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    • ZE3kr is the ID used by James Guo to publish content. The published contents include original articles, videos, pictures, short essays and app recommendations about technology and photography.

    If you have any issues, please comment directly under the relevant article, or give feedback here.

    Contacts

    You can chat with me privately through these methods. You can enable end-to-end encryption in the following ways:

    If you know my US mobile number, you can also chat with me in private with end-to-end encryption in the following ways:

    • FaceTime/iMessage
      • ✅ End-to-end encryption by default
    • WhatsApp
      • ✅ End-to-end encryption by default, you can verify the end-to-end encryption security code with me through other contact methods

    If you know my US mobile number, you can also contact me through the following unsafe methods. You need to know that the communication in these methods does not support end-to-end encryption, so it will be eavesdropped:

    • SMS (text message)/MMS (multimedia message)/phone call
    • ❌ Non-end-to-end encryption
    • ⚠️ There may be operator charges

    Unless otherwise stated, the text, pictures and videos of this website use Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International for licensing.

    Privacy Policy

    This website uses self-built Matomo for statistics, and a small anonymous cookie is used to identify the visitor ID. This cookie will never transmitted to third parties.