Use Bot to package your own html website into an apk..

URL Packaging APK Telegram Robot: If you have a website, users need to access it through an input browser, which is more troublesome. You can package the website into an APP, and convert HTML to APK packaging so that users can access it with one click. Using our online packaging service, you can download the Android installation package after the APP packaging is completed, and the web-packaged APK installation package is permanently valid.
If necessary, you can contact me on Telegram: @Fqqianming
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