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Dell AppSync vs QoreStor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 1, 2026

Review summaries and opinions

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

Categories and Ranking

Dell AppSync
Ranking in Copy Data Management
4th
Average Rating
8.4
Number of Reviews
10
Ranking in other categories
No ranking in other categories
QoreStor
Ranking in Copy Data Management
6th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
Backup and Recovery (54th), Data Replication (10th), Disk Based Backup Systems (8th), Storage Software (5th), Disaster Recovery (DR) Software (29th), Software Defined Storage (SDS) (20th), File and Object Storage (23rd)
 

Mindshare comparison

As of March 2026, in the Copy Data Management category, the mindshare of Dell AppSync is 17.6%, down from 20.3% compared to the previous year. The mindshare of QoreStor is 6.5%. It is calculated based on PeerSpot user engagement data.
Copy Data Management Mindshare Distribution
ProductMindshare (%)
Dell AppSync17.6%
QoreStor6.5%
Other75.9%
Copy Data Management
 

Featured Reviews

Rhett Waldock - PeerSpot reviewer
Programmer Analyst at Mankato Clinic, Ltd.
Simple to install, reliable, and has good technical support
There were some limitations in the product that prompted us to shift away from it. You could only have one AppSync profile per server to target where the data could be replicated to. There were a few specific feature limitations in terms of flexibility that required the development of an alternative. However, that was the only flaw. In relation to, the replication destinations. We wanted to collect data from multiple systems and then replicate it on a single system. AppSync was based on a one-to-one replication footprint, which was the limitation that we had encountered. We needed to combine several systems into one. That was one of the scenarios provided by the solution. I would like to have the ability to bit the same system with multiple AppSync replications would definitely be beneficial to us. And general flexibility enhancements.
CH
System Administrator at a wholesaler/distributor with 10,001+ employees
Cost savings and efficient data management improve operations but support quality varies
The importance of support is significant to me. I was working for a service provider, and all of our customers had a Quest or warning. Sometimes the support really underperforms. I always had to get it escalated or ask for someone specifically because those other people would just read knowledge-based articles that I had already done myself. Quest QoreStor does not work with any backup software, server, or storage hardware. It has the hardware compatibility list, and you need a specific number of IOPS, so it needs to run on decent hardware at least to have enough input-output operations. Otherwise, the setup result will be canceled. I'm not too sure if there are still physical appliances, but when I first started, we had some customers with a physical Quest QoreStor appliance, and it would only run on certain hardware. It doesn't work with every backup program. For example, Veritas Backup Exec is incompatible, but Veeam is compatible, and V Ranger is compatible as well. I didn't even know that Quest QoreStor has any static AI and behavioral AI technologies.

Quotes from Members

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

Pros

"This solution is very helpful and easy to use."
"I believe one of the advantages we saw was that the configuration was manageable."
"The extreme compression of data is a big thing for us. We were looking for an online backup solution, and QoreStor is very good in terms of data compression. It helps us minimize the required storage in the Blob Storage environment."
"It integrates with various backup software solutions, which makes it compatible with existing backup workflows and processes."
"We need revisions and safe backup so that it could be held up in court, but deduplication and compression are the main features why we have Quest QoreStor. That's where it really shines. I use ZFS and XFS at home, and Quest QoreStor is even better."
"Data deduplication and replication would be the top two features. The encryption and cloud tiering are also attractive for the future."
"QoreStor has helped us to reduce our backup storage requirements on-premises. We've been using the same devices for quite a while, and so it lets us keep using them as opposed to having to rip out all that hardware and create a new on-prem solution. The advantage here is even if we had to retire the hardware tomorrow, the QoreStor part doesn't change. We just have to have additional hardware and put the solution back on whatever hardware we pick and it'll do the same thing."
"Quest QoreStor definitely saved us money."
"I would rate QoreStor a ten out of ten for what it offers for the price."
"The features we use for the data deduplication are nice because we're able to back up a much larger amount of data, yet it doesn't necessarily take up that much data on the devices."
 

Cons

"I would like to have the ability to bit the same system with multiple AppSync replications would definitely be beneficial to us. And general flexibility enhancements."
"It would be helpful if this product has features for transferring to the cloud."
"The ransomware protection of QoreStor could use improvement."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."
"The setup of the software is definitely not the easiest thing. I worked a lot with Quest engineers, especially in the early days when we were first testing it and trying it out. I actually had some of the developers working with us at one point because they were going through these point releases, and I was having trouble getting it to work in this S3-compatible situation. We got it all working eventually, but setup is definitely not the easiest thing in the world."
"They could improve on support a little bit. We have not had to engage their support much, but when we do have issues, it can take longer to get things resolved."
"There can be some kind of monitoring solutions to alert users to issues with the appliance or software, making it easy for customers to monitor their systems in the field."
"In terms of improvement, we would like to have an Air Gap feature to prevent a virus from attaching to something. So that when we don't do a backup, we want the QoreStor to stay offline. It would be a nice feature to have."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial. After everything is set up and configured, there should be a way to export the configuration. In case something happens to the QoreStor server, and we need to reinstall and configure everything, being able to import the configuration would be helpful. This feature does not currently exist."
"The importance of support is significant to me. I was working for a service provider, and all of our customers had a Quest or warning. Sometimes the support really underperforms."
 

Pricing and Cost Advice

"I believe we paid them on a yearly basis."
"Quest QoreStor's pricing is affordable. We evaluated Veeam, a well-known company for backup solutions, but found their pricing to be quite high. Veeam's price was almost double. For us, Quest QoreStor is very affordable."
"The pricing is good. It is competitive for a managed services provider. I like the ability to pay by the terabyte, allowing for an incremental cost that we and our customers can afford, so the solution grows with the customer."
"The cost is per terabyte, and overall, the cost was reasonable when compared to some competitors."
"Its pricing model is very attractive. You have one price, and you get everything from QoreStor."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Manufacturing Company
11%
Financial Services Firm
9%
Healthcare Company
8%
Performing Arts
11%
Manufacturing Company
11%
Computer Software Company
8%
Media Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise6
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise1
Large Enterprise2
 

Questions from the Community

Ask a question
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What else besides data replication does QoreStor offer?
Quest QoreStor can be used for multiple things besides data replication. For example, it can be trusted to make a backup of your data. You know that replication and backups are different, right? Re...
How does Quest QoreStore protect your data?
One of our favorite features of Quest QoreStore for data protection isn't the backup, actually, though we're using it actively (maybe just as much as data replication, to be honest). We absolutely ...
How does Quest QoreStore solve repetitive data replicas?
When I first found out about data replication and the many benefits it had, I couldn't help but wonder - what about the copies you don't need? Like it's unavoidable for some of the copies to get da...
 

Also Known As

AppSync, Replication Manager
QoreStor
 

Overview

 

Sample Customers

Getronics
American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Find out what your peers are saying about Dell AppSync vs. QoreStor and other solutions. Updated: March 2026.
884,797 professionals have used our research since 2012.