Protect your app with password.
The very first time need to reset the password.
The default password after reset, is the "admin". Its good when forgot your pass.
You can change password anytime, but for this, need the old password.
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On this page of the site you can watch the video online App Inventor 2 tutorial - simple password protect with change, reset function with a duration of hours minute second in good quality, which was uploaded by the user DIY Planetleak 23 February 2014, share the link with friends and acquaintances, this video has already been watched 86,672 times on youtube and it was liked by like viewers. Enjoy your viewing!