All photos published on Ooopic can be used for free. You can use them for commercial and noncommercial purposes. You do not need to ask permission from or provide credit to the photographer or Ooopic, although it is appreciated.
More precisely, Ooopic grants you an irrevocable, nonexclusive, worldwide copyright license to download, copy, modify, distribute, perform, and use photos from Ooopic for free, including for commercial purposes, without permission from or attributing the photographer or Ooopic. This license does not include the right to compile photos from Ooopic to replicate a similar or competing service.