There is no such app that would prevent your phone from locking itself when it is connected to Wi-Fi or Bluetooth. However, there may be apps that can prevent your phone from locking if the app is active, i.e. if the app that is using Wi-Fi or Bluetooth has the option to keep your phone from locking. Note that this is different from simply having an app that detects that your phone is connected to Wi-Fi/Bluetooth and just prevents your phone from locking - the app has to be actively doing something, e.g. streaming a movie, counting your steps, monitoring some paranormal activity, etc.
Alternatively, you can try to check your phone lock screen settings and see if there is a setting to set the screen time out to "never" - availability of this setting seems to vary depending on the combination of phone model and OS version - but I feel that this isn't exactly what you're really looking for.
08-21-2015 10:49 AM