New: ScreenToGif (Sep 20, 2022), Platform 22.0.1 (Jul 21, 2022)
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How to make sure that the settings of a portable app are maintained after a reboot?
Check in the Data folder if the settings file is really updated or check where is the settings saved and see if everything needed is inside. If there is a bug you can report it.
But if you want to know if a app is correctly doing is job by saving... just close it normally and eject your external storage.
Portabilizing application... 14 at the moment