Cannot sign into companion apps (iOS/macOS)

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Post Title: Cannot sign into companion apps (iOS/macOS)

Your Question/Topic:

I signed up for toggl yesterday on the web, which worked fine. However, whenever I try to use the macOS and iOS companion apps and sign in, I get an error:

“Oops, something went wrong. Invalid full sync response received.”

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Screenshot 2026-06-18 at 13.20.32
Screenshot 2026-06-18 at 13.20.32964×1244 76.9 KB

Thanks for your help!

2

Sorry to hear you’re running into this! The “Invalid full sync response received” error on the macOS and iOS apps is something that has come up for other users as well.

Since the knowledge base doesn’t include specific troubleshooting steps for this error, here are some general things worth trying:

  • Make sure your apps are updated to the latest version available in the App Store
  • Try logging out fully if you are partially signed in, then signing back in
  • Check if you are using the same login method on the apps as you used to sign up on the web (for example, if you signed up with Google, use that same option in the app)
  • Try uninstalling and reinstalling the app, then attempting to sign in fresh

If none of those help, this does look like it could be a bug worth reporting through the official bug report process. The Toggl help center has an “I Found A Bug” article that can guide you on how to submit that report so the right team can look into it.

Hopefully one of those steps gets you in quickly!

— AI-generated response. Our team reviews all community posts. If you need further help feel free to tag Support in your reply.