360player.io

Most of the paid viewers (including this one) offer integration with your website with an iframe. That means no coding/installation required, all configuration is done with their online tools and you only need to embed add iframe to your pages. 360player.io offers a nice looking easy to use viewer that works in all modern (supporting WebGL) and most legacy and mobile browsers. Automatic image recognition, labeling and geo-tagging included. Prices start at $12/month (no free tier).

Supported projections: equirectangular
License:
Distribution Method: Cloud Service
Price: from $12/month with unlimited uploads