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Bluff your way through planning poker

Add to Slack

What is Bluff?

Bluff is a free bot that supports your team to make estimations with planning poker technique directly in Slack. You can install the app with "Add to Slack" button above.

Main features

Privacy policy

The app can be used in any public channel without a need to be invited. However, it doesn't scan through all the channels in a workspace. The only information the app knows about the channel where the slash command was executed is the channel id.

The app cannot access any messages outside the planning poker workflow.

The app can list the users in a channel or in a custom group. This allows you to use @group, @channel and @here mentions. The only information the app gets about the users is just the user id and user name.

The app stores and processed data from bidding rounds temporarily for up to 7 days. Bidding-round data older than 7 days is deleted permanently. To request immediate deletion of your data, please write us an email at

The app is hosted on the Heroku platform (, Inc., Salesforce Tower, 415 Mission Street, 3rd Floor, San Francisco, CA 94105, USA).


Please send support requests via email.

Website Terms and Conditions of Use

1. Terms

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2. Use License

Permission is granted to temporarily download one copy of the materials on djangsters GmbH's Website for personal, non-commercial transitory viewing only. This is the grant of a license, not a transfer of title, and under this license you may not:

This will let djangsters GmbH to terminate upon violations of any of these restrictions. Upon termination, your viewing right will also be terminated and you should destroy any downloaded materials in your possession whether it is printed or electronic format. These Terms of Service has been created with the help of the Terms Of Service Generator.

3. Disclaimer

All the materials on djangsters GmbH’s Website are provided "as is". djangsters GmbH makes no warranties, may it be expressed or implied, therefore negates all other warranties. Furthermore, djangsters GmbH does not make any representations concerning the accuracy or reliability of the use of the materials on its Website or otherwise relating to such materials or any sites linked to this Website.

4. Limitations

djangsters GmbH or its suppliers will not be hold accountable for any damages that will arise with the use or inability to use the materials on djangsters GmbH’s Website, even if djangsters GmbH or an authorize representative of this Website has been notified, orally or written, of the possibility of such damage. Some jurisdiction does not allow limitations on implied warranties or limitations of liability for incidental damages, these limitations may not apply to you.

5. Revisions and Errata

The materials appearing on djangsters GmbH’s Website may include technical, typographical, or photographic errors. djangsters GmbH will not promise that any of the materials in this Website are accurate, complete, or current. djangsters GmbH may change the materials contained on its Website at any time without notice. djangsters GmbH does not make any commitment to update the materials.

6. Links

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7. Site Terms of Use Modifications

djangsters GmbH may revise these Terms of Use for its Website at any time without prior notice. By using this Website, you are agreeing to be bound by the current version of these Terms and Conditions of Use.

8. Your Privacy

See our Privacy Policy above.

9. Governing Law

Any claim related to this Website shall be governed by the laws of de without regards to its conflict of law provisions.