The only "free" option is SecuRemote which is fairly limited in terms of useful situations.
See: https://community.checkpoint.com/t5/Remote-Access-VPN/Quick-Primer-on-How-to-Configure-your-Gateway-...
Both "client" and "clientless" options require some sort of license, which is an extra cost.
I believe all modern gateway licenses come with a five user Mobile Access license, which enables both options.
SMB gateways include more than this (depends on the model).
For additional users, you will either need to buy one of:
- A Mobile Access license (either 50, 200, or Unlimited users, licensed based on concurrent connections)
- Harmony Endpoint licenses (buy as many as needed, but licensed based on number of clients installed)
- CPEP-ACCESS licenses (not in the Product Catalog, but still orderable), which are "Endpoint Security VPN" (includes Desktop Firewall + Compliance). Licensed based on number of clients installed.
It depends on what kind of access you want to allow from what kind of device.
And, of course, what you have licenses for.