Support & Contact

For 冷钱包（Cold Wallet）

Support & Contact
Back to 冷钱包（Cold Wallet）Privacy PolicyTerms of ServiceReview Notes中文

Contact Us

Customer Service Email: guanyuhao666@gmail.com
Website: https://app-review.guanyuhao666.workers.dev

Frequently Asked Questions

Is this an exchange/trading feature?

No. This app is only for locally generating/saving mnemonic phrases and performing offline signatures. It does not provide trading/exchange services.

Will mnemonic phrases/private keys be uploaded?

No. Mnemonic phrases/private keys are only encrypted and stored locally on your device.

Why is camera permission needed?

Used to scan QR codes to import unsigned transactions/addresses, and to display signature result QR codes for the other end to scan.

Reviewer Testing Instructions

This app is an "offline cold wallet" used to generate/save mnemonic phrases locally on the device and perform offline transaction signatures. The app does not provide trading/exchange services or fiat-related features; it does not require registration/login; it does not collect personal identity information; and it has no network access by default.

Testing Steps:

  1. Open the App → Select "Create Wallet" or "Import Wallet"
  2. Enter the wallet home page → Click "Receive" to view the address and QR code
  3. Click "Sign Transaction" → Select "Manual Input" mode → Enter any test address and amount to generate a signature result (after signing, a QR code will be generated for the other hot wallet to scan and broadcast)

Note: This app is only responsible for offline signing, not on-chain broadcasting; on-chain broadcasting is completed by users in a networked environment.