Is it possible to block sending of my app (.apk file) from the phone it is installed on to an other phone? It will not appear in the market, i will install it manually.
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Please clarify your questions. What do you mean by 'being sent to another phone'. When/how does this happen? – inVader Aug 02 '12 at 15:18
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You want to prevent sharing of the .apk file? – Marc B Aug 02 '12 at 15:19
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Some file browsers can create backups from the app, wich you can send via bluetooth to other phones. – Jopi Aug 02 '12 at 15:19
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If you're asking whether it is possible to stop a user from doing stuff with the .APK application file then no, there is no full proof way. But you can make it more difficult for them.
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If user has rooted phone, I don't see how you can prohibit him from making a copy of the apk using adb. How would you make it difficult for an user with a rooted phone to copy an .apk? – wojciii Aug 02 '12 at 15:25
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If you're dealing with rooted users, I think you're only option is some kind of centralized web-service. But even then, there are ways to get around it. From the link I posted above: If you do not do that, then you may, for example, require the application to talk to a centralized web-service that vets the phone ID against a list of authorized devices, allowing the application to run in this case (this is the FlexLM model). – Michael Aug 02 '12 at 15:34