ahtasnim I am using the "Basic Shared Hosting" plan, that's why it is so cheap - and I am paying €6/month for Flarum set-up, free domain, ssl, app installer, email, ftp, SiteLock - Lite, CDN support & DDOS protection etc.. Have a look here: https://hostiso.com/vps-hosting/ & https://hostiso.com/shared-hosting/
You can pay a bit more for extra space but for my needs the Basic Shared plan works well.