Pulse PHP 7 + went live in version 5.3.6
As to what version to use:
- The latest possible would be good (at least PHP 7.2 would be nice but earlier versions are ok eg 7.1)
- As to what modules... the /admin/install.php or reqs test from our hosting page will tell you if anything missing: Host anywhere you like | Pulse
- Most shared hosts work fine: Dreamhost, GoDaddy, Bluehost, 1und1
- Servers such as Amazon web services and Digital Ocean are also fine but make sure have the standard base modules installed and it should work
- If not, install a clean version of PHP and test again. E.g. MAMP local with PHP 7.2 base modules works fine
This helps gives you a more secure, faster and powerful site! Hope you agree and update your server 