Nuster vs Openport

Nuster has no write-up on Specifiction yet; its figures are above.

Openport lets users make a local TCP port reachable from the internet without opening a firewall port. It builds a tunnel between a device and the outside world for remote access, and its web service and API can show online IoT devices and manage a fleet. Access can be controlled by user groups. The `--http-forward` option assigns a hostname to a session for serving a local port over HTTP and HTTPS with a valid certificate. Custom-domain forwarding requires a CNAME record and works over HTTPS only. With TLS passthrough, TLS ends on the user's machine, keeping tunnelled traffic encrypted end to end. Forwarded ports require visitors to click a token link by default; a clicked link remains valid for 24 hours. Openport also lists brute-force blocking and port-scanning detection. It supports API, Linux, macOS, web, and Windows. Since client 2.3.0, sessions can forward UDP as well as TCP on the same port when the server supports it. The service was founded in 2014 and offers a free plan, a 30-day trial, and paid plans from $1/mo.