The app and site don't sync! It's very frustrating

February 9, 2014


When I do lessons offline on the app, for the past three times, it doesn't show my progress on the site. In addition,when I want to progress to the next lessons on the app, it says that duolingo couldn't connect.

February 9, 2014

Same thing happening to me now (2 years after oriwissn commented). I did some lessons offline in the app, and then when I checked on the computer they weren't registered. I logged into the app online and it still shows I completed the lessons I did offline, but it won't synch online. So in the app it shows I've done 1/3 of a topic, online it's 0/3.

August 20, 2016

The exact same thing is also happening to me one year after that last message. It's unbelievable that something like that still can't be fixed. That was the only reason I signed up for a Pro account. Such a waste of money, the Pro version has basically nothing interesting to offer, apart from getting rid of all those ads! :(

April 16, 2018

I am having the same issue, and contacting customer service is pretty much useless.

January 23, 2019

Happening to me 5 years after the original post, lol.

June 3, 2019

Hey, I see the messages are pretty old here, and there's just been a new app update... However, it didn't help in my case. The android app is frozen and doesn't show the progress I make on the website. Tried restarting the app, re-installing the app, logging out and in both in the app and on the website - no result. Help!

October 1, 2014

This kind of incompetence is a joke and duolingo's silence in the matter is unacceptable

November 11, 2014

same here, please help as this is driving me crazy!

February 18, 2014

Same here the app on my iphone is not syncing with the online version. I just lost a 16 day streak on the app, and only 7 days were on the desktop version. It was close to midnight and I went to my desktop to keep up my streak and I continue to have a streak on my desktop (missing 7 days), but now on my app I lost all 16 days on track because they do not sync. Please help!!!

February 21, 2014

Yup, streaks really help me stay motivated but some days when I'm busy I can't login to my PC... I wish I could do stuff in the app and keep my score :(

August 20, 2016

I don't know why Duolingo's software team don't just fix this. It would be so easy...

January 18, 2017

It is very much not so easy. As a software developer, this is a very VERY complex task. You have to manage the sync between the app and the website quick and make sure that it uses very little data while doing so. While it should be fixed after 3 years (hell, even after 6 months from the first report) it is not easy.

January 10, 2018
  • 1367

My streak on android is also different from what the website shows and I know how it happened. They went out of sync when my streak freeze jumped in. My streak was kept on the site but was zeroed on android and they are out of sync since then. But only in the side bar. If I go to my profile on android it displays the same streak value as the website.

February 22, 2014

Hi, the same thing is happening for me after a recent update. I'll complete a lesson and it will show 10/10 lessons complete and start the next lesson. However, when I open it later, it will have reverted me to 8/10. This happens when I am offline (on the subway). When I am back online, it seems to have preserved my lessons but then later, reverts the progress. It's frustrating because it used to work fine before a recent update.

April 4, 2014

Syncing from app to site still not ok (Android app, 3.37.2, dec. 2016): finished lessons on app appeared open on site and streak not up-to-date.

Reopening the app did not force a sync. Refreshing site neither (duh). Doing new lessons on the app or the site didn't help either. Logged out from the app and logged in again: the lessons that I already had finished on the app appeared open again on the app (so my changes weren't saved on the app and I lost progress).

December 12, 2016

I have the exam same issue, I would complete several skills and go on mobile to do some more, but my progress hasn't updated at all whether I force shut the app or not.

April 30, 2018

I have the app installed on my phone (Motorola Droid X) and a Samsung MP3 player. I can do lessons but they don't 'sync' the lessons completed with the desktop.

June 7, 2014

Hi! I have experienced the same sync problems about a week ago. I have progressed within the new skills (namely Gerund and Future in Italian) using my notebook, but the progress was not shown in my Android app. I have cleared cache, force stopped app etc., but with no success. So effectively, I cannot progress toward the end of my tree on Android, unless I repeat the missing parts of the skills every time I change the device

When strengthening a particular skill or skills in general, though, the progress is synchronised correctly. Also, the grand total of XP is always in sync, as far as I noticed, even though a part of it is gained from Immersion. Only new skills seem to be a problem.

I hope this problem will be addressed really soon, at it IS annoying, truth to be told :).

Thank you for the otherwise excellent app and excellent idea behind it!

January 22, 2015

Same for me. iOS 8.1. Newest version of the app. I can work offline with the newest modules but when I come back online it resets back to where I was when I was last online.

The interesting thing is that it does keep my XP from offline work. Just not the completion of any modules.

I tried restarting the app but nothing changed. It seems to be syncing because it updates my offline XP. It just doesn't sync the modules.

January 24, 2015

I had a very similar issue -- to the point where I couldn't even sign in on the app. I'm pretty sure the app doesn't sync/login over cellular, as once I got home and switched to wifi, I was able to login and everything synced. Hopefully that will help someone else.

April 8, 2015

I just had a very annoying syncing issue and lost a streak because of it. However, what happened to me may shed some insights on the bug itself, so here goes: I was on a 10+ days streak using mainly the site. On Friday, I used the android app, but while not connected. I made 70xp until the app had no more preloaded content ready (that's another very annoying thing, by the way). So far, so good. Saturday I just used the site, and didn't really pay attention to the xp or streak. Right now, on Sunday, I used the site again, but this time I noticed my streak has been interrupted and is missing a day - Friday. Realizing that day I had been on the app, I thought it made sense and would be fixed by syncing; so I connect my phone to Internet and start the app. To my surprise, the streak is not fixed - which prompted me to search and I found this thread. However, here is the interesting part: nothing I did could fix the issue and give me my Friday xp and repair the streak; so I gave up and started a lesson. As I finished it, the site gave me the usual 10xp, and showed me my progress so far for the day: 80xp! So the app DID sync the received xp, but didn't attribute it for Friday (correct), but for today instead (incorrect) since that's when I sync'ed. Hope this helps fixing the issue somehow.

April 26, 2015

Well it is still not fixed. My mobile app does not see any lessons i completed on my the web.

I uninstalled my app data, uninstalled it, reinstalled and after re-login it still claims that i did not do any work today.

Web and mobile app are out of sync.

This is frustrating and kills my urge to learn.

do something about it people!

August 19, 2017

Try force quit if you still are having this issue. Be well amigo!

January 23, 2019

XP counts in the app and website are not synced either! Infuriating!

September 16, 2017

I see this discussion has been going on for 3 years & the problem still exists! I lost my rather long streak because of this issue. frustrating that there isn't any progress!

November 26, 2017

I FOUND A SOLUTION TO THE ISSUE THAT I WAS EXPERIENCING. Previously, I had also had no way to sync my phone with the progress I was making on the computer, although it seemed that my computer was more or less tracking my phone (Android) progress. To get the phone to refresh, the only thing that worked for me was to switch language mode in the phone app. I'm focusing on German now, so all I had to do was switch to Ukrainian and back and my progress (streak, lingots, crowns, units, strength bars...) had totally synced correctly onto my phone. Hopefully this will help someone!

May 11, 2018

That did it for me, thanks!

October 12, 2018

No now stuck on different language can't get back

March 11, 2019

Since I only study one language I force quit the Android app and when it came back it was synced. I was online the entire time, yet it wasn't syncing. Just hope to help someone else with this problem because Duo WILL make you redo the lessons otherwise.

January 23, 2019

I'm on iOS and that doesn't work for me. I lost 4 lessons today and I'm really annoyed about it. I've contacted DL about this several times and they don't seem to care.

January 23, 2019

I figured out a solution that works for my iOS device. It seems to be an issue of simultaneous sessions. My progress tracks or updates on both the app and the website if I am logged into only one session across all platforms and devices at the time of completing lessons. In other words, when I am completing lessons on my computer via the website, I am logged off in the app on my phone. Additionally, when checking to see if your progress has tracked across platforms, be sure to log out or end your session on one platform before logging in on another. One active session at a time seems to fix this problem for me. Hope this helps others too!

May 17, 2019

Well, I can see that this issue, at least for me, has not been resolved. The App and Online versions show different progress in particular when it comes to revision: the App and the PC versions want me to practice different things. Given that I do most of my practice on the PC, it is the App that is lagging behind. I have searched for a way to sync the two in Settings, but it just doesn't exist...

January 15, 2016

Hi, I'm new to Duolingo and just found that my Android and laptop aren't synching either! Very frustrating...

November 20, 2016

My phone has one identity and my computer has a totally different ones different levels different competence . how do I get them to sync?

March 5, 2017

Why aren’t my ipad and iphone syncing with my lessons

November 23, 2017

Nothing syncs between apps on cell phone and tablet and the PC website. Not good!

February 22, 2018

I had the same issue from time to time, but for me I can solve it by logging out of the app, then logging back in

May 9, 2018

I know! my app I have 2109 lingots but on the site I only have 217 -- very frustrating

July 17, 2018

Not sure if this has been fixed yet, but I noticed that when I check my settings in the app, it syncs up all information again. I was upset since I would have lost a 53 day streak but upon checking to see if I could fix mobile data settings in app, upon refreshing, everything was back to normal. Not sure if it will work for everyone but was a quick fix for me

November 12, 2018

Today when I did my online stories, none of my points sync with the App, although the App recognized that I met my goal.

February 18, 2019

Hi, you need to have both connected to the wifi, then they will sync automatically. Good luck!

February 18, 2019

Still no resolution to the sync problem? I've used duolingo for a long time and this has never been a problem until now. This is very frustrating as I use both platforms fairly equally. Now I'll have to cut my time in half as I don't want to have to repeat lessons to have them update my progress. Being on wifi and checking account settings, logging out on both, restarting both devices, none of this has worked for me. :-(

February 21, 2019
  • 1647

I'm with you on that, it is most frustrating! I have not encountered this problem until these latest changes to the site. And yes, I have researched & done everything suggested, then even had an IT guy try to no avail. This is strictly a Duolingo issue as no other app is effected. We can only hope the IT boys for this site take pity on us. Just curious, has any other android user noticed that Google Play as of today's date April 28/19 is still not offering the newest version 4.6.3 of the app?

April 21, 2019

April of 2019 and this is still an issue apparently. It’s frustrating. Apparently there is no fix coming.

April 28, 2019

June, 2019. Still happening.

June 5, 2019
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