How to set a time limit for sending messages in android?

Question

Android

Dear friend, the question is the following, there is a feedback form in the application, I would like to make a limit on the number of requests from one user by the application,
how to implement it? Similar to cookies on the web, we could insert a cookie to the user with a lifetime, and if it is alive, then do not send a request, but here is a slightly different story, what are your thoughts on this?
PS: The application does not maintain any user accounts, everything is anonymous, let's say.

Answer 1

Well, in general, you wrote everything correctly - you are doing something similar to cookies. Specifically - when sending, check - if there is no conditional file - send, create a file and write the time of the last send there. If there is a file - read the time of sending from there, calculate how much time has passed, if enough - send and overwrite the file. Something like this.
Cons - you can cheat by changing the time on the device or demolishing the installation of the application.
You can use the built-in database instead of the file, but somehow it's redundant, it seems to me.