Scrum Activity Tools

Scrum Poker Online: https://www.scrumpoker-online.org/en/
  Use Case:
    Once discussion of the pointing of a story has completed, teams can go to Scrum Poker Online to handle the pointing process.
    Each user get's invited to a Scrum Poker room where they are shown multiple cards with point values on them.
    Each team member then picks the point card they believe best fits the discussed story. These cards get displayed on the screen
    face down. Once each member has chosen their point card, the room leader/scrum master can flip each of the cards to reveal to
    the team each member's point value. Discussion on differing point values can be discussed afterwards.
  - Free Account:
      - Ability to create invite to rooms
      - Edit estimate numbers
      - Change display name
  - Premium Account:
      - All Free Version Features
      - Use integrated timer feature
      - See mean/median estimate values

RetrospectiveOnline: https://retrospectiveonline.com/
  Use Case:
    Simple tool for handling Sprint Retrospectives. No account is necessary for this program and no premium is offered.
    The scrum master can create a Retro Board room and select from three template layouts or create their own.
    Once the layout has been selected, the scrum master may begin inviting each team member into the retro board room.
    A common layout is Good, Bad, and Action Items where each member can place a note under the columns of their choosing.
    User's may like these notes to signify that they agree with a note instead of creating multiple similar notes.
    This tool has an integrated timer to allow each user to input their thoughts on each column before time runs out.