Hi, if ur talking about voice recorder then you can check the recycling bin. If you open the app and click on the 3 dots on the right hand side and click on recycling bin. Hope it helps
it will depend on a few things. in most cases, no. delete means delete. however Samsung recently introduced a function where deleted items can be restored within a short time length, but if its a third party app, they might have a backup file, but to be realistic I don't think you'll get them back