Google Cloud Storage is a RESTful online file storage web service for storing and accessing data on Google Cloud Platform infrastructure. The service combines the performance and scalability of Google's cloud with advanced security and sharing capabilities. It is an Infrastructure as a Service (IaaS), comparable to Amazon S3 online storage service. Google Cloud Storage offers four storage classes, identical in throughput, latency and durability.

Microsoft Azure is a cloud computing service created by Microsoft for building, testing, deploying, and managing applications and services through Microsoft-managed data centers. It provides software as a service (SaaS), platform as a service (PaaS) and infrastructure as a service (IaaS) and supports many different programming languages, tools, and frameworks, including both Microsoft-specific and third-party software and systems.

Google Cloud includes a calculator for pricing for those who are interested. Prices may vary according to region.

​Click Here to be directed to the calculator.

Consumption Plan

Execution Time $0,000016GB-s (400k GB-s)

Total Executions $0,20 per million executions (1M free executions)

Premium Plan

vCPU duration $129.29 vCPU/month

Memory duration Memory $8.979 GB/month

For a pricing example, you can check here.​

Onboarding
Great documentation with plenty of tutorials and help to quickstart things off.

Scalability
Includes autoscaling.

Regions
North and South America, Europe, Asia and Australia.

Backups 
Google Cloud offers two primary backup options:

NearLine Storage
This option is intended for data that users need to access no more than once per month, for example backups and multimedia content only occasionally accessed by users.

ColdLine Storage
This option is for data that can be accessed no more than once per year (for example, disaster recovery backups of key systems), or possibly not at all (for example data held for compliance reasons).

Security
All Cloud Storage data are automatically stored in an encrypted state, but you can also provide your own encryption keys. For more information, see Cloud Storage Encryption. Gsutil performs all operations using transport-layer encryption (HTTPS), to protect against data leakage over shared network links.

Onboarding
Access to the rich and varied documentation of Azure. Easy to start.

​Scalability

Auto-scalability is built-in.

Regions

Azure Serverless Storage is available on all the platforms that have Azure available, such as the United States, Europe, Asia Pacific, and more to come.

​Backups 

Requires Azure Cloud Backup Services. Very effective and covers a wide variety of aspects from backups.

​Security
Has to be manually added, but gives free-reign in terms of configurations and settings.

Google Cloud Storage offers four storage classes, identical in throughput, latency and durability. The four classes, Multi-Regional Storage, Regional Storage, Nearline Storage, and Coldline Storage, differ in their pricing, minimum storage durations, and availability.

• ​Interoperability - Google Cloud Storage is interoperable with other cloud storage tools and libraries that work with services such as Amazon S3 and Eucalyptus Systems.
  
• Consistency - Upload operations to Google Cloud Storage are atomic, providing strong read-after-write consistency for all upload operations.
  
• Access Control - Google Cloud Storage uses access control lists (ACLs) to manage object and bucket access. An ACL consists of one or more entries, each granting a specific permission to a scope. Permissions define what someone can do with an object or bucket (for example, READ or WRITE). Scopes define who the permission applies to. For example, a specific user or a group of users (such as Google account email addresses, Google Apps domain, public access, etc.)
  
• Resumable Uploads - Google Cloud Storage provides a resumable data transfer feature that allows users to resume upload operations after a communication failure has interrupted the flow of data.
  

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