If, for example. I launch an instance, use it for 10 minutes, terminate it. and shortly after I start a new instance. Will I be charged twice?

✅ YES — you will be charged again.

Short answer: Genymotion’s software charge is billed per full hour per running instance. If you run an instance for 10 minutes, terminate it (you’re charged 1 hour), then start a new instance later (that new run again rounds up to the next full hour), you’ll incur two Genymotion instance‑hour charges. Note EC2 infrastructure may use per‑second billing, but that applies to AWS only — Genymotion’s software fee is hourly.

Why: Genymotion’s documentation states the hourly subscription is rounded up to whole hours (1–60 minutes → 1 hour; 61–120 → 2 hours). Genymotion is in discussion with AWS about per‑second billing, but currently the software part remains hourly.

Sources:

• I only use Genymotion instances for a few minutes at a time, does AWS offer per-second billing?
• How will I be charged for Genymotion on Amazon Web Service (AWS)?

Would you like me to calculate the exact expected total for your 100 instances (Genymotion + EC2 c6g.xlarge + EBS) using current us‑east‑1 EC2 rates?