In some devices, ex Google Pixel 3 XL, button Install disappear, although they use same google play account and open a same internal app.

Does anyone have a suggestion for my issue? Any response would be appreciated.
I tried all of the answers but with no luck. But I got the hint from them and tried to change my account. In my case, I have 4 accounts registered at Google Play, and two of them are registered as tester accounts. Here's the weird behavior, I changed to a non-tester account and it works but it doesn't when logged in to the tester account.
Try these from top to the bottom:-
Settings > Apps & notifications > Your App

Internal app sharing option is on. Goto App Store > Settings > Tab 7 times on "Play Store Version" Then you will see the following option.

Settings > Apps & notifications > Google Play Store > Storage & Cache > Clear Storage/CacheIf you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With