email already in use

I'm trying to merge devices, but I get reply that email is already in use (I have 2 different emails). There seems to be many posts with the same general post about this problem, but no reply yet. Specifically I'm trying to merge my iPad and iPhone with no luck. Previously I noted I was trying to merge Duolingo on iPhone and PC (also no reply) Currently my iPad and PC seem to synchronize OK, but not with iPhone, any suggestions?

July 28, 2018


You're trying to create a NEW account on the new device. You don't want to do that, you want to login to the new device with the old account.

If you accidentally pressed the "Let's get started" button instead of the "I already have an account" button, you may need to log out of Duolingo on the new device before you can log back in again with your existing credentials.

July 29, 2018

I'm not 100% sure I understand your question but I can tell you this:

Duolingo keeps all their data on their servers. If you use the same email / password on multiple devices you will be logging into the same account on the Duolingo servers and everything will stay in sync.

You cannot merge two separate accounts that use separate email addresses.

If you are getting "email already in use" then you are trying to create a new account, not log into an existing account.

July 29, 2018

Basically it is an IOS app problem.

You guys just don't find the correct user login button as it was horribly coded.

The moderator Pentaan described the IOS login process in great detail.

"Syncing up an online account and an app with the same email account":

July 29, 2018

Hi Thomas,
The login on iOS seems to have changed.
Please, don't refer to this old post. Hartelijke groet uit Nederland.

August 1, 2018

I have tried everyone's suggestions to no avail. It's too frustrating to continue wasting hours to try to fix this, so I'm bowing out of any further discussion. Thanks to all who tried to help me fix it

August 1, 2018

Unfortunately, the login on iOS seems to have changed again.


1) submit a bug report via

If you have .... an issue related to Duolingo Plus, please select "Purchase Issue" from the dropdown on the form

2) copy-paste Duolingo's answer in this discussion, so that I am able to help other iOS users.

August 1, 2018
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