InTouch Access Anywhere - this is basically a Remote Desktop Services client accessible via an HTML5 browser to an InTouch application running on another machine, with Read/Write capability. - https://www.wonderware.com/hmi-scada/intouch-access-anywhere/
InTouch Web Client - this is a new (with the 2017 version) native HTML5 view of InTouch graphics, no RDS required, via a server network address. The initial release will allow Read Only capability for visibility/supervisor purposes, a future release will support Read/Write. https://www.youtube.com/watch?v=rW8zanS57SU
Your local Wonderware distributor can provide details on both and how to deploy with your specific architecture.