Alternative products to Backdoor

Backdoor

Honest and Anonymous Feedback About Colleagues

3 alternative and related products to Backdoor

Speedback

Anonymous peer feedback via Slack

Ryan Hoover- Founder, Product Hunt
Speedback is built for anonymous peer reviews in Slack, which might work for your needs. Alternatively, you could create a simple Typeform form to poll and ask questions of your group but it won't be integrated in the way you're describing.
5 Alternatives to Speedback
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