Unable to install my app in some android phones

[MOHD USMAN]

Hi ! to all,

I have made an app which records voice and plays recorded voice on shaking the mobile phone. App is getting installed on my phone LYF Wind 5 (Model no. LS5013, Android version 6.0) and working as desired. But it is not getting installed on some other android mobile phones such as ASUS Zenfone Max (Model no. ASUS_Z010D, Android version 6.0.1). Unable to sort out the problem. Please help!

Your Shaking apk was removed for security reasons.  The Forum prohibits the posting of apk files.  You are welcome to post screen or block images or an aia.

[Evan Patton]

Do you observe a specific error message when the app fails to install? We will need more information about what you are experiencing in order to provide relevant guidance.

Regards,

Evan

[MOHD USMAN]

Thanks for prompt reply.

On hitting 'install' button' security message "This APK file might contain unsafe content. Make sure you trust the sender before you open and install it" 

 is shown. On clicking 'OPEN' button nothing happens.

Please see video link-

https://drive.google.com/file/d/1lRWdOeD7V5aGl3xqb2tH3BCtyuhSLQOn/view?usp=sharing

[SteveJG]

After you clicked  OK  or OPEN, did you try to install the apk either using the QR code or sending the apk to your eMail?

 Anyone installing your app (which is an ".apk" file) will need to change the setting on their phone to allow installation of non-market applications:

To find this setting on versions of Android prior to 4.0, go to "Settings > Applications" and then check the box next to "Unknown Sources". For devices running Android 4.0 or above, go to "Settings > Security" or "Settings > Security & Screen Lock" and then check the box next to "Unknown Sources" and confirm your choice.

[MOHD USMAN]

Thanks for help.

Matter resolved.

Actually, I was sharing my app through whatsapp and my friends were trying to install the app from there only. Therefore, were unable to install.

Now, they have installed the app by accessing file manager. 

Thanks once more.