How much does Genymotion SaaS cost for 30 minutes of use per day?

Yes. At the Pay-As-You-Go rate of $0.06 per minute, 30 minutes per day is about $1.80 per day, or about $54 for a 30-day month. That is based on Pricing, which says usage is billed at $0.06/minute per active virtual device, and Genymotion for Enterprises shows the same rate.

If you run more than one virtual device at the same time, the cost increases per running device. Payments are billed weekly by default once usage exceeds the $150 threshold.