1. Pricing Model: Azure Storage offers a pay-as-you-go model where customers only pay for the storage resources they use. In contrast, Titan follows a subscription-based pricing model, which requires users to pay a fixed fee regardless of their usage.
2. Data Replication: Azure Storage automatically replicates data to ensure high availability and durability. On the other hand, Titan allows users to choose the level of replication based on their needs, offering options for single or multi-region replication.
3. Storage Types: Azure Storage provides a variety of storage options such as blobs, tables, queues, files, and disks. Titan, primarily focusing on graph databases, offers storage specifically designed for handling graph data efficiently.
4. Scalability: Azure Storage is highly scalable and can easily accommodate the storage needs of growing businesses. Titan, being a graph database, is optimized for handling complex relationships and queries efficiently while scaling horizontally.
5. Security Features: Azure Storage offers robust security features such as encryption at rest and in transit, role-based access control, and advanced threat detection. Titan also prioritizes security with features like fine-grained access control and encryption of sensitive data within the database.

In Summary, Azure Storage and Titan differ in their pricing models, data replication options, storage types, scalability, and security features.