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Amazon S3 vs Zadara comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 1, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
4.2
Amazon S3's cost-effectiveness and scalability lead to ROI through cost savings, improved operations, and enhanced data management capabilities.
Sentiment score
7.2
Zadara offers flexible, cost-effective storage expansion, with up to 50% savings and no major hardware investments, despite AWS comparisons.
Moving infrequently accessed data to cheaper classes like Glacier is beneficial for long-term storage at a lower cost.
Information Security Analyst at a financial services firm with 201-500 employees
I have seen a return on investment, and the ROI that we observed in our organization includes reducing manpower by 20% and achieving zero downtime for storage expansion, which improves overall productivity.
Data Engineer at a tech vendor with 10,001+ employees
Amazon S3 has a reasonable price as you pay a flat price to use it.
Senior Data & AI Engineer at Imprint
The project had a calculated cost that was fifteen thousand dollars, and came to an amount of six to seven thousand dollars with Zadara.
Arquiteto De Cloud at Claro Brasil
The cost is not cheaper compared to AWS, and we have not seen the expected return on investment.
Cloud System Engineer at cloud251
I can see the return on investment because we are saving around 15 to 18% of the operational cost when compared to AWS.
AI product lead at Sortis
 

Customer Service

Sentiment score
6.7
Amazon S3's customer service is rated highly for responsiveness and expertise, though some users report delayed response times.
Sentiment score
8.2
Zadara's customer service is praised for efficient, 24/7 support, proactive issue monitoring, and knowledgeable technical assistance worldwide.
I rate the technical support from Amazon for S3 a ten out of ten.
CTO at Atulya Abhinav Tech Private Limited
The customer support for Amazon S3 is very good; they are responsive and knowledgeable, providing quick resolutions, clear documentation, and proactive guidance during migrations or performance tuning.
Data Engineer at a tech vendor with 10,001+ employees
An engineer is assigned based on the severity of the issue.
DevOps Engineer at Olla Systems Limited
We lack adequate response times and a 24/7 service level agreement.
Cloud System Engineer at cloud251
I rate the technical support from Zadara as nine out of ten.
IT Technical Architect at AVALIS
The support that Zadara provides feels like calling a friend for help.
AI product lead at Sortis
 

Scalability Issues

Sentiment score
7.8
Amazon S3 offers efficient storage scalability, auto-scaling features, and unlimited data storage, making it a favored choice despite costs.
Sentiment score
7.9
Zadara provides seamless, scalable storage solutions with cost-effective resource expansion, ideal for dynamic business needs and budget adaptability.
Data placed in an S3 bucket is replicated across availability zones in a region, ensuring scalability and availability.
Information Security Analyst at a financial services firm with 201-500 employees
The level of scalability allows storage to automatically scale on demand, without the need for manual intervention.
AWS Consultant at Virtual University
The scalability of Amazon S3 is excellent as it handles unlimited data and seamlessly supports growth without manual provisioning or performance degradation.
Data Engineer at a tech vendor with 10,001+ employees
There is no need to worry about scalability because the virtual machine automatically detects the load and then takes the load balance.
AI product lead at Sortis
The Zadara team handled changes to hard drive RAID and the storage that made up all the logical part, and it was very transparent to the end user.
Arquiteto De Cloud at Claro Brasil
Zadara is a fully-fledged platform, and our customers are happy with its use.
Cloud System Engineer at cloud251
 

Stability Issues

Sentiment score
7.8
Amazon S3 is highly stable and reliable, offering 99.99% availability, supporting seamless business operations with minimal downtime.
Sentiment score
7.7
Users praise Zadara's stability and consistency, noting strong failover, smooth updates, and proactive support despite rare glitches.
There is zero latency or downtime.
AWS Consultant at Virtual University
Transitioning between S3 storage classes, like moving data from the standard class to Glacier or Glacier Deep Archive, has been challenging.
Information Security Analyst at a financial services firm with 201-500 employees
Amazon S3 is highly stable.
DevOps Engineer at Olla Systems Limited
The security and control side, for what it offered, gave total stability.
Arquiteto De Cloud at Claro Brasil
 

Room For Improvement

Amazon S3 users seek improved UI, security, cost efficiency, faster speeds, better integration, and more customization and storage options.
Zadara users recommend proactive updates, enhanced features, improved interfaces, better security, platform compatibility, and AI integration with pricing adjustments.
An improvement could be associating the naming with personal accounts, allowing more familiar or desired names without conflicting with global conventions.
DevOps Engineer at Stellar Tech
The practice of protecting data could be more streamlined or mandatory.
Information Security Analyst at a financial services firm with 201-500 employees
I would like to see an increase in the data upload limit, similar to DynamoDB, where there is no data limit.
AWS Consultant at Virtual University
Adding AI capabilities could enhance the offering as well.
Cloud System Engineer at cloud251
Maintenance can also be complicated, especially when deeper troubleshooting requires navigating the CLI and searching for logs.
IT Technical Architect at AVALIS
They currently look like simple PHP interfaces, but they need to customize and work on their interfaces and user interfaces significantly.
AI product lead at Sortis
 

Setup Cost

Amazon S3 is scalable and cost-effective, but data transfer fees and licensing can impact overall expenses for enterprises.
Zadara offers simple, competitive pricing aligned with IaaS, with flexible billing but has regional cost concerns in South Africa and Ethiopia.
I've used the free tier and haven't been charged yet.
DevOps Engineer at Stellar Tech
S3 offers multiple classes, allowing you to move data to cheaper classes for cost savings.
Information Security Analyst at a financial services firm with 201-500 employees
Since using Amazon S3, storage costs have reduced by around 35% to 40% through lifecycle tiering.
Data Engineer at a tech vendor with 10,001+ employees
The pricing is considered expensive.
Cloud System Engineer at cloud251
 

Valuable Features

Amazon S3 is praised for scalability, security, ease of use, AWS integration, and comprehensive data management features.
Zadara excels in cloud integration, offering flexible deployments, advanced management, multicloud support, and predictable costs for diverse customer needs.
Its stability and scalability are also impressive, as it allows for increased storage space according to demand.
DevOps Engineer at Stellar Tech
I appreciate its capability to create static websites and integrate with services like CloudFront, EC2, and DynamoDB.
Information Security Analyst at a financial services firm with 201-500 employees
Security measures like encryption, access controls, and the block public access feature are also important.
AWS Consultant at Virtual University
Zadara's impact on scalability and its competitive pricing compared to other market players positively affect my organization.
Analyst Level 3 at a comms service provider with 10,001+ employees
The most valuable feature is its storage management capability.
Cloud System Engineer at cloud251
Zadara's troubleshooting feature is very valuable for me.
IT Technical Architect at AVALIS
 

Categories and Ranking

Amazon S3
Ranking in Public Cloud Storage Services
1st
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
86
Ranking in other categories
No ranking in other categories
Zadara
Ranking in Public Cloud Storage Services
13th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
15
Ranking in other categories
All-Flash Storage (23rd), Software Defined Storage (SDS) (11th), Compute Service (9th), File and Object Storage (13th)
 

Mindshare comparison

As of August 2026, in the Public Cloud Storage Services category, the mindshare of Amazon S3 is 15.8%, up from 12.5% compared to the previous year. The mindshare of Zadara is 2.7%, up from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Public Cloud Storage Services Mindshare Distribution
ProductMindshare (%)
Amazon S315.8%
Zadara2.7%
Other81.5%
Public Cloud Storage Services
 

Featured Reviews

reviewer2774889 - PeerSpot reviewer
Data Engineer at a tech vendor with 10,001+ employees
Has reduced storage costs and improved data management through automated lifecycle and seamless service integration
The best features that Amazon S3 offers are high durability and availability with virtually unlimited storage, lifecycle management for automated tiering and cost control, versioning to retain and recover data changes, and integration with services such as Glue, Athena, EMR, Lambda, along with strong security via IAM roles, bucket policies, and encryption. These features help by ensuring data is always available, securely stored, and easily accessible for pipelines. Lifecycle policies reduce manual cleanup, versioning safeguards against accidental deletions, and integrations allow us to directly run analytics or trigger workflows without moving data around. Amazon S3 event notifications help automate tasks such as triggering ETL jobs or Lambda functions on new data arrivals, and features such as cross-region replication ensure data redundancy and compliance, while fine-grained access control makes it easy to manage permissions across teams securely. My organization has seen improvements in data accessibility, reduced infrastructure costs, and simplified data management through Amazon S3. We now have a unified scalable storage layer that supports analytics, backups, and migrations seamlessly, leading to faster workflows and better decision-making.
AA
Arquiteto De Cloud at Claro Brasil
Hybrid data migration has reduced costs and now needs stronger security and database integration
I would like to share something that I believe could improve Zadara's process, which is the issue of communication with databases. Today we have MongoDB as a cloud service, so integration with databases in Zadara would bring better performance in connection in SaaS models and in dynamic models that could bring a platform and a solution that could increase Zadara's usage in the market and in its business scope. Zadara can improve in the database integration area as I mentioned. Zadara can have better dynamism such as MongoDB in SaaS and bring this better dynamism by connecting and offering it within the clouds as a possibility of block storage within that partner cloud, such as AWS EBS, Google's cloud storage, or something within Azure. Creating a stronger partnership where this block storage can become an API connectable across various clouds but native to those clouds would be beneficial. I noticed simplicity in the security part during the time I used Zadara, so I believe Zadara's security needs to improve to provide more and deliver more security visibility to the end customer so that they feel more secure with data encryption and attack protection. A WAF on the API connection that goes through greater protection, something along those lines, could help guarantee that the data is protected by Zadara.
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Construction Company
11%
Manufacturing Company
8%
Marketing Services Firm
8%
Comms Service Provider
13%
Construction Company
12%
Computer Software Company
10%
Manufacturing Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise18
Large Enterprise39
By reviewers
Company SizeCount
Small Business13
Large Enterprise7
 

Questions from the Community

What is your experience regarding pricing and costs for Amazon S3?
Since using Amazon S3, storage costs have reduced by around 35% to 40% through lifecycle tiering, data availability improved to 99.9% which minimizes downtime, ETL processing time decreased by appr...
What needs improvement with Amazon S3?
I would appreciate Amazon expanding the available documentation to keep it as modern and up-to-date as possible.
What is your primary use case for Amazon S3?
I use Amazon S3 for storing images, uploading files like PDFs or PNGs, and other documents and images. I use Amazon S3's lifecycle management features for changing storage classes when the data nee...
What needs improvement with Zadara?
Zadara can be improved by making their interfaces more attractive. They currently look like simple PHP interfaces, but they need to customize and work on their interfaces and user interfaces signif...
What is your primary use case for Zadara?
My main use case for Zadara is to build and validate the GPU as a Service and the AI sovereignty that they're working on. I have developed a tool that works based on GPU as a Service, and it also c...
What advice do you have for others considering Zadara?
Regarding Zadara's AI capabilities, I think it depends on the MSPs that they are performing collaborations with, and based on that, the MSPs are responsible for configuring the data governance or a...
 

Also Known As

S3, Simple Storage Service
No data available
 

Overview

 

Sample Customers

Netflix, Airbnb, Thomson Reuters, Zillow, Alert Logic
Time, Inc. A&E Network, The Washington Post, News UK, McGraw Hill, Gilt, Toshiba, Deloitte, VMware
Find out what your peers are saying about Amazon S3 vs. Zadara and other solutions. Updated: June 2026.
908,834 professionals have used our research since 2012.