I have a lot of duplicated SMS on my Android 7.1.2 Phone, because of the app "SMS Backup & Restore". I would like to delete redundant SMSs. How can I do that? Before actually doing it, I would like to inspect the would-be result.

What I tried:

  • Not tried myself, but there's an app called Deduplicate SMS which should do exactly that.
    – Izzy
    Jul 24, 2017 at 16:52
  • @Izzy: That app has already been mentioned by me and it has rather mixed reviews. As I mentioned, it lacks the option to inspect what the changes will be - in other words, which messages are going to be deleted. I am not sure if I can trust the app.
    – Make42
    Jul 25, 2017 at 7:59

1 Answer 1


just found that on "SMS Backup + Restore" the option to not restore duplicates is present when you actually go to restore, under "advanced options" it's actually down as "disable duplicate check (faster restore) and is by default set to "off" so it will check. Having just run it myself, I can confirm it does work (or at least has for me)

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