Last updated: March 5, 2026
Duolingo may fail to load lessons, show a blank screen, get stuck on the loading screen, or crash when you try to start a lesson. This interrupts your language learning streak.
Internet connection: Duolingo requires internet for most lessons.
Outdated app: Old versions may have bugs that prevent loading.
Cache corruption: Accumulated cache data can cause problems.
Server issues: Duolingo's servers may be experiencing downtime.
Device compatibility: Very old devices may struggle with the latest app.
• Make sure you're connected to Wi-Fi or mobile data.
• Try loading a website to confirm your connection works.
• Duolingo needs internet for lessons, leaderboards, and progress syncing.
• Close Duolingo completely from your recent apps.
• Wait a few seconds and reopen it.
• Try loading a lesson again.
• On Android: Settings > Apps > Duolingo > Storage > Clear Cache.
• On iPhone: Uninstall and reinstall the app.
• This won't delete your progress — it's saved to your account.
• Go to the App Store or Google Play Store.
• Update Duolingo to the latest version.
• Restart the app after updating.
• Go to Duolingo Settings > Sign Out.
• Close the app completely.
• Reopen and sign back in.
• Uninstall Duolingo and restart your phone.
• Reinstall from your app store.
• Log in with your existing account — all progress is saved in the cloud.
If Duolingo still won't load, visit support.duolingo.com to report the issue. Include your device type, app version, and a description of the problem.
Q: Will I lose my streak if Duolingo is down?
A: If there's a widespread outage, Duolingo sometimes grants streak repairs. You can also use a Streak Freeze to protect your streak.
Q: Can I use Duolingo offline?
A: With Duolingo Plus (Super), you can download lessons for offline use. Free users need an internet connection.
Q: Why is Duolingo so slow?
A: Close other apps, clear Duolingo's cache, and make sure you have a stable internet connection. If your device is old, the latest app version may be too resource-heavy.
Q: Is Duolingo free?
A: Yes, Duolingo has a free tier with ads and limited hearts. Super Duolingo (paid) removes ads and adds offline access and unlimited hearts.