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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
5.8
Organizations find Amazon S3 cost-effective, scalable, and productivity-boosting, with economic advantages and reduced overhead costs.
Sentiment score
8.2
Zadara offers cost-effective scalability, eliminating upfront investments with flexible, nearly limitless capacity, potentially saving 50% in time and money.
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 cost is not cheaper compared to AWS, and we have not seen the expected return on investment.
Cloud System Engineer at cloud251
 

Customer Service

Sentiment score
6.9
Amazon S3 support is professional and responsive, with high user ratings, despite occasional delays and cost concerns.
Sentiment score
8.2
Zadara's exceptional, 24/7 global customer service and technical expertise reduce user workload, earning high satisfaction ratings.
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
 

Scalability Issues

Sentiment score
7.9
Amazon S3 provides scalable, cost-effective storage with strong security, widely used across industries for data management.
Sentiment score
7.6
Zadara provides scalable, flexible workload management, supporting business growth with adjustable tiers and high performance for various needs.
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
Zadara is a fully-fledged platform, and our customers are happy with its use.
Cloud System Engineer at cloud251
 

Stability Issues

Sentiment score
7.7
Amazon S3 is praised for high stability, performance, and 99.99% uptime with minor latency but noted security concerns.
Sentiment score
7.5
Users appreciate Zadara for its stability, high-availability, and reliability, noting minimal downtime and dependable performance in demanding environments.
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
 

Room For Improvement

Amazon S3 users desire enhanced dashboards, better security, improved performance, simplified configurations, intuitive interfaces, and more competitive pricing.
Zadara needs better communication, advanced features, broader support, improved infrastructure, and user-friendly upgrades to enhance market competitiveness.
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
 

Setup Cost

Amazon S3 offers cost-effective storage with pay-as-you-go pricing, but retrieval and advanced features can be expensive.
Zadara offers predictable pay-per-use pricing, with all-inclusive features and support, appealing to cost-conscious enterprise buyers.
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 offers scalability, high availability, security, and cost-effective data management, appreciated for performance, reliability, and global accessibility.
Zadara offers flexible cloud integration, scalable storage solutions, and predictable costs with high performance, reliability, and user-friendly support.
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
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
2nd
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
84
Ranking in other categories
No ranking in other categories
Zadara
Ranking in Public Cloud Storage Services
15th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
12
Ranking in other categories
All-Flash Storage (32nd), Software Defined Storage (SDS) (17th), Compute Service (10th), File and Object Storage (20th)
 

Mindshare comparison

As of January 2026, in the Public Cloud Storage Services category, the mindshare of Amazon S3 is 13.2%, up from 11.8% compared to the previous year. The mindshare of Zadara is 2.0%, up from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Public Cloud Storage Services Market Share Distribution
ProductMarket Share (%)
Amazon S313.2%
Zadara2.0%
Other84.8%
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.
KK
IT Technical Architect at AVALIS
Troubleshooting becomes more accessible and management improves over time
I use this product as storage. Specifically, I use it as big storage. That's the main use case for Zadara Zadara's troubleshooting feature is very valuable for me. After the last update, managing the product became easier. Management is more straightforward and useful. These improvements are…
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Manufacturing Company
9%
University
9%
Financial Services Firm
8%
Computer Software Company
19%
Manufacturing Company
12%
Comms Service Provider
6%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise17
Large Enterprise39
By reviewers
Company SizeCount
Small Business12
Large Enterprise4
 

Questions from the Community

What do you like most about Amazon S3?
We can easily connect to the AWS resources.
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?
Amazon S3 can be improved with more intuitive cost visualization tools with forecasting capabilities, faster restore times from Glacier tiers, better real-time monitoring of data access patterns, a...
What needs improvement with Zadara?
The initial installation was difficult because many steps required the command line interface (CLI). Maintenance can also be complicated, especially when deeper troubleshooting requires navigating ...
What is your primary use case for Zadara?
I use this product as storage. Specifically, I use it as big storage. That's the main use case for Zadara ( /products/zadara-reviews ).
What advice do you have for others considering Zadara?
As for the pros and cons, the main concerns are the complexity of the initial installation and the complicated maintenance due to the CLI usage. Overall, I do not have other complaints. My overall ...
 

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: December 2025.
879,425 professionals have used our research since 2012.