Check whether application is installed or uninstalled

Question

Can I define that application was installed earlier? For example I can check whether application is installed or not installed but if application was installed and later was uninstalled. Is there way to check it or not?

you can check using package name. here is [link][1] [1]: http://stackoverflow.com/questions/2695746/how-to-get-a-list-of-installed-android-applications-and-pick-one-to-run — Hiren Dabhi, Jan 03 '12 at 08:48
other link http://www.coderanch.com/t/492490/Android/Mobile/Check-if-application-installed — Hiren Dabhi, Jan 03 '12 at 08:49

score 1 · Accepted Answer · answered Jan 03 '12 at 08:51

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Phone does not store any information about the uninstalled app. If ur app has a backend, then try saving UDID in the server when app is installed. So that u can check next time whether the app is once installed and uninstalled in a phone. But if ur app is a stand alone app with out any server, u cant do that.

answered Jan 03 '12 at 08:51

Seshu Vinay

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getDeviceId() from TelephonyManager – Seshu Vinay Jun 18 '12 at 11:44
How would you find out that your app has be uninstalled from a device? – Gaurav Agarwal Jun 18 '12 at 11:52
U cant find it. Sorry, Currently android does not has it. – Seshu Vinay Jun 18 '12 at 11:54

score 0 · Answer 2 · answered Nov 14 '19 at 06:09

If you are supporting FCM in your app . Than have a look at the server side api for sending the notifications If sending fails to a user , we can consider that user has uninstalled the app. Have a look at the following article.

https://medium.com/what-is-singleton-pattern-and-why-we-need-them/how-to-track-uninstalled-users-from-app-using-fcm-afdba7301116

I haven't gone though backend apis for FCM. not sure whether we get this info while pushing out a notification to a single user or a group of users.

my intention is that try for FCM if it useful for you to determine the install/uninstall status

score 0 · Answer 3 · answered Jan 03 '12 at 08:47

Uninstalled apps are per default leaving no trace on the phone.

If it is your own app you want to check whether was installed and later uninstalled you could code your app to leave a trace, either on a server (sending the phone ID to the server) or on the SD Card. Both methods requires permissions.

If it isnt your own app you want to check whether was installed and later uninstalled you are out of luck, sorry.

score 0 · Answer 4 · answered Jan 03 '12 at 08:51

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You could create a file on the SD card when the application is installed the first time.

Then when it's reinstalled, your application will check the presence of this file.

answered Jan 03 '12 at 08:51

clemp6r

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If the user deletes that file, how can u check? – Seshu Vinay Jan 03 '12 at 08:52

Check whether application is installed or uninstalled

4 Answers4