Feedbacker 

Feedbacker is a tool that allows you to reach the users and collect their voice on subjects that matter.

Current released version: 1.5 | release notes

Overview

Implemented as a SharePoint Add-in, Feedbacker allows you to create campaigns, collect user feedback and analyze received results.

All data is stored only in your tenant.

After it is added and configure to your page, Feedbacker provides modern experience to the users so they can easily react to your questions.

The campaign item allows you to setup many aspects of the behaviour of feedback form like number of rating stars, header text, default collapsed\expanded appearance.

There are two ways to add Feednbacker to your pages:

Option 1: Use the App Part: 

Option 2: Build a html and emebed it into Content Editor (for clasical pages) or Embed Control (for modern pages):