We are using Imprudence Viewer as our client-side software.
Notes of Imprudence Viewer below can be found at Zadaroo:
Features that Imprudence Does NOT Support
Jump more than 4096 regions away
Mesh uploads
Viewing Mesh (shows up as weird triangles)
Multiple Attachments on a point
Inability to see users using multiple attachments on the same point properly
Build tools outdated
Singularity Viewer is recommended.