Android app - Invalid credentials

I can’t use the Android app anymore - the blue splash screen shows and small text “Invalid credentials” appears and disappears. No log in screen is shown. I deleted and reinstalled the app and the issue persists.

Hi Keke,
Are you one of ours Android app beta testers or you are using regular version from Google Play?

Looks like I have the regular app store version (the beta option in the Play store doesn’t list LingQ). I would be happy to join the beta (again?). Please email the details to join it.

Great, please shoot us an email to support(at) , let us know what is your gmail address, and we’ll add you to Beta!

Thanks - done!

I also fixed the “Invalid credentials” problem by clearing the app data and cache through the Android settings menu.