As you can see below you have access to various filters with Osortoo.
You can choose the number of winners you want to pick for your Giveaway.
You can include the replies to the comments as participation.
You can remove all the duplicated participation of your Giveaway.
You can give more chances for more tags in a comment or more chances for more comments on the post(s).
You can add a minimum of @tags required to participate and a specific @tag that you want to validate the participation.
You can also add a text filter or an #hashtag filter to your giveaway, which means the winner comment’s has to have that text or #hashtag.
You can import participants from an excel list and remove participants.
Finally you can download the list of participants in excel format before making the draw.