Example:
Blitzz Sessions: 100 sessions / month
Images: 20 images / sessions
Call Recording: OFF
Avg. Image size: 150 KB / Image
Total Storage: 100 x 20 x 150 KB = 300 MB / month. (~0.3GB)
Monthly Cost = ~$0.30 / month *
*Cost Including Geo-Replication - this is useful in case one region is impacted or has an outage. If your IT team requires additional controls, security features, geo-replication on multiple different regions - that may be charged slightly higher.
If you would like to run your own numbers, please use this calculator:
https://azure.com/e/901b4e583bf948a888b3f9d07d323aee
Please note that there is an additional cost for Data Transfer. That is how many times you access the stored data. This is charged at $0.004 for every 10,000 files you read and $0.110 for every 10,000 images you write.