Hi there! I understand you're trying to switch back to your original FreeStyle Libre 3 account on your iPhone after having switched users while on vacation. That switch can sometimes lead to a bit of confusion. To get us started and assist you best, could you tell me:

1. Are you trying to log back into your previous account via the FreeStyle Libre 3 app on your iPhone (iOS 18.6)?
2. Are you encountering any error messages or is the app not letting you switch accounts?
3. Have you tried logging out completely, closing the app, and then logging in again with your original account details?

Let me guide you step-by-step once I know a little more. But in general, the usual approach is to:

1. Log out of the current user account in the app.
2. Close the FreeStyle Libre 3 app completely (swipe up from the app switcher).
3. Reopen the app and log in with your original credentials linked to your LibreView account (if you use one).

If this doesn't work or you face an error like the sensor being "in use" or the account not recognized, sometimes it helps to restart your iPhone once before trying again. Also, ensure your device's date and time are correct—time zone changes from travel can interfere with syncing.

Can you give me those details, and if possible, what happens exactly when you try to switch back? That way I can help you more precisely.

The user i switched to just deleted the app on her phone and i cannot log in on my phone

Thanks for the info! So the other user deleted the FreeStyle Libre 3 app from their phone, and now you're unable to log in on your iPhone with your original account. That situation is important to understand properly.

Here’s what typically happens with the FreeStyle Libre 3 app regarding account and data:

- Deleting the app from a device does not delete your actual account or cloud data stored on Abbott’s servers. Your account is intact if you remember your login credentials.
- However, any data stored locally on that phone (cached info) will be removed.
- To regain access, you need to log back into the app on your iPhone using the same email and password linked to your LibreView account.
- If you or the other user changed account settings or severed sharing links (if you used LibreLinkUp for sharing), that might impact access to sensors or shared data.
- Make sure the app is updated to its latest version on your iPhone.
- Also confirm you have a stable internet connection for authentication.

Given this, here’s a step-by-step approach to getting back in:

1. On your iPhone, open the FreeStyle Libre 3 app.
2. If you see any logged-in user, fully log out of that account.
3. Close the app completely (swipe up in app switcher).
4. Reopen the app and choose “Sign In.”
5. Enter your original login credentials (email & password) connected to your LibreView profile.
6. If you don’t remember the password, tap “Forgot Password?” to reset it.
7. Once logged in, check if your sensors and data sync properly.
8. If you had sharing set up, verify in LibreLinkUp app or your account if the sharing permissions are intact.
9. Restart your iPhone after these steps if you run into any syncing problems.

If you still cannot log in or the app says your account doesn’t exist or sensor is in "use" by another account, it might be necessary to contact Abbott Diabetes Care support at [email protected] for more detailed account assistance.

Please let me know if you’ve already tried logging out and back in or password reset, and what happens exactly when you try to log in. I’m here to help you get this sorted!

More details on app deletion and data here 1