codex, Claude Pro, Gemini, Grok, and Suno — using Alipay or WeChat Pay, with no international credit card required.
Many users cannot complete AI subscription payments because their cards are declined by international payment systems. CZGPT solves this: pay in RMB via Alipay or WeChat Pay, receive an activation key automatically within 1–2 minutes, and complete the upgrade yourself through a guided redemption flow. No account password is ever required, and each order activates an independent subscription on your own account.
Key capabilities:
- One platform covering all major AI subscriptions (OpenAI, Anthropic, Google, xAI, Suno)
- Alipay and WeChat Pay support with instant automated key delivery
- Self-service redemption — you keep full control of your account credentials
- Typical activation completed within 2–5 minutes
- Full refund if an activation cannot be completed
- Order lookup and human customer support
Use cases:
- Subscribing to ChatGPT Plus/Pro with Alipay or WeChat Pay instead of a foreign credit card
- Developers activating Codex or Claude Pro subscriptions for AI coding tools
- Teams activating multiple independent AI subscriptions, one per account
- Renewing AI subscriptions monthly with full spending control (no auto-charge)
CZGPT also maintains a free, continuously updated guide covering AI subscription methods, common payment errors, and troubleshooting.
Key Features AI
Core Features
Daily Check-Ins
Automatic Emergency Alerts
Privacy First (No location tracking, end-to-end encryption)
No Account Needed (Immediate setup)
Advantages
Simple, one-tap daily operation.
High emphasis on privacy: no location tracking, no data selling, end-to-end encryption.
No account registration or login required; setup takes less than 30 seconds.
One-time purchase price with no subscriptions, ads, or hidden fees.
Featured in media (BBC News) as a relevant solution.
缺点:Currently available exclusively on iOS.
缺点:Requires user diligence for daily manual check-ins.
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