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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 (50th), Data Replication (9th), Disk Based Backup Systems (8th), Storage Software (4th), Disaster Recovery (DR) Software (27th), Software Defined Storage (SDS) (19th), File and Object Storage (23rd)
 

Mindshare comparison

As of May 2026, in the Copy Data Management category, the mindshare of Dell AppSync is 16.3%, down from 21.8% compared to the previous year. The mindshare of QoreStor is 7.1%. It is calculated based on PeerSpot user engagement data.
Copy Data Management Mindshare Distribution
ProductMindshare (%)
Dell AppSync16.3%
QoreStor7.1%
Other76.6%
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.
Jeff Manuszak - PeerSpot reviewer
CTO at EDSI
Cost-efficient, highly scalable, and installable on different types of hardware
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. We are pretty lenient as we do a lot of IT support ourselves. We are not very hard on support organizations, but when a customer has a support issue, it would be easier if the support processes were a little bit more automated. It would be beneficial to have an easier way to upload diagnostic dump files. They can make it easy for the customer to collect the diagnostic data. 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. This is especially critical because it stores customers' backups, and a failure can have significant business impacts. If a customer does not have the backups and has a disaster, they can be out of business, so monitoring is key.

Quotes from Members

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

Pros

"Simple to use and great product to provide application consistent replica."
"We have application consistent snaps of SQL mounted to development VM’s daily."
"It's integration with SQL and Exchange for VSS-based backup works perfectly, the agent is easy to install, the GUI is easy to navigate and debugging is easy to enable or disable."
"However if you wanted a reliable product to work with new or existing EMC products then I would recommend taking a look at Replication Manager."
"It has excellent performance and reliability, and with a little more flexibility, it could be nearly perfect."
"In few steps you can configure your replicas without using auxiliary scripts."
"The automation of the replication process is the most valuable feature, as we just configure or schedule the replication process once and the work is done automatically."
"The EMC RM is a very useful technology for consistent data replicas for a significant application portfolio like MS SQL, MS Exchange, Oracle DB etc."
"Quest QoreStor is very stable compared to our previous solution."
"Not having to be onsite to swap tapes on a daily, weekly, or monthly basis, alone, has really paid for its usage through the savings in time."
"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."
"I would rate QoreStor a ten out of ten for what it offers for the price."
"This software solution can be installed on many different types of hardware, which makes it very flexible. We can run it on virtual machines or virtual servers, providing convenience for solutions of varying sizes, from small to large."
"The dedupe and compression are pretty extreme. On disk, we're getting dedupe rates of up to 65 percent of data and compression of 34 percent. When you go to the cloud, it's more like 76 percent for dedupe and almost 50 percent for compression."
"QoreStor has helped us to reduce our backup storage requirements on-premises, and we've been using the same devices for quite a while, so it lets us keep using them as opposed to having to rip out all that hardware and create a new on-prem solution."
"Since we started to resell QoreStor, we have been using it internally; it's better than other backup solutions we have used or evaluated."
 

Cons

"The product needs to be less complex (compatibility, solution enabler etc.)."
"Mount replica function through EMC RM needs to be faster because when you are using Veritas volumes with mirrors the mount routine is too late (the mount process time is directly proportional the volume size when you are using Veritas Volume Manager (vxvm))."
"Yes. Periodically I needed to restart the agent on the client side and sometimes on the server side."
"Each replication manager installation can only handle so many records. If you have over a certain number of bookmarks or snaps, the GUI becomes un-usable."
"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."
"There were some limitations in the product that prompted us to shift away from it."
"When I deployed the Replication Manager and detected issues, I found that the technical support was not really helpful because they spent a lot of time to found a hotfix which resolved my problem."
"The management interface is in need of improvement. The graphical user interface (GUI) for the web management tools appears clunky, and not super intuitive."
"The management interface is in need of improvement. The graphical user interface (GUI) for the web management tools appears clunky, and not super intuitive."
"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."
"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."
"The setup of the software is definitely not the easiest thing in the world."
"The installation could use improvement. The initial installation was a little touchy and it's not really user-installable. You have to have a connection to support to install."
"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."
"They need to increase their maximum capacity. Other than that, they're doing a pretty good job."
 

Pricing and Cost Advice

"I believe we paid them on a yearly basis."
"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."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
13%
Manufacturing Company
9%
Construction Company
8%
Manufacturing Company
12%
Financial Services Firm
10%
Comms Service Provider
9%
Performing Arts
8%
 

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

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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: April 2026.
893,164 professionals have used our research since 2012.