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1. Some of the health tracking data is off though, and it seems to either disconnect from, or not download updates from my smart watch as often as I'd like.Aside from technical problems, the app seems to work really well, but a very high percentage of the time (well over half, I'd say at least 4 out of 5 times) after entering my credentials, the app gives a "There was a problem connecting to the server" error.

2. I could for about a week, but now the button doesn't even appear.Can only log in one time, after that it always gives an error message saying it can't connect to the server and I have to reinstall the app to fix it.

3. App performance is slow and the data displayed is often inaccurate until multiple refreshes are done.Although you can select Google Fit as your linked activity tracker, I have never been able to get it to successfully sync.

4. I fall back to using the mobile web page, but the mobile web page can't connect to the fitbit app, so I am unable to enter my steps in a timely manner.

5. It may have something to do with adding my phone as a secure device so that I don't have to keep entering security codes that it otherwise texts to your phone, but that would be just as annoying.

6. I have to reach out to support every time I do a brain assessment because it doesn't record it on its own.

7. Uninstall the download and go through all the steps to log in again and it will work until it times out, or I fall asleep, or someone sneezes.

8. I keep getting an error message that it can't connect to the server.

9. Seems early to tell, but the rewards offered seem good enough to check in at least semi regularly.

10. Why even bother pretending you support these trackers? The activity tracking experience is just frustrating.

11. Unbelievable how it STILL doesn't work even after writing to their customer service.I had a store credit.

1. Fix Castlight Not Working/Crashes/Errors/Unresponsive & Black/White screen:

1. Restart Castlight: Restarting the app will resolve most errors.
2. Update the Castlight App. Here is how:
   1. On Android goto PlayStore » Search for "Castlight" » Open Castlight Mobile » click "Update".
   2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Castlight » click "UPDATE".
3. Clear Castlight Mobile app cache: Clearing cached data will force your app to retrieve the latest data directly from Castlight servers.
   1. On Android, goto Settings » Apps » Select "Castlight Mobile" » click Storage » click "Clear Cache".
4. Check Castlight app permissions. If any of these permissions required to use your device's features are disenabled, Castlight might not work.
5. Uninstall and reinstall Castlight. If nothing else has worked, completely uninstall Castlight then reinstall.
6. Restart your device. Last, restarting your device can often clear most problems causing Castlight not working

2. Fix Castlight Server issues & Internet Connection

1. Check network connection: An unstable Internet will make Castlight be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
2. Disable VPN: VPN can cause connection errors and lead to Castlight not working. Make sure all VPNs are off
3. Enable background data: When Background data is turned off, Castlight may not be able to connect to the Internet when running in the background.