How to use MIT AppInventor 2 without having to be connected to the internet or logging with a google account or suffering from slow speed and possibly data loss from unstable WiFi.
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Download the portable version AI2U for free from https://sourceforge.net/projects/ai2u/files/ - THANK YOU, DEVELOPERS!
There is an official offline/Windows server version but seems to be extremely non-portable unfortunately (can only run if in C:\Program Files (x86)/ ?