What users are saying about

Amazon DynamoDB vs Azure Cosmos DB

Amazon DynamoDB
113 Ratings
Azure Cosmos DB
36 Ratings

Amazon DynamoDB

113 Ratings
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Score 8.4 out of 100

Based on 113 reviews and ratings

Azure Cosmos DB

36 Ratings
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Score 8.3 out of 100

Based on 36 reviews and ratings

Feature Set Ratings

  • Amazon DynamoDB ranks higher in 1 feature set: NoSQL Databases

NoSQL Databases

9.5

Amazon DynamoDB

95%
8.6

Azure Cosmos DB

86%
Amazon DynamoDB ranks higher in 6/7 features
Amazon DynamoDB ranks higher in 6/7 features

Performance

9.7
97%
25 Ratings
8.1
81%
6 Ratings

Availability

9.9
99%
25 Ratings
9.5
95%
6 Ratings

Concurrency

9.8
98%
24 Ratings
8.0
80%
6 Ratings

Security

9.8
98%
25 Ratings
9.3
93%
6 Ratings

Scalability

9.8
98%
24 Ratings
8.6
86%
6 Ratings

Data model flexibility

7.8
78%
25 Ratings
8.0
80%
6 Ratings

Deployment model flexibility

9.7
97%
23 Ratings
8.5
85%
6 Ratings

Attribute Ratings

  • Amazon DynamoDB is rated higher in 4 areas: Likelihood to Recommend, Likelihood to Renew, Usability, Support Rating

Likelihood to Recommend

9.7

Amazon DynamoDB

97%
35 Ratings
8.3

Azure Cosmos DB

83%
6 Ratings

Likelihood to Renew

8.5

Amazon DynamoDB

85%
34 Ratings
7.7

Azure Cosmos DB

77%
4 Ratings

Usability

10.0

Amazon DynamoDB

100%
1 Rating
8.6

Azure Cosmos DB

86%
2 Ratings

Support Rating

10.0

Amazon DynamoDB

100%
1 Rating
9.4

Azure Cosmos DB

94%
2 Ratings

Likelihood to Recommend

Amazon DynamoDB

It is ideal for those projects where you need to store a large amount of data, but you do not know how many will be so you need the database to increase its storage capacity together with the number of users, without having to spend extra money, it also has a great potential thanks to the fast connection it offers, so the data travels at high speed, and this speeds up the performance of the applications, excellent for projects where non-relational databases are used and what matters is to store large quantities of information and use them at high speed.

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Winston Mendes | TrustRadius Reviewer
Winston Mendes
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Azure Cosmos DB

NoSQL platforms are very useful when it comes to security, speed, accuracy, high accessibility with high read and write power. Everything is managed under the cloud and we have the various capabilities of Azure and support for Microsoft products with us. Flexibility in price and variety of features, as well as real-time results, are some of the popular [features] of this platform.

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Niloofar Keshvari Nia | TrustRadius Reviewer
Niloofar Keshvari Nia
View all 6 answers on this topic

Pros

Amazon DynamoDB

  • It's very easy to get started, creating a table with a partition/sort key and you're on your way.
  • You can scale up and down your read/write IO as needed.
  • You can store structured and unstructured data.
  • It works great with Web Development as it's JSON based.

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Bob Smith | TrustRadius Reviewer
Bob Smith
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Azure Cosmos DB

  • Turn-key geo-redundancy with multi-master writes is unprecedented and unparalleled in the industry!
  • Guaranteed low latency makes Cosmos DB an excellent fit for most of our performance-intensive situations.
  • The tunable consistency model simplifies so many challenges in distributed systems engineering that otherwise require advanced knowledge of computer science topics. I continue to be impressed at how Cosmos DB has abstracted away so much complexity.

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Lars Kemmann | TrustRadius Reviewer
Lars Kemmann
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Cons

Amazon DynamoDB

  • Complex searching (no support for case-insensitive or full-text search).
  • Only supports up to two-key indexes.
  • Requires choosing the indexes up-front when doing searches.
  • Does not have an SQL compatible query front-end.
  • No join-table support (requires putting all data into one table).

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Chris Moyer | TrustRadius Reviewer
Chris Moyer
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Azure Cosmos DB

  • Expensive, so be careful of the use case.
  • We had a thought time migrating from traditional DBs to Cosmos. Azure should provide a seamless platform for the migration of data from on-premises to cloud.

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Anonymous | TrustRadius Reviewer
Verified User
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Pricing Details

Amazon DynamoDB

General

Free Trial
—
Free/Freemium Version
—
Premium Consulting/Integration Services
—
Entry-level set up fee?
No

Starting Price

$0.00,013 capacity unit per hour

Amazon DynamoDB Editions & Modules

Edition
On-Demand - Write Operation$1.251
On-Demand Read Operation$0.251
On-Demand Data Stored$0.252
On-Demand Point-in-Time Recovery$0.202
On-Demand Snapshot$0.102
On-Demand Restoring a Backup$0.153
On-Demand Global Tables$1.8754
On-Demand Streams$0.025
On-Demand Data Requests Outside AWS Regions$0.096
Provisioned - Write Operation$0.000657
Provisioned - Read Operation$0.000137
Provisioned - Data Stored$0.258
Provisioned - Point-in-Time Recovery$0.208
Provisioned - Snapshot$0.108
Provisioned - Restoring a Backup$0.159
Provisioned - Global Tables$0.00097510
Provisioned - Streams$0.0211
Provisioned - Data Requests Outside AWS Regions$0.0912
  1. per million requests
  2. per GB per month
  3. per GB
  4. per million write operations replicated
  5. per 100,000 read operations
  6. per GB
  7. capacity unit per hour
  8. per GB per month
  9. per GB
  10. per Read Capacity
  11. per 100,000 read operations
  12. per GB
Additional Pricing Details
—

Azure Cosmos DB

General

Free Trial
—
Free/Freemium Version
—
Premium Consulting/Integration Services
—
Entry-level set up fee?
No

Starting Price

—

Azure Cosmos DB Editions & Modules

—
Additional Pricing Details
—

Likelihood to Renew

Amazon DynamoDB

Amazon DynamoDB 8.5
Based on 34 answers
We will most likely continue to use DynamoDB for certain use-cases. If we stopped using DynamoDB as often, it would likely be because we started using Aurora Serverless more. Aurora Serverless may offer similar availability, management and cost benefits while allowing developers to use their MySQL tools and experience.

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Anonymous | TrustRadius Reviewer
Verified User
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Azure Cosmos DB

Azure Cosmos DB 7.7
Based on 4 answers
It's efficient, easy to scale, and works. We do have to do a bit of administration, but less now than when we started with this a couple of years ago. Microsoft continues to improve its self-management capability.

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Anonymous | TrustRadius Reviewer
Verified User
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Usability

Amazon DynamoDB

Amazon DynamoDB 10.0
Based on 1 answer
Very easy to use and we can quickly prototype something using DynamoDB to verify its viability.

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Anonymous | TrustRadius Reviewer
Verified User
View all 1 answers on this topic

Azure Cosmos DB

Azure Cosmos DB 8.6
Based on 2 answers
It has very good compatibility and adaptability with other APIs and developers can safely create new apps because it is compatible with various tools and can be easily managed and run under the cloud, and in terms of security, it is one of the best of its kind, which is very powerful and excellent.

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Niloofar Keshvari Nia | TrustRadius Reviewer
Niloofar Keshvari Nia
View all 2 answers on this topic

Support Rating

Amazon DynamoDB

Amazon DynamoDB 10.0
Based on 1 answer
I haven't dealt with the support for Amazon DynamoDB personally.

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Anonymous | TrustRadius Reviewer
Verified User
View all 1 answers on this topic

Azure Cosmos DB

Azure Cosmos DB 9.4
Based on 2 answers
Microsoft is the best when it comes to after-sales support. They have a well-structured training and knowledge base portal that anyone can use. They are usually quick to respond to cases and are on point for on-call support. I have no complaints from a support standpoint. Pretty happy with the support.

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Anonymous | TrustRadius Reviewer
Verified User
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Alternatives Considered

Amazon DynamoDB

We evaluated using MongoDB or Amazon DyanmoDB. For us, the biggest advantage is that there's no maintenance cost for Amazon DynamoDB. Mongo gets complicated when you setup sharding. With Amazon DynamoDB, it's literally a push of button to increase throughput. This saves time and money on DevOps resources.

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Anonymous | TrustRadius Reviewer
Verified User
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Azure Cosmos DB

Azure Cosmos DB has the benefit of having multi-master key tenancy compared to Redis and Mongo. Reads are just as fast, if not faster than Mongo. However, the distribution of writes (i.e. ACID transactions) isn't as high as Google Cloud Spanner or CouchDB. Azure Cosmos DB writes slower than Cassandra, but with Cosmos, we do not have to worry about replication or tools like Zookeeper to handle it. Azure Cosmos DB has it built-in.

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Anonymous | TrustRadius Reviewer
Verified User
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Return on Investment

Amazon DynamoDB

  • Since the Amazon manages the instance, the amount of time a developer needs to spend configuring the database is less. For comparison, if we were to manage the same instance manually, we need to set up EC2 instance, install the DB, setup backup scripts, track backup failures, which is a great overhead for the dev. Using DynamoDB this overhead is reduced and hence having a great ROI.
  • Great documentation and easy setup makes an easy learning curve to transition to DynamoDB. Only caveat is as with any database, the data structure should be thoroughly analyzed for types of querying because there are limitations with the DynamoDB API.
  • Ties very well with rest of the Amazon eco system. Having rest of the applications in Amazon allows managing the application security a breeze.

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Anudeep Palanki | TrustRadius Reviewer
Anudeep Palanki
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Azure Cosmos DB

  • Azure Cosmos DB may be expensive on its own, but it was cheaper than increasing the size/power of our VMs running SQL Server instances enough to keep up with the volume and velocity of the unstructured data.
  • We got the JSON data out of our SQL Servers and they quit tipping over.

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Anonymous | TrustRadius Reviewer
Verified User
View all 6 answers on this topic

Screenshots

Azure Cosmos DB

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