Jobscan is free for up to 5 scans and rescans per month. If you need more scan than that, it will cost you $49.95 per month or $89.95 for every 3 months which works out to $359.80 per year. See the plan details here.
The free plan includes 5 Match Rate Calculations/month, 5 Keyword Comparisons/month, and a scan history limit of 20. The paid plans include unlimited scans plus a ton more. See the full feature list below.