What are some alternatives?
When comparing Conversion Monitor and POWr, you can also consider the following products
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Google Optimize - Optimize is a product that allows you to work with website experimentation.
Optimizely - A/B testing you'll actually use.
React Native - A framework for building native apps with React