If you are particularly addicted to your Facebook, Instagram, or Tinder social life, you may have noticed by now that none of the services are currently available.
The exact cause of the outage is unknown, but I assume whatever took down Facebook took down Instagram as well. Both services are not available on both, the web as well as the mobile apps, although WhatsApp, another Facebook owned property is working fine.
What took down Tinder is also unknown, as it is not related with either of these services.
Usually these things are very temporary so they should be back up by the time you even read this.